Photonic crystal microring resonators for Raman signal enhancement in NIR spectral range

Muhammad Mahmudul Hasan; Adam Legacy; Nezih Pala

doi:10.1117/12.2665530

15 June 2023 Photonic crystal microring resonators for Raman signal enhancement in NIR spectral range

Muhammad Mahmudul Hasan, Adam Legacy, Nezih Pala

Proceedings Volume 12516, Next-Generation Spectroscopic Technologies XV; 125160G (2023) https://doi.org/10.1117/12.2665530
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

We report on a compact, on-chip, and inexpensive Raman spectrometer platform that provides 6 orders of magnitude enhancement of Raman signal in the near-IR spectral range of 0.7-1.2μm with a laser excitation of 785 nm. It is based on microring resonators integrated with sinusoidal photonic crystal (MRR-SPC) both in the ring-resonator and in the bus waveguide. A low-loss Si₃N₄ waveguide is chosen to meet the requirements of high index contrast and ultracompact design. The proposed MRR-SPC can find its applications in bio/chemical ware fare sensing, chemical sensing, lab-on-a-chip systems for mobile and portable devices.

Conference Presentation

Citation Download Citation

Muhammad Mahmudul Hasan, Adam Legacy, and Nezih Pala "Photonic crystal microring resonators for Raman signal enhancement in NIR spectral range", Proc. SPIE 12516, Next-Generation Spectroscopic Technologies XV, 125160G (15 June 2023); https://doi.org/10.1117/12.2665530

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