The Department of Physics at Columbia University invites applications for a position at the rank of Associate Research Scientist. The position requires a PhD degree in Physics or a related field, and 3+ years experience. Potential research topics include research in nano-optical phenomena of two-dimensional quantum materials using novel nano-optical systems. Suitable candidates will conduct research in nano-optical phenomena of two-dimensional quantum materials using novel nano-optical systems; design, fabricate and assemble a cryogenic nano-optical system coupled to ultrafast lasers; manage a variety of collaborations with academic national labs and contract research organizations; and will mentor undergraduate and graduate students. The successful candidate will participate in