2024-03-28T18:25:10Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1813212022-12-21T08:33:40Zcom_10261_36com_10261_4col_10261_289
DIGITAL.CSIC
author
Pini, Valerio
author
Ramos Vega, Daniel
author
Domínguez, Carmen M.
author
Ruz Martínez, José Jaime
author
Malvar, Óscar
author
Kosaka, Priscila M.
author
Davis, Zachary James
author
Tamayo de Miguel, Francisco Javier
author
Calleja, Montserrat
funder
Ministerio de Economía y Competitividad (España)
funder
European Commission
2019-05-13T15:23:01Z
2019-05-13T15:23:01Z
2017-11
Microelectronic Engineering 183–184(5): 37-41 (2017)
0167-9317
http://hdl.handle.net/10261/181321
10.1016/j.mee.2017.10.008
http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100003329
Free-standing dielectric structures with a substrate underneath, as the SiN microdrums studied here, are the basis of optomechanical devices. Optimization of the optomechanical coupling is demanding in order to enhance the performance of these devices. The optomechanical coupling in the case of drum resonators critically depends on the thickness of the drum, the surface stress, the cavity length and the wavelength. Here, we develop a methodology that combines spatially multiplexed microspectrophotometry, optical modelling of the cavity and finite element method simulation of the mechanical eigenmodes that enables obtaining the properties of the optomechanical cavity and predicting the wavelength that optimizes the optomechanical coupling. By choosing this illumination wavelength we are able to spatially resolve the thermal motion of the microdrums up to the fourth mechanical mode ~ 20 MHz. The presented study opens the door for further optimization pathways for optomechanical detection and actuation.
eng
openAccess
Optomechanics
Optical cavities
Nanomechanics
Microspectrophotometry
Optimization of the readout of microdrum optomechanical resonators
artículo
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URL
https://digital.csic.es/bitstream/10261/181321/3/Optimization%20of%20the%20readout_Pini.pdf
File
MD5
f5006a966ac71495aba59f6bae8590b4
722299
application/pdf
Optimization of the readout_Pini.pdf