High- Q transverse-electric/transverse-magnetic photonic crystal nanobeam cavities
We experimentally demonstrate high quality factor dual-polarized photonic crystal nanobeam cavities. The free-standing nanobeams are fabricated in a 500 nm thick silicon layer, and are probed using both tapered optical fiber and free-space resonant scattering set-ups. We measure Q factors greater th...
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| Veröffentlicht in: | Applied physics letters 2011-03, Vol.98 (11), p.111117-111117-3 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We experimentally demonstrate high quality factor dual-polarized photonic crystal nanobeam cavities. The free-standing nanobeams are fabricated in a 500 nm thick silicon layer, and are probed using both tapered optical fiber and free-space resonant scattering set-ups. We measure
Q
factors greater than
10
4
for both transverse magnetic (TM) and transverse electric modes, and observe fiber transmission drops as large as
1
−
T
=
0.8
at the TM mode resonances. |
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| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.3568897 |