| Autor: |
Makles, K., Antoni, T., Kuhn, A. G., Deléglise, S., Briant, T., Cohadon, P. F., Braive, R., Beaudoin, G., Pinard, L., Michel, C., Dolique, V., Flaminio, R., Cagnoli, G., Robert-Philip, I., Heidmann, A. |
| Rok vydání: |
2014 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1364/OL.40.000174 |
| Popis: |
We present the optical optimization of an optomechanical device based on a suspended InP membrane patterned with a 2D near-wavelength grating (NWG) based on a 2D photonic-crystal geometry. We first identify by numerical simulation a set of geometrical parameters providing a reflectivity higher than 99.8 % over a 50-nm span. We then study the limitations induced by the finite value of the optical waist and lateral size of the NWG pattern using different numerical approaches. The NWG grating, pierced in a suspended InP 265 nm-thick membrane, is used to form a compact microcavity involving the suspended nano-membrane as end mirror. The resulting cavity has a waist size smaller than 10 $\mu$m and a finesse in the 200 range. It is used to probe the Brownian motion of the mechanical modes of the nanomembrane. |
| Databáze: |
arXiv |
| Externí odkaz: |
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