Generation of vector beams by spatially modulated photonic-crystal lasers

Kyoko Kitamura; Seira Kotera; Susumu Noda

doi:10.1117/12.2659059

8 December 2022 Generation of vector beams by spatially modulated photonic-crystal lasers

Kyoko Kitamura, Seira Kotera, Susumu Noda

Proceedings Volume 12479, Optical Manipulation and Structured Materials Conference (OMC 2022); 124790T (2022) https://doi.org/10.1117/12.2659059
Event: Optics and Photonics International Congress, 2022, Yokohama, Japan

Abstract

Laser beams with spatially controlled cross-sectional polarization distributions, called vector beams, have attracted much attention for their ability to be focused to dimensions below the diffraction limit. Here, we realize a single-chip vector beam generator that does not require any external optical elements. This generator consists of modulated photonic-crystal lasers (M-PCSELs) whose photonic-crystal lattice-point positions are spatially modulated to produce vertical diffraction of the two-dimensional lasing mode with various polarization distributions. By designing the modulation, we show that M-PCSEL can generate arbitrary cylindrically polarized vector beams.

Citation Download Citation

Kyoko Kitamura, Seira Kotera, and Susumu Noda "Generation of vector beams by spatially modulated photonic-crystal lasers", Proc. SPIE 12479, Optical Manipulation and Structured Materials Conference (OMC 2022), 124790T (8 December 2022); https://doi.org/10.1117/12.2659059

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