Abstract
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 nanomembrane as an end mirror. The resulting cavity has a waist size smaller than 10 μm and a finesse in the 200 range. It is used to probe the Brownian motion of the mechanical modes of the nanomembrane.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Thomas Antoni, Aurélien G. Kuhn, Tristan Briant, Pierre-François Cohadon, Antoine Heidmann, Rémy Braive, Alexios Beveratos, Izo Abram, Luc Le Gratiet, Isabelle Sagnes, and Isabelle Robert-Philip
Opt. Lett. 36(17) 3434-3436 (2011)
Georg Enzian, Zihua Wang, Anders Simonsen, Jonas Mathiassen, Toke Vibel, Yeghishe Tsaturyan, Alexander Tagantsev, Albert Schliesser, and Eugene S. Polzik
Opt. Express 31(8) 13040-13052 (2023)
M. Kalaee, T. K. Paraïso, H. Pfeifer, and O. Painter
Opt. Express 24(19) 21308-21328 (2016)