Photonic crystal microring resonators for Raman signal enhancement in NIR spectral range
Conference
Hasan, MM, Legacy, A, Pala, N. (2023). Photonic crystal microring resonators for Raman signal enhancement in NIR spectral range
. Proceedings of SPIE - The International Society for Optical Engineering, 12516 10.1117/12.2665530
Hasan, MM, Legacy, A, Pala, N. (2023). Photonic crystal microring resonators for Raman signal enhancement in NIR spectral range
. Proceedings of SPIE - The International Society for Optical Engineering, 12516 10.1117/12.2665530
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.
