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Principal Investigator



Assistant Professor

Postdoctoral scholar, 2016-2019

Ginsberg group, University of California, Berkeley

Development of ultrafast interferometric microscopy for 3D tracking of energy flow; biomimetic light harvesting.

Doctoral Prize Fellow, 2015 and ​PhD Physical Chemistry, 2010-2014

Weinstein group, University of Sheffield


Quantum control of electron transfer in molecules ; ultrafast 2D infrared spectroscopy; artificial photosynthesis.

Milan was born in Nice, France, but grew up on Reunion island in the Indian Ocean, where his primary concerns were scuba-diving, bodyboarding, sailing and trekking. He completed his higher education in the UK, where after a masters in theoretical astrophysics he switched to experimental physical chemistry to study artificial photosynthetic systems using ultrafast infrared spectroscopy. In his PhD, performing experiments in Sheffield and at the Central Laser Facility (Rutherford Appleton Labs), he developed a new approach for predictive quantum control of intramolecular electron transfer in the condensed phase using vibrational excitation. In his postdoctoral years at UC Berkeley, he developed a generalizable interferometric ultrafast microscope capable of tracking energy carriers diffusing through any semiconductor in 3D with few-nm precision and picosecond resolution. He was appointed as Assistant Professor at Columbia University in 2019.

Postdoctoral Scholars


2021 - present

PhD Physical Chemistry, 2017-2021

van Thor group, Imperial College London

MPhys Chemical Physics, 2013-2017

University of Sheffield

When he wasn’t playing (field) hockey, climbing or hiking, James did his undergraduate degree in Chemical Physics at the University of Sheffield. During his PhD (at Imperial College London) he briefly became a crystallographer, using X-ray free electron laser crystallography to resolve and control ultrafast protein dynamics. He also spent a lot of time working with ultrafast lasers performing multipulse spectroscopy measurements. Deciding that proteins were ultimately too complicated James thought it would be much more interesting to study (and control) dynamics in strongly correlated materials and so joined the Delor group in 2021. He is curious how New York will compare to his hometown of London. He expects the food will be worse but the weather might (hopefully) be better!


Graduate Students

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2019 - present

BSc Chemistry, 2015-2019

National Taiwan University

Born and raised in Taipei, Taiwan, Cheng is still adapting to the weather in NYC. In his undergraduate years, he obtained research experience in Professor Chun-hsien Chen’s group working on molecular electronics using mainly customized scanning tunneling microscopy, where he developed a strong interest in studying electron transport behavior in materials. He is looking forward to gaining insight on controlling electron flow in the Delor group. When not in the lab, he may be delocalized in NYC trying something new.


2019 - present

BA Chemistry and Global Health, 2015-2019

Washington University in St. Louis

Vicky grew up in Shenzhen, China with interests in music, oil-painting and fencing. She received her B.A. in Chemistry and Global Health from Washington University in St. Louis. Previously, she worked in Professor Sophia Hayes’ lab on solid-state NMR crystallography of CO2 mineralization products. In the Delor group, she works on ultrafast microscopy of semiconductor heterostructures and plasmonic superlattices.


2019 - present

BSc Chemistry, 2014-2019

Wuhan University

​Visiting researcher, North Carolina State University

Ding is from Zhejiang, a coastal province in eastern China. Raised in a handicraftsman family, he is good at woodwork, weaving, painting, and cooking. During senior high school, he became interested in chemistry, which answered his questions about the mechanics of daily phenomena, such as rice-made paste, swelling of fishnets, fermentation and so on. In college, he began to study the doping of two-dimensional materials (Fu group). He successfully synthesized a series of lanthanide-doped TMDs and studied how lanthanide modifies the optoelectronic and catalytic properties of TMDs. In 2018, he worked in the Dickey group as a visiting student, where he developed a method to prepare ultrathin metal oxide films at ambient environment. He is now a graduate student in the Chemistry Department of Columbia University.



2020 - present

NSF Graduate Research Fellow

BS Chemistry, BS Physics, 2016-2020

University of California, Los Angeles

Born in Tashkent, Uzbekistan, Jack spent most of his formative years across the United States, from Orlando, to Philadelphia, to glamorous Fresno. While he always enjoyed science, it wasn’t until freshman year at UCLA where he developed a serious interest (unhealthy obsession) in quantum mechanics and materials science when he discovered that it explained how day-to-day electronics functioned. His curiosity led to research in Sarah Tolbert’s lab, where he synthesized multiferroic nanocrystals for applications in memory devices. His interest in being able to "see" the submicron world led to work in the structural characterization of semiconducting polymers and, eventually, research in Naomi Ginsberg’s UC Berkeley lab on the self-assembly of rubrene spherulites. Jack is excited to return to the East Coast and is looking forward to finding a reliable food truck to fuel his neverending desire for cheap comfort food.


2020 - present

BS Chemistry, 2016-2020

University of Texas at Austin

Inki was born in South Korea and hails from Denton, Texas. He became interested in chemistry when he was in high school, and in college he began to enjoy studying physics and math. At UT Austin, he worked with Dr. Sean Roberts to investigate energy transfer from lead sulfide quantum dots to organic molecules using ultrafast spectroscopy. Although a large portion of his research consisted of synthesis and characterization, he particularly enjoyed studying light-matter interactions. Inki likes to watch Netflix in his free time, and he is excited to move to the Big Apple!



2021 - present

NSF Graduate Research Fellow

BS Materials Science, 2017-2021

Northwestern University

Paul was forged in the suburban wastelands of northern New Jersey, where he was always interested in science and engineering (yes, he did, in fact, go to science camp during the summer). He did his undergrad at Northwestern University near Chicago, where he studied materials science with a minor in art history, and worked as an undergraduate researcher under the mentorship of Mark Hersam and Emily Weiss. After first being exposed to spectroscopy in the Weiss lab, Paul thought it was pretty neat, so he came back to the Northeast for Columbia's chemical physics program. Outside of research, Paul loves music, movies, reading, and being beaten by his friends at chess.

Undergraduate Students



2021 - present

BA Biomedical Engineering, 2020-present

Columbia University

Rahawa is from Houston, Texas and is an undergraduate studying biomedical engineering and computer science. Her interest in chemistry began with her introduction to biochemistry in highschool. In the Delor group she is interested in the use of 2D materials in constructing scaffolds for tissue engineering. On campus, she is involved in "Let's Get Ready," mentoring highschool students through the college application process, and spends her free time watching movies and exploring cheap NYC restaurants.

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Summer 2022 (REU)

BS Physics, 2021-present

Howard University

Emma is from Kingston, Jamaica. She is an undergraduate at Howard University studying Physics with a double minor in Computer Science & Maths. She has always been interested in technical topics and says her interest in Physics started in high school. In the Delor Group she is interested in characteristics of 2D materials and microscopy. At Howard University, she is the events coordinator of the Physics club, captain of the Dance Club, a junior Resident Assistant, a HU Student Association Associate and volunteer member of the Ralph J. Bunche International center. Emma is an avid reader enjoying mainly fictional books, dancing and loves discovering new cultures through travel. When she is home in Jamaica, she spends time with her friends at parties, chasing her two dogs and can usually be found on Sundays at a white sandy beach with a good book.