NDLI: Designs of photonic crystal nanocavities for stimulated Raman scattering in diamond

Content Provider	Springer Nature Link
Author	Liu, Qiang Ouyang, Zhengbiao Albin, Sacharia
Copyright Year	2013
Abstract	Diamond is a good candidate for producing Raman laser due to its high first-order Raman gain coefficient. Since its Raman shift (~1,332.5 cm−1) is large compared to other solid-state materials, it is possible to produce a Raman frequency converter using diamond crystals. Photonic crystals can be employed for confining photons within periodic structures, the scale of which is on the order of the incident wavelength, making it convenient for integrating all-optical circuits. Combining the merits of both diamond and photonic crystals, we present two designs of photonic crystal nanocavities (in hexagonal and square lattice structures) which can produce stimulated Raman lasing with low-threshold power. After optimizing the photonic bandgaps, triple resonant modes with high Q and small modal volume are realized in each design by tuning the radii of dot defects in the nanocavities. Numerical simulations show that for such designs, the threshold power for generating Raman lasers in the range of a few hundred nano-Watts can be achieved.
Starting Page	457
Ending Page	462
Page Count	6
File Format	PDF
ISSN	09462171
Journal	Applied Physics B
Volume Number	113
Issue Number	3
e-ISSN	14320649
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-05-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics Physical Chemistry Laser Technology, Photonics Quantum Optics Optics, Optoelectronics, Plasmonics and Optical Devices Engineering
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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