Valle, S., Ward, J.D., Pannell, C. and Johnson, N.P. (2015) Acousto-optic tunable filters for imaging applications in the 2-4~μm with low RF drive power. Acta Physica Polonica A, 127(1), pp. 58-59. (doi: 10.12693/APhysPolA.127.58)
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Abstract
The λ2 dependence on acoustic field intensity (and hence RF drive power) can render large aperture acousto-optic tunable filters impractical for many applications beyond about 2 μm. One potential technique for reducing the RF drive-power requirement is to configure an acousto-optic tunable filter such that the interaction region is at acoustic resonance. We describe an acousto-optic tunable filter that operates at resonance and present an analysis of the predicted performance. In addition, we address the practical issues in deploying such a scheme. Finally, we present results of a prototype "resonant acousto-optic tunable filter" operating in the 1-2 μm region.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Johnson, Dr Nigel |
| Authors: | Valle, S., Ward, J.D., Pannell, C., and Johnson, N.P. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Acta Physica Polonica A |
| Publisher: | Polska Akademia Nauk |
| ISSN: | 0587-4246 |
| ISSN (Online): | 1898-794X |
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