Demonstration of miniature all-optical photoacoustic spectrometer based on ferrule-top technology
| Autor: | J.H. Rector, Davide Iannuzzi, K. Heeck, G.L. Gruca |
|---|---|
| Přispěvatelé: | LaserLaB - Biophotonics and Microscopy, Biophotonics and Medical Imaging |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Time delay and integration
Optical fiber Materials science Physics::Optics 02 engineering and technology 01 natural sciences law.invention Physics::Geophysics 010309 optics Optics law 0103 physical sciences SDG 7 - Affordable and Clean Energy Spectrometer business.industry Ferrule 021001 nanoscience & nanotechnology Laser Pressure sensor Atomic and Molecular Physics and Optics Computer Science::Other Interferometry Transducer 0210 nano-technology business |
| Zdroj: | Optics Letters Gruca, G L, Heeck, K, Rector, J H & Iannuzzi, D 2013, ' Demonstration of a miniature all-optical photoacoustic spectrometer based on ferrule-top technology ', Optics Letters, vol. 38, no. 10, pp. 1672-1674 . https://doi.org/10.1364/OL.38.001672 Optics Letters, 38(10), 1672-1674. The Optical Society |
| ISSN: | 0146-9592 |
| DOI: | 10.1364/OL.38.001672 |
| Popis: | We present a miniaturized photoacoustic (PA) spectrometer obtained by carving a micromachined flexural pressure transducer directly at the top of a glass ferrule. The ferrule is equipped with two optical fibers, one for laser excitation of the gas and one for interferometric readout of the transducer. To demonstrate the working principle and assess the sensitivity of the device, we performed a set of measurements of C2H2 traces in an Ar buffer atmosphere. The data acquired show that our ferrule-top scheme allows one to increase the minimum detectable concentration by more than one order of magnitude with respect to the other miniaturized PA spectrometers reported in the literature, while decreasing the integration time by a factor of 10. |
| Databáze: | OpenAIRE |
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