Detection of photoacoustic waves in liquids by fibre optic interferometry
| Autor: | Hugh A. MacKenzie, Tom Carolan, P. Hodgson, K.M. Quan, Duncan Paul Hand, Julian D. C. Jones |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Photoacoustic effect
Materials science Optical fiber business.industry System of measurement Physics::Optics Photoacoustic imaging in biomedicine Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Interferometry Optics Amplitude Absolute measurement law Electrical and Electronic Engineering Physical and Theoretical Chemistry business |
| Zdroj: | Heriot-Watt University |
| ISSN: | 0030-4018 |
| Popis: | A Michelson-based fibre optic interferometer was used to make absolute measurements of the sub-nanometer liquid surface displacements created by the photoacoustic process. This measurement system is both broad-band and non-contacting. Photoacoustic waves, generated using pulses from a Nd: YAG laser operating at 1.06 μm, were measured in methanol, water, and various concentration mixtures. The wave amplitude demonstrated a quadratic relationship with concentration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|