Natalia M. Litchinitser

Natalia M. Litchinitser is an Electrical Engineer and Professor at Duke University. She works on optical metamaterials and their application in photonic devices. Litchinitser is a Fellow of the American Physical Society, The Optical Society and the Institute of Electrical and Electronics Engineers.

Early life and education Litchinitser was born in Russia. She earned her undergraduate degree in physics at the Moscow State University. She moved to the United States for her graduate studies and she joined the Illinois Institute of Technology. Her doctoral research considered Fiber Bragg grating filters for the compensation of dispersion. In 1997 Litchinitser joined the Institute of Optics in Rochester, New York, where she was made a postdoctoral research fellow. She joined Bell Labs at the same time that the field of metamaterials was emerging, and switched her focus on the theoretical properties of metamaterials that manipulate the visible portion of the electromagnetic spectrum. In 2005 Litchinitser moved to the University of Michigan.

Research and career In 2008 Litchinitser was made an Assistant Professor of Optics at the State University of New York, and was promoted to Associate Professor in 2011. She moved to Duke University in 2018. Her research focuses on metamaterials and topological photonics. Metamaterials are artificial structures that manipulate waves using a carefully controlled nanostructure as opposed to chemistry. These shaped beams (rather than the typical 'circular' beam, a beam that is shaped more like a vortex) of light allow access to otherwise forbidden higher-order spectroscopic transitions. Circularly polarised light involves an electric field that rotates around the direction of propagation, such that the photons carry spin angular momentum. When spin-orbit interactions are controlled, spin angular momentum can be converted into orbital angular momentum. Orbital angular momentum (or vortex beams) can make symmetry-forbidden transitions possible, with a transition rate that increases when the size of the beam decreases. The detector makes use of a photodetector that is responsive to orbital angular momentum modes.

Topological photonics looks to navigate light around tight corners using tiny waveguides that eliminate the scattering of light. To achieve this, Litchinitser designed crystal lattices with carefully controlled geometries, which allow light to travel perfectly across their surfaces but block it from travelling through the interior. At the 2020 SPIE Optics and Photonics conference Litchinitser chaired the session on Nanoscience and Engineering.

Awards and honours

2011 Elected Fellow of The Optical Society 2014 Elected Fellow of the American Physical Society 2026 Elected IEEE Fellow

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