| Authors: | J. Van Campenhout, P. Bienstman, R. Baets | | Title: | Band-Edge Lasing in Gold-Clad Photonic-Crystal Membranes | | Format: | International Journal | | Publication date: | 7/2005 | | Journal/Conference/Book: | IEEE Journal on Selected Areas in Communications
| | Editor/Publisher: | IEEE, | | Volume(Issue): | 23(7) p.1418-1423 | | DOI: | 10.1109/jsac.2005.851160 | | Citations: | 7 (Dimensions.ai - last update: 17/11/2024)
6 (OpenCitations - last update: 3/5/2024)
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Abstract
We investigate the possibility to achieve band-edge
lasing in optically thick gold-clad photonic-crystal membranes,
with a dielectric thickness of around 1 µm. We have performed
a two-dimensional eigenmode-expansion analysis of bandedge
resonators in one-dimensional photonic crystals. Material
thresholds, quality factors and emission efficiencies have been
calculated for TE band-edge laser resonances on the second and
third Gamma-point. The second Gamma-point sustains band-edge laser modes
with quality factors above 2500 for a membrane thickness of
1 µm and a cavity length of 20 periods, however with a very
poor surface-emission efficiency. Band-edge laser modes located
on the third Gamma-point have lower quality factors but higher surfaceemission
efficiencies. In both cases, the photonic crystal should
be designed specifically to avoid coupling with lossy, higher order
modes. Related Research Topics
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