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Abstract
Periodic solid state structures exhibit transmission stopbands for waves of certain frequencies. We demonstrate porous silicon based rugate filters with 40 dB rejection first-order stopbands for longitudinal acoustic waves at hypersonic frequencies and the predicted suppression of higher order bands.
| Original language | English |
|---|---|
| Article number | 173503 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 97 |
| Issue number | 17 |
| Early online date | 24 Oct 2010 |
| DOIs | |
| Publication status | Published - 25 Oct 2010 |
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Dive into the research topics of 'Hypersonic rugate filters based on porous silicon'. Together they form a unique fingerprint.Projects
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SOUND-LIGHT INTERACTIONS IN SPATIALLY PERIOD NANOPOROUS SILI CON STRUCTURES
Snow, P. (PI), Birks, T. (CoI) & Russell, P. S. (CoI)
Engineering and Physical Sciences Research Council
5/09/05 → 4/02/10
Project: Research council