106 citations · 221 across the 8 of their papers we have counts for
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Chip-scale sub-Doppler atomic spectroscopy enabled by a metasurface integrated photonic emitter
Alexander Yulaev, Chad Ropp, John Kitching +2
We demonstrate chip-scale sub-Doppler spectroscopy in an integrated and fiber-coupled photonic-metasurface device. The device is a stack of three planar components: a photonic mode…
Scalable and Robust Beam Shaping Using Apodized Fish-bone Grating Couplers
Chad Ropp, Dhriti Maurya, Alexander Yulaev +3
Efficient power coupling between on-chip guided and free-space optical modes requires precision spatial mode matching with apodized grating couplers. Yet, grating apodizations are…
Exceptional points in lossy media enable decay-free wave propagation
Alexander Yulaev, Sangsik Kim, Qing Li +4
Waves entering a spatially uniform lossy medium typically undergo exponential decay, arising from either the energy loss of the Beer-Lambert-Bouguer transmission law or the evanesc…
Surface-Normal Free-Space Beam Projection via Slow-Light Standing Wave Resonances in Extra-Large Near-Zero Index Grating Couplers
Alexander Yulaev, Daron A. Westly, Vladimir A. Aksyuk
On-chip grating couplers directly connect photonic circuits to free-space light. The commonly used photonic gratings have been specialized for small areas, specific intensity profi…