Light source for coherent Raman scattering based on spontaneous four-wave mixing in silicon nitride waveguides (Conference Presentation)

Niklas M. Lüpken; Thomas Würthwein; Jörn P. Epping; Klaus-Jochen Boller; Carsten Fallnich

doi:10.1117/12.2566479

10 March 2020 Light source for coherent Raman scattering based on spontaneous four-wave mixing in silicon nitride waveguides (Conference Presentation)

Niklas M. Lüpken, Thomas Würthwein, Jörn P. Epping, Klaus-Jochen Boller, Carsten Fallnich

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Proceedings Volume 11252, Advanced Chemical Microscopy for Life Science and Translational Medicine; 112520B (2020) https://doi.org/10.1117/12.2566479
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Silicon nitride waveguides offer a high nonlinear refractive index and tight mode confinement, ideal for efficient four-wave mixing (FWM) processes. We present a light source for coherent anti-Stokes Raman scattering (CARS), with the potential to be set up as an all-integrated device, based on spontaneous FWM in silicon nitride waveguides with only a single ultrafast fiber-based pump source at 1030 nm wavelength. Broadband signal and idler pulses are generated with only 5 nJ input pulse energy, such that the idler and residual pump pulses can be used for CARS measurements, enabling chemically-selective and label-free imaging over the entire fingerprint region.

Conference Presentation

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Niklas M. Lüpken, Thomas Würthwein, Jörn P. Epping, Klaus-Jochen Boller, and Carsten Fallnich "Light source for coherent Raman scattering based on spontaneous four-wave mixing in silicon nitride waveguides (Conference Presentation)", Proc. SPIE 11252, Advanced Chemical Microscopy for Life Science and Translational Medicine, 112520B (10 March 2020); https://doi.org/10.1117/12.2566479

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KEYWORDS

Waveguides

Silicon

Four wave mixing

Light sources

Raman scattering

CARS tomography

Electronic filtering

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