Alq3 coated silicon nanomembranes for cavity optomechanics

Francesco Fogliano; Antonio Ortu; Andrea Camposeo; Dario Pisignano; Donatella Ciampini; Francesco Fuso; E. Arimondo

doi:10.1117/12.2235276

16 September 2016 Alq₃ coated silicon nanomembranes for cavity optomechanics

Francesco Fogliano, Antonio Ortu, Andrea Camposeo, Dario Pisignano, Donatella Ciampini, Francesco Fuso, E. Arimondo

Proceedings Volume 9922, Optical Trapping and Optical Micromanipulation XIII; 99220G (2016) https://doi.org/10.1117/12.2235276
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

The optomechanical properties of a silicon-nitride membrane mirror covered by Alq₃ and Silver layers are investigated. Excitation at two laser wavelengths, 780 and 405 nm, corresponding to different absorptions of the multilayer, is examined. Such dual driving will lead to a more flexible optomechanical operation. Topographic reconstruction of the whole static membrane deformation and cooling of the membrane oscillations are reported. The cooling, observed for blue laser detuning and produced by bolometric forces, is deduced from the optomechanical damping of the membrane eigenfrequency. We determine the presence of different contributions to the photothermal response of the membrane.

Conference Presentation

Citation Download Citation

Francesco Fogliano, Antonio Ortu, Andrea Camposeo, Dario Pisignano, Donatella Ciampini, Francesco Fuso, and E. Arimondo "Alq₃ coated silicon nanomembranes for cavity optomechanics", Proc. SPIE 9922, Optical Trapping and Optical Micromanipulation XIII, 99220G (16 September 2016); https://doi.org/10.1117/12.2235276

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