Strauf, S. et al. (2006) Frequency control of photonic crystal membrane resonators by monolayer deposition. Applied Physics Letters, 88(4), 043116. (doi: 10.1063/1.2164922)
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Abstract
We study the response of GaAs photonic crystal membrane resonators to thin-film deposition. Slow spectral shifts of the cavity mode of several nanometers are observed at low temperatures, caused by cryo-gettering of background molecules. Heating the membrane resets the drift and shielding will prevent drift altogether. In order to explore the drift as a tool to detect surface layers, or to intentionally shift the cavity resonance frequency, we studied the effect of self-assembled monolayers of polypeptide molecules attached to the membranes. The 2-nm-thick monolayers lead to a discrete step in the resonance frequency and partially passivate the surface.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Badolato, Professor Antonio |
| Authors: | Strauf, S., Rakher, M.T., Carmeli, I., Hennessy, K., Meier, C., Badolato, A., DeDood, M.J.A., Petroff, P.M., Hu, E.L., Gwinn, E.G., and Bouwmeester, D. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Applied Physics Letters |
| Publisher: | AIP Publishing |
| ISSN: | 0003-6951 |
| ISSN (Online): | 1077-3118 |
| Published Online: | 27 January 2006 |
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