Document Type
Article
Publication Date
2011
DOI
10.1364/OE.19.004795
Publication Title
Optics Express
Volume
19
Issue
5
Pages
4795-4804
Abstract
We propose coupled cavities to realize a strong enhancement of the Raman scattering. Five sub cavities are embedded in the photonic crystals. Simulations through finite-difference time-domain (FDTD) method demonstrate that one cavity, which is used to propagate the pump beam at the optical-communication wavelength, has a Q factor as high as 1.254 × 108 and modal volume as small as 0.03μm3 (0.3192(λ/n)3). These parameters result in ultra-small threshold lasing power ~17.7nW and 2.58nW for Stokes and anti-Stokes respectively. The cavities are designed to support the required Stokes and anti-Stokes modal spacing in silicon. The proposed structure has the potential for sensor devices, especially for biological and medical diagnoses.
Original Publication Citation
Liu, Q., Ouyang, Z., & Albin, S. (2011). Coupled photonic crystal micro-cavities with ultra-low threshold power for stimulated raman scattering. Optics Express, 19(5), 4795-4804. doi:10.1364/OE.19.004795
Repository Citation
Liu, Qiang; Ouyang, Zhengbiao; and Albin, Sacharia, "Coupled Photonic Crystal Micro-Cavities With Ultra-Low Threshold Power For Stiumulated Raman Scattering" (2011). Electrical & Computer Engineering Faculty Publications. 173.
https://digitalcommons.odu.edu/ece_fac_pubs/173
Comments
"Optics Express, Optical Materials Express, Biomedical Optics Express, Optica, and OSA Continuum are all open access journals, which means that all content is freely available without charge to the user or his/her institution. Beginning in September 2017, users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access."