Enhancement of acoustic-wave induced reflection changes through surface plasmon polaritons
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| Publication date | 2022 |
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| Book title | Metrology, Inspection, and Process Control XXXVI |
| Book subtitle | 24-28 April 2022, San Jose, California, United States, 23-27 May 2022, online |
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| Series | Proceedings of SPIE - The International Society for Optical Engineering |
| Event | Metrology, Inspection, and Process Control XXXVI 2022 |
| Article number | 1205305 |
| Number of pages | 6 |
| Publisher | Bellingham, WA: SPIE |
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| Abstract |
We report on enhanced detection of strain waves in gold gratings, using a probe laser pulse tuned at and close to the surface plasmon-polariton (SPP) resonance of the gratings. The enhancement, of up to twenty times, is observed in the strain-wave-induced reflection changes and depends on the type of acoustic wave. For the surface acoustic wave, the enhancement of the optical reflection is greatest at the peak of the resonance, while strain-wave-induced reflection changes of other types of strain waves show their strongest enhancement when the probe pulse is tuned to the wings of the SPP resonance. |
| Document type | Conference contribution |
| Language | English |
| Published at | https://doi.org/10.1117/12.2614383 |
| Other links | https://www.scopus.com/pages/publications/85135773540 |
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