Author: Steve Mintz

Giusarma Garners Deans’ Teaching Showcase Honors

College of Sciences and Arts Dean Ravindra Pandey has selected Elena Giusarma, assistant professor in the Department of Physics, for the Deans’ Teaching Showcase. Giusarma will be recognized at an end-of-term event with other showcase members. Her inclusion makes her a candidate for the CTL Instructional Award Series.

Giusarma Instruction Innovator

Elena Giusarma
Elena Giusarma

Giusarma has proven herself to be an excellent instructor in the classroom environment. She’s implemented innovative teaching methods and strategies to enhance the learning experience for students. Giusarma incorporates interactive simulations, virtual observatory tools, and multimedia resources to bring the wonders of astronomy directly to the students. This approach aims to cater to diverse learning styles and foster a deeper understanding of complex celestial concepts. Her teaching style goes beyond traditional lecture formats. Active learning techniques such as classroom discussions, group activities, and debates encourage students to articulate their thoughts and challenge their understanding of astronomical concepts.

Giusarma’s course in Statistics, Data Mining, and Machine Learning in Astrophysics for undergraduate and graduate students plays a crucial role in shaping students’ academic and professional trajectories. In an era dominated by data-driven decision-making, proficiency in these areas is highly sought after in both research and industry. The course serves as a pathway to developing practical skills directly applicable to analyzing and interpreting vast astronomical datasets. The course is part of a graduate certificate program developed in 2022, offering participants a structured pathway to acquire expertise in statistical analysis, data mining, and machine learning in astrophysics. The importance of these skills extends beyond academia, opening doors to diverse career opportunities in research institutions, technology companies, and various sectors that rely on data analytics.

Giusarma Receives Praise

Jacek Borysow, interim chair of the physics department, noted that Giusarma’s knowledge and understanding of physics and astronomy allow her to be a role model for female students who aspire to succeed in science and engineering. “Her presence in the classroom enables female students to visualize where they want to go and what is possible to achieve. … Her lectures are full of positive energy and unlimited enthusiasm; she sincerely cares about the students. She is simply an outstanding instructor and mentor.”

Maria Bergstrom, associate dean for undergraduate education in the College of Sciences and Arts, praised Giusarma’s commitment to both undergraduate and graduate education: “Faculty like Dr. Giusarma have a tremendous impact on the success of Michigan Tech students. From inspiring young, prospective students to come to our campus to study astronomy and astrophysics to mentoring graduate students, Dr. Giusarma’s commitment to excellence in teaching is an important contribution to our College, and we are pleased to recognize her achievements.”

About the Physics Department

Physicists at Michigan Technological University help students apply academic concepts to real-world issues. Our physicists take on the big questions to discover how the universe works—from the smallest particles to the largest galaxies. The Physics Department offers three undergraduate degrees and three graduate degrees. Supercharge your physics skills to meet the demands of a technology-driven society at a flagship public research university powered by science, technology, engineering, and math. Graduate with the theoretical knowledge and practical experience needed to solve real-world problems and succeed in academia, research, and tomorrow’s high-tech business landscape.

Questions? Contact us at physics@mtu.edu. Follow us on FacebookTwitter, and YouTube for the latest happenings. Or read more at the Physics Newsblog.

Nathan Schlorke: Physics Pursuits Pay Off with a Bachelor of Arts

Nathan Schlorke
Nathan Schlorke, Physics Major

Schlorke followed the usual path that many new students take to get into Michigan Tech. Both his parents went to Michigan Tech, as did his sister (computer science), piquing his interest. While he wanted to study nuclear engineering (Tech did not have such a program), it was a place where he could study high energy particle astrophysics, and nuclear physics.

There were lots of things for him to get involved in at Tech and deepen his learning while acquiring important skills. Plus, he liked the flexibility that physics offered for future career prospects. When his interests shifted away from nuclear during school, he decided to augment his passion for physics with an electrical engineering degree too.

A Chemical Attraction to Undergraduate Research

Nathan Schlorke and Colin Sheidler
Nathan Schlorke and Colin Sheidler

Schlorke was attracted to undergraduate research early in his college career. He is spurred by a drive to learn more about a particular subject that interests him. “I recognized right away that I had a disconnect to applying physics in the real world,” Schlorke said. “Undergraduate research allows you to see physics in action.”

Through a professor of chemistry’s presentation in a physics class, Schlorke found surface sciences to have a lot of common ground with nano-scale physics. He found work as a research assistant under Dr. Kathyrn Perrine. Schlorke learned valuable skills. He hand-drafted, CAD-modeled, and fabricated a substrate fixture and transfer mechanism for use in performing nanoscience and surface-science experimentation in an ultra-high vacuum (UHV).

The substrate fixture included an in-built cryogenic cooling loop and high-temperature Ohmic heating. Testing methods using the equipment varied from infrared laser spectroscopy to field desorption techniques. He performed mechanical modeling of heat transfer, including modeling a sample holder (in a two-stage vacuum) for a thin crystalline structure. He had to show what happens to the mounted sample when moving between reaction stages. “It was really satisfying to see what I designed for Dr. Perrine. To see it come together and see it in action was a lot of fun.”

Pursuing Physics Undergraduate Research

Nathan Schlorke and Colin Sheidler
Nathan Schlorke and Liesel Schlorke

His semester in the Perrine Lab left him wanting more research experiences, particularly in physics. He found an opportunity as an undergraduate research fellow under Dr. Yoke Khin Yap and Dr. Mingxiao Ye. He worked to optimize the synthesis of unique ultra-thin compounds to create a tune-able band gap. A band gap defines the energy for electrons to move to different states and regions in a material. Modifying such a band gap can increase efficiency in solar cell materials and other microcircuits.

Schlorke observes, “As you get materials into these small states, their properties change rapidly- like in microcircuits and solar cells. When you free an electron by exposing it to light in a solar cell, you can improve its efficiency.” In addition to using pulsed laser deposition, Schlorke also worked on chemical vapor depositions and used Michigan Tech’s Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM) to assess the quality of the layers. 

“During my three years in the Yoke Khin Yap Lab, it was satisfying to know my work helped papers to get completed and published. I enjoyed seeing Mingxao earn his PhD. It’s great to know that I am a part of that,” Schlorke said.

Nathan Schlorke’s Advice for Aspiring Undergraduate Physics Researchers

Schlorke offers advice for budding undergraduate researchers. “Get into it early. It gave me so much confidence. Research seems complex and insurmountable; just daunting with technical terms that I didn’t know. But by doing research I was able to ask questions and go deeper than my studies allowed me to go. I gained a whole new perspective.” Schlorke suggests prospective undergraduate researchers find an application that interests them and find out who is doing research in that area. Then seek them out and ask to take part.

Senior Design Project: Can You Design a Rail Gun?

There’s no shortage of opportunities to get involved at Michigan Tech. A senior design project presented an opportunity. There are more than 9000 metric tons- over 100 million tracked particles and pieces. With thousands launches into space each year, the amount of debris will continue to increase. And by 2030 there will be 60,000 satellites flying in this zone. The presence of many satellites and space debris complicates space travel. 

As a consultant to a senior design project, Schlorke was challenged to create a system to drag debris into the Earth’s atmosphere so it burns up. Schlorke’s physics experience allowed him to design, model, and present a prototype for an electromagnetic-based launcher for on-satellite use. The launcher could send low-speed expanding foam canisters to catch large sections of debris.

The idea was not selected in the competition, but he used the study and pitched it to the Undergraduate Student Board as a special project- a unique one-on-one project class with professor advisement for credit. One of many ways Michigan Tech allows for truly flexible and unique paths- “if one doesn’t exist- you can make your own.” says Schlorke.

Society of Physics Students: Another Opportunity for Schlorke

The Society of Physics Students was also instrumental in helping Schlorke navigate the physics world. “The Society helped me to understand what physicists did,” he said. “What were the opportunities available to me outside of academia? Through the Society of Physics Students, I further developed communication skills. My leadership role helped me learn how to manage an organization, too. These 21st-century skills apply to the real world.” Plus it made him feel part of a community and was a great way to meet people and get to know them.

Ohm-inous Career Ahead Thanks to Physics

Schlorke recently took a lead technical position at GE Aerospace where he works closely with the US Navy, Air Force, and Army on developing test systems to support the US Military. He attributes his success to his physics training. “Physics is widely recognized (and rightfully so) as rigorous and technically fundamental in what it teaches you,” said Schlorke. “It teaches the core principles of problem-solving. Physics trains you to break down a situation you have never seen before, analyze and compartmentalize it, find a resolution, and explain it to others. Thanks to my BA in Physics I have the confidence and the skills to approach problems that are outside of my comfort zone and general area of knowledge.”

As Schlorke gets deeper into his career, he thinks he is using the skills he developed in physics more than those from engineering. Although he admits there is plenty of cross-over between the two. “The physics program at Tech also teaches you the design, writing, and communication skills you need to be successful,” Schlorke said. “It gave me a wide view of the technical universe; thermodynamics, statistical mechanics, etc.. I learned how to decompose a system. As I go deeper into design, I use more physics skill sets to predict and judge how systems will interact—electrically, thermally, chemically, in many ways.”

Schlorke looks back fondly on his time at Michigan Tech. “The Physics department is a place that challenges you,” he said. “They give you all the resources you could need (and more), but how far you take it is really up to you.” Looks like Schlorke’s career is off to a great start.


About the Physics Department

Physicists at Michigan Technological University help students apply academic concepts to real-world issues. Our physicists take on the big questions to discover how the universe works—from the smallest particles to the largest galaxies. The Physics Department offers three undergraduate degrees and three graduate degrees. Supercharge your physics skills to meet the demands of a technology-driven society at a flagship public research university powered by science, technology, engineering, and math. Graduate with the theoretical knowledge and practical experience needed to solve real-world problems and succeed in academia, research, and tomorrow’s high-tech business landscape.

Questions? Contact us at physics@mtu.edu. Follow us on Facebook, Twitter, and YouTube for the latest happenings. Or read more at the Physics Newsblog.

Climate Conference Reflections from Elise Rosky

Recent physics alum Dr. Elise Rosky and Geophysics PhD candidate Gabriel Ahrendt recently attended COP28, the Conference of Parties (COP) in Dubai, United Arab Emirates. It is the largest climate conference in the world. Over 40,000 people from government, academia, research, non-governmental organizations, commerce, and elsewhere attend the annual United Nations conclave. They discuss the latest research and insights concerning climate change and negotiate solutions to minimize the impacts of climate change on the planet.

Dr. Elise Rosky
Climate conference attendee Dr. Elise Rosky

“I learned that scientists are being asked to provide better data about the oceans, mountain ecosystems, and severe weather forecasting,” said Rosky. “But it is made clear that this needs to be done in an interdisciplinary way, that gives communities ownership of the information, is inclusive of indigenous world views, and builds scientific capacity within each country. Because addressing a crisis is complex and involves social aspects as well as logical and technological aspects, without the aforementioned characteristics, the science is unable to create the intended impact on communities that it aims for.”

Rosky moderated multiple panels, including a panel titled “The science-policy interface: How can researchers shape critical climate policies?” The panel included Raina Taitingfong, Indigenous Chamoru and Wildlife Refuge Specialist; Bradley R. Colman, President of the American Meteorological Society; Mariana Rocha de Souza, coral reef biologist; Dr. Ana Spalding, professor of interdisciplinary social sciences and environmental studies; Dr. Andriannah Mbandi, chemical engineer and atmospheric scientist; and Shikha Bhasin, science and policy advisor for UN environmental programs.

Dr. Rosky completed her PhD in fall 2023 working with her co-advisors Raymond Shaw and Will Cantrell. Her thesis Large cloud droplets and the initiation of ice by pressure fluctuations: Molecular simulations and airborne in-situ observations ties the molecular physics of ice-nucleation to the growth and subsequent freezing of droplets in clouds.

You can read more about Rosky and Ahrendt’s reflections on the climate conference in the Daily Mining Gazette.

About the Physics Department

Physicists at Michigan Technological University help students apply academic concepts to real-world issues. Our physicists take on the big questions to discover how the universe works—from the smallest particles to the largest galaxies. The Physics Department offers three undergraduate degrees and three graduate degrees. Supercharge your physics skills to meet the demands of a technology-driven society at a flagship public research university powered by science, technology, engineering, and math. Graduate with the theoretical knowledge and practical experience needed to solve real-world problems and succeed in academia, research, and tomorrow’s high-tech business landscape.

Questions? Contact us at physics@mtu.edu. Follow us on FacebookTwitter, and YouTube for the latest happenings. Or read more at the Physics Newsblog.

Dash to Deliver Graduation Greetings at Fall Commencement

We are so excited to learn Sushree Dash has been chosen as the graduate speaker for fall commencement. Dash will share memorable Michigan Tech moments and advice for the future at the ceremony. The ceremony will take place at 10:30 a.m. Saturday in the Varsity Gym in Michigan Tech’s Student Development Complex (SDC). Dash earned her Ph.D. in Applied Physics.

It’s a fitting end to a successful graduate career. Dash is a 2022 recipient of a Michigan Tech Doctoral Finishing Fellowship, among many other accomplishments. Dash is the recipient of the Ovshinsky and Distinguished Student Awards that recognize Ph.D. students and their research at American Physical Society conferences.

Dash has big plans for the commencement address. “I aim to highlight the power of resilience, mentorship, and the spirit of community that defines our time here,” said Dash. If it’s anything like Dash’s research, it will surely be insightful.

Read more about Dash in Michigan Tech News.

Sushree Dash and Husky mascot pose on the ski hill
Sushree Dash and Blizzard T. Husky after testing Newton’s law of gravity on the ski slopes at Mont Ripley (Image courtesy Sushree Dash)

About the Physics Department

Physicists at Michigan Technological University help students apply academic concepts to real-world issues. Our physicists take on the big questions to discover how the universe works—from the smallest particles to the largest galaxies. The Physics Department offers three undergraduate degrees and three graduate degrees. Supercharge your physics skills to meet the demands of a technology-driven society at a flagship public research university powered by science, technology, engineering, and math. Graduate with the theoretical knowledge and practical experience needed to solve real-world problems and succeed in academia, research, and tomorrow’s high-tech business landscape.

Questions? Contact us at physics@mtu.edu. Follow us on Facebook, Twitter, and YouTube for the latest happenings. Or read more at the Physics Newsblog.

Umbargers Establish Fund to Advance Undergraduate Research in Physics

John and Kathy Umbarger
John and Kathy Umbarger share a happy moment

C. John ’64 and Kathryn O. Umbarger created the C. John and Kathryn Umbarger Physics Fund at Michigan Technological University. The annual fund provides financial support to Michigan Tech’s Department of Physics for undergraduate and graduate student projects and research. 

A Giving Tradition Since 1988

Giving directly to the Michigan Tech physics program is nothing new for the Umbargers. They have been doing so since 1988. In fact, supporting education and learning is something near and dear to the Umbargers. John believes, “It doesn’t matter where you start but what you do in life. With learning and an education, you can do just about anything.” 

John Umbarger
John Umbarger in the 1964 Keweenawan

“Thanks to my Michigan Tech education, I was fortunate enough to meet the love of my life, embark on a terrific career, and start and nurture a terrific family,” John said. “Both Kathy and I have been blessed. We have a sound financial footing, and we want to help Michigan Tech students embark on a similar journey. We hope and encourage other Tech graduates to consider doing the same.”

Physics Advocates Create Opportunities

“Kathy and John have been strong advocates of the physics program at Michigan Tech and provided generous support for the undergraduate research fellowships over the past years,” said Dr. Ravindra Pandey, Department Chair and Professor of Physics. “We are excited for the tremendous opportunities our students get to apply their learning in the lab, practice skills and acquire knowledge that will help them on their future journey and career.”

Kathy Olson Umbarger
Kathy Olson (now Umbarger) was crowned queen of the 1964 Military Ball

The fund enables projects like Breanna Patz’s “Ultralight Sunflower Starshade Structural Design – NASA challenge” under the guidance of faculty advisor Dr. Jacek Borysow. Breanna is working to develop a sunshade that helps those using ground-based telescopes to get an unobstructed view of exoplanets by blocking out the light of stars. As a result, observers can better see the light reflected by a planet and understand the features (e.g., oceans, land masses, atmosphere) of that planet. NASA’s challenge is to create a deployable sunshade for use in space.

Benj Sloma’s work under the guidance of faculty advisor Claudio Mazzoleni is another example. ”Use of Dynamic Photoacoustic Spectroscopy to Measure Light Absorbance of Aerosols” helps researchers to study particles containing black carbon (BC) produced during incomplete combustion and their interactions with clouds. “We could not offer opportunities like these to students without the generosity of donors like the Umbargers,” said Pandey.

Umbargers Pay It Forward

Paying it forward is a common theme for the Umbargers. “We had teachers and educators that made positive impacts on our lives. It’s important for us to pay it forward and give the next generation the same opportunities we had. Plus it is energizing to talk and work with young people,” he said.

How else has John been paying it forward? He teaches classes each week to 12-13 students in the Benton and Franklin Counties Juvenile Justice Center; a role he started in the late ’90s. He founded the Tri-Cities Crystal Apple Awards program, recognizing local teachers. And John just retired from the Pasco School District Vocational Program Board, which he initiated in 1997. This self-funding program enables students to build homes (23 were built in 25 years) to be sold on the open market, teaching valuable skills to hundreds of students. These and countless other examples of community work earned him recognition as Tri-Citian of the Year in 2010.

Michigan Tech Glee Club singing in 1964
John Umbarger (back row, second from left) sings with the Glee Club

John has a bachelor’s degree in physics, a master’s in management, a doctorate in nuclear physics, and served two post-doctoral fellowships. He holds five U.S. patents and was employed at Los Alamos National Laboratory until 1997, spending 26 years with the Department of Energy lab. John and Kathy moved to Washington state in 1997, where John took a job with Fluor Hanford in economic development and community programs. He retired in 2008.

Would You Like To Give?

If you would like to inquire about giving opportunities in the Physics Department or elsewhere at Tech, please contact Karin Van Dyke, Michigan Tech University, Director of Advancement, 1400 Townsend Drive, Houghton, MI 49931. Email: kvandyke@mtu.edu. Phone: 906-487-2464.

Physicists develop a linear response theory for open systems having exceptional points


Linear analysis plays a central role in science and engineering. Even when dealing with nonlinear systems, understanding the linear response is often crucial for gaining insight into the underlying complex dynamics. In recent years, there has been a great interest in studying open systems that exchange energy with a surrounding reservoir. In particular, it has been demonstrated that open systems whose spectra exhibit non-Hermitian singularities called exceptional points can demonstrate a host of intriguing effects with potential applications in building new lasers and sensors.


At an exceptional point, two or modes become exactly identical. To better understand this, let us consider how drums produce sound. The membrane of the drum is fixed along its perimeter but free to vibrate in the middle. As a result, the membrane can move in different ways, each of which is called a mode and exhibits a different sound frequency. When two different modes oscillate at the same frequency, they are called degenerate. Exceptional points are very peculiar degeneracies in the sense that not only the frequencies of the modes are identical but also the oscillations themselves. These points can exist only in open, non-Hermitian systems with no analog in closed, Hermitian systems.


Over the past years, ad-hoc analysis of the scattering coefficients of non-Hermitian systems having exceptional points has revealed a puzzling result, namely that sometimes their frequency response (the relation between an output and input signals after interacting with the system as a function of the input signal’s frequency) can be Lorentzian or super Lorentzian (i.e. a Lorentzian raised to an integer power). In contrast, the response of a standard linear, isolated oscillator (excluding situations where Fano lineshapes can arise) is always Lorentzian.


Now, an international team of physicists led by Prof. Ramy El-Ganainy from Michigan Technological University, along with several collaborators from Penn State, the Humboldt University in Berlin, and the University of Central Florida, has tackled this problem in their recent Nature Communications article titled “Linear response theory of open systems with exceptional points”. In that work, the team presents a systematic analysis of the linear response of non-Hermitian systems having exceptional points. Importantly, they derive a closed-form expression for the resolvent operator quantifying the system’s response in terms of the right and left eigenvectors and Jordan canonical vectors associated with the underlying Hamiltonian.

A schematic representation of a complex non-Hermitian open system with many degrees of freedom made of coupled optical microdisk cavities. The linear response theory developed in this work provides a full characterization of the relation between output and input signals (indicated by green and yellow arrows, respectively) in terms of the eigenmodes and the canonical states of the underlying non-Hermitian Hamiltonian.


“In contrast to previous expansions of the resolvent operator in terms of the Hamiltonian itself, the formalism developed here provides direct access to the linear response of the system and demonstrates exactly when and how Lorentzian and super-Lorentzian responses arise” says Prof. El-Ganainy. “As it turned out, the nature of the response is determined by the excitation (input) and collection (output) channels” says Amin Hashemi, the first author of the manuscript. The presented theory describes this behavior in detail and is generic enough to apply to any non-Hermitian systems having any number of exceptional points of any order, which makes it instrumental for studying non-Hermitian systems with large degrees of freedom.


Lucas Simonson, physics PhD candidate awarded scholarship to study in Germany

Lucas Simonson is off to study in Germany

Lucas Simonson has been awarded a scholarship by the German Academic Exchange Service (DAAD). He will study at the Max Planck Institute for the Physics of Complex Systems in Dresden.

The German DAAD is a joint organization of the universities and other institutions of higher education in the Federal Republic of Germany, and the world’s largest funding organization of its kind. Supported by public funds, the DAAD promotes international academic cooperation, especially through the exchange of students and academics. DAAD scholarships are awarded by selection committees comprising a panel of independent academics.

He looks forward to studying under Professor Kurt Busch starting October 2022 to the end of April 2023. “The rationale for this trip is that joining my advisor in Germany will allow me to proceed with my research activities at a fast pace without any delay due to his absence. It will also allow me to interact with world-class optics research groups at the Humboldt-Universität Berlin,” he says. “It’s a significant milestone in my academic career and will allow me to experience other cultures outside of those in the US to broaden my worldview,” says Lucas.

Studying in Germany adds another frame of reference in his study of physics. “Lucas is bringing a unique perspective to our group by combining an interdisciplinary education in both electrical engineering and physics,” says Ramy El-Ganainy, associate professor of physics.

Lucas obtained an MS in Applied Physics (back in the spring of 2021). He entered the PhD candidacy at the end of this past spring semester. Upon getting his PhD, Lucas plans to pursue R&D-related work at Ft. Belvoir in Virginia for The Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance and Reconnaissance (C5ISR) Center, the U.S. Army’s information technologies and integrated systems center.

Physics Major Anthony Palmer Wins Best Poster at Computing [MTU] Showcase

Michigan Tech physics and applied and computational mathematics double major Anthony Palmer, along with computer science PhD candidate Elijah Cobb, won the best poster recently in the Computing [MTU] Showcase for “Universal Sensor Description Schema: An extensible metalanguage to support heterogenous, evolving sensor data.”

Image of Anthony Palmer and Elijah Cobb in front of their poster at Michigan Tech’s Computing [MTU] Showcase
Anthony Palmer (left) and Elijah Cobb present their poster at Michigan Tech’s Computing [MTU] Showcase

Collecting and processing underwater sensor data is a critical need for U.S. Navy operations. Differences in sensor data types and forms presents a challenge for complete and accurate use of these data. The Universal Sensor Description Schema (USDS) project seeks to design, evaluate, and deploy a unified, extensible metalanguage for supporting legacy and future sensor data across multiple programming languages and environments. Michigan Tech is collaborating with Applied Research in Acoustics LLC to develop a robust programming environment for development of data-intensive applications.

Anthony came up with the idea for the project while interning at ARiA (a small research-and-development firm serving the Navy, government and industry). It’s been the basis for his senior thesis in physics. Anthony says “This project in particular has helped me learn alot about how programming languages work and are made. It also helped me learn a new functional programming language called “Racket”. Finally, it introduced me to some awesome people in the MTU computer science department including my partner Elijah Cobb and my advisor, Dr. Charles Wallace.”

Eye-opening describes the experience for Anthony.  He says, “I would say that I was surprised by the intricacy of how programming languages are built and function. I would also say that it was unexpected how useful recursion can be for solving problems in computing.” Recursion reduces time complexity, adds clarity and reduces the time needed to write and debug code.

Anthony graduates in a few short weeks. HIs attention will turn to the Navy, where he will be a submarine officer. Eventually he hopes to go into graduate school.