Yi joined the lab in January 2025. He earned his Ph.D. from the University of Texas at Austin, where he was advised by Prof. Ann Majewicz Fey. Prior to that, he completed his undergraduate and graduate studies at Xi'an Jiaotong University and Boston University.

Yi's research focuses on surgical robotics and navigation, computer vision, and multimodal large models. His ultimate goal is to develop an Intelligent and Universal Assistant for surgeons, enhancing decision-making and improving patient outcomes. 

Current Projects: Imaging of critical anatomical structures at depth during robotic surgery. 

Research Interests: surgical robotics and navigation, computer vision, and multimodal large models 

Ehsan joined the lab in January 2025. He earned his B.Sc. and M.Sc. degrees in Mechanical Engineering (Mechatronics) from Sharif University of Technology, Iran, and completed his Ph.D. at Stevens Institute of Technology. For more than ten years, Ehsan worked across various industries—including software development, industrial IT, and medical equipment services—serving as an R&D manager before beginning his doctoral studies. Ehsan's Ph.D. research focused on hybrid force-motion control and telemanipulation strategies in robotic tasks with applications in both surgical and manufacturing domains. 

Current Projects: Image-guided robotic surgery procedures for both the TORS and ARPA-H projects. 

Research Interests: Surgical robotics, Telemanipulation, Continuum Robots, Industrial Robotic Solutions, AI applications for robotics, and space applications for robotics.  

Mimi is a PhD candidate in the PhD program at the Thayer School of Engineering. She graduated UC Berkeley with a Bachelors of Science in Bioengineering and subsequently worked in orthopedic medical device design and space rocket development before returning to school. 

Mimi is interested in bioastronautics research and hopes to apply electrical impedance technology to improve medical diagnostics for space travel.

Current Projects: 

• Creation of an EIT instrumented cell culture chamber

• Development of a spaceflight compatible urine sampling device to measure inflight urine calcium concentrations

• Development of a rapid onset scopolamine delivery method and formulation for "rescue" motion sickness relief

• Numerical lumped parameter modeling of the human cardiovascular system in spaceflight to explore acute hemodynamics of weightlessness exposure 

Research Interests: Human Spaceflight & Electrical Impedance based technologies for monitoring cell culture 

Allaire joined that lab in 2019 and is currently a PhD candidate in the Innovation Program at the Thayer School of Engineering. 

In her free time she enjoys handcycling, any outdoor activity with her dog, Baloo, playing tenor saxophone with the Upper Valley Community Band, and advocating for improved health care policies with a focus on rare diseases. 

Current Projects: Allaire's current project focuses on developing a probe that distinguishes between benign and malignant prostate tissue using Electrical Impedance Tomography (EIT) for surgical margin assessment in robotic assisted laparoscopic prostatectomies. Allaire is also investigating the use of EIT as a metric for pulmonary function testing in ALS patients. 

Research interests: Medical device hardware, surgical robotics, wearables 

Sophie joined the lab in 2021 after completing a Bachelors of Science in Biomedical Engineering at Tufts University, where she also competed on the varsity women's soccer team. She is currently is a PhD candidate in the Innovation Program at the Thayer School of Engineering.

Outside of the lab, you’ll find Sophie gravel biking, backcountry skiing, cheffing it up, or playing pick up soccer with the grad student group.

Current Projects: 

Impedance-Based characterization of Oral Cancer 

Research Interests: Medical device development, electrical impedance based tissue characterization, surgical robotics 

Zenia is a graduate student in the PhD program at the Thayer School of Engineering. She completed her Bachelors of Science in Biomedical Engineering at Boston University.

Current Projects: One of her current projects includes investigating the use of impedance 

Sadaf joined the lab in 2023. She is a graduate student in the PhD program at Thayer School of Engineering. She completed her Bachelors of Science degree in Biomedical Engineering at Sheikh Bahei University. Following this experience, she pursued her Masters of Science at Isfahan University of Technology.

Outside of the lab, Sadaf likes Star gazing and reading books, especially self improvement books .

Current Projects: 

• Sarcopenia: early detection of muscle loss in patients undergoing chemotherapy with registration of EIT and Ultrasound

• SEEG: Seizure localization with  simultaneous EIT-SEEG electrodes,  and brain stimulation combinations with SEEG electrodes.

• Fluid shift: detecting fluid shifts in the brain and body with EIT for astronauts during flight in different postures.

Research Interests: Brain science (brain stimulation), Space related research 

Riley is a graduate student in the PhD Innovation Program at the Thayer School of Engineering. She graduated from Brown University with a Bachelors of Science degree in Biomedical Engineering. Post-undergrad, she was hired as a Research Engineer for Dr. Tripathi's Lab for Scalable Bioengineering Solutions For Diagnostics and Life Sciences to continue her work in designing and testing a device for tissue sample processing for downstream single cell sequencing.

Current Projects: Riley is currently investigating how to apply impedance technology at the cellular level for disease detection.

Research Interests: Cellular Biology, Diagnostic Devices, Medical Device development

Kendall studied computer/electrical engineering during her undergrad (Dartmouth ’14, Thayer BE ’14), then spent 4 years in industry working as a software engineer before returning to Thayer for her PhD. She is most passionate about biomedical device design and applications in space – as a NASA graduate research fellow, her PhD is focused on building an EIT system for astronauts in deep space. Currently, Kendall works as a Teaching Professor at Thayer School of Engineering.

Harsha Devaraj joined the Halter lab in 2018 after receiving his Bachelor of Engineering (BE) in Mechanical Engineering from PSG College of Technology in India. At Dartmouth, his engineering science graduate degree focused on engineering in medicine, electrical engineering, and surgical innovation. He served as a graduate research assistant from 2018 to 2023. Currently, he works at Analog Devices as a systems application engineer in their digital healthcare business unit.

Alicia joined the Halter lab in 2016 after completed a Bachelors of Science in Mechanical Engineering from the University of Denver. She completed her PhD in Biomedical Engineering with the Halter Lab in 2021. Currently, Alicia is the CEO and Co-Founder AssurTek Surgical. 

Dennis is a Dartmouth College '14, Thayer BE '14, and Thayer PhD '19. He is currently a postdoctoral research fellow at the Gordon Center for Medical Imaging at Massachusetts General Hospital and Harvard Medical School.

Aditya graduated with his PhD from Thayer in 2016 with his thesis "Clinical feasibility of intraoperative prostate cancer margin assessment using electrical impedance".

Shadab Khan,  PhD

Gunner Pope, PhD

Saaid Arshad, PhD