| Autor: |
Schönenberger S; IBM Research GmbH, Zurich Research Laboratory, Säumerstrasse 4, 8803 Rüschlikon, Switzerland. yso@zurich.ibm.com, Moll N, Stöferle T, Mahrt RF, Offrein BJ, Götzinger S, Sandoghdar V, Bolten J, Wahlbrink T, Plötzing T, Waldow M, Först M |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2009 Apr 13; Vol. 17 (8), pp. 5953-64. |
| DOI: |
10.1364/oe.17.005953 |
| Abstrakt: |
We demonstrate the suitability of microcavities based on circular grating resonators (CGRs) as fast switches. This type of optical resonator is characterized by a high quality factor and very small mode volume. The waveguide-coupled CGRs are fabricated with silicon-on-insulator technology compatible with standard complementary metal-oxide semiconductor (CMOS) processing. The linear optical properties of the CGRs are investigated by transmission spectroscopy. From 3D finite-difference time-domain simulations of isolated CGRs, we identify the measured resonances. We probe the spatial distribution and the parasitic losses of a resonant optical mode with scanning near-field optical microscopy. We observe fast all-optical switching within a few picoseconds by optically generating free charge carriers within the cavity. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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