Aliev, G. N., Goller, B., Kovalev, D. and Snow, P. A., 2010. Hypersonic acoustic mirrors and microcavities in porous silicon. Applied Physics Letters, 96 (12), 124101.
Periodic solid state structures exhibit transmission stop bands for waves of certain frequencies. We report the realization and direct measurement of acoustic band gaps in porous silicon multilayer structures which exhibit similar to 50 dB stop bands for longitudinal acoustic waves in the gigahertz range. Furthermore, realization of an acoustic microcavity structure in porous silicon is demonstrated.
|Item Type ||Articles|
|Creators||Aliev, G. N., Goller, B., Kovalev, D. and Snow, P. A.|
|Uncontrolled Keywords||acoustic wave transmission, elemental semiconductors, porous semiconductors, optical multilayers, integrated optics, micro-optics, microcavities, silicon, distributed bragg reflectors|
|Departments||Faculty of Science > Physics|
|Research Centres||Centre for Photonics and Photonic Materials|
|Publisher Statement||Hypersonic_Acoustic_Mirrors_in_porous_silicon_ApplPhysLett_96_124101.pdf: Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Aliev, G. N., Goller, B., Kovalev, D. and Snow, P., 2010. Hypersonic acoustic mirrors and microcavities in porous silicon. Applied Physics Letters, 96, 124101, and may be found at http://dx.doi.org/10.1063/1.3367747|
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