Share Email Print
cover

Proceedings Paper

Trace gas sensing using quantum cascade lasers and optoacoustic detection
Author(s): Vincenzo Spagnolo; Angela Elia; Cinzia Di Franco; Pietro Mario Lugarà; Miriam S. Vitiello; Gaetano Scamarcio
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We report on the realization of a optoacoustic sensor based on mid-infrared quantum-cascade lasers (QCLs) for the detection of nitric oxide (NO) and formaldehyde (CH2O). A resonant photoacoustic cell equipped with 4 electret microphones was excited in its first longitudinal mode by the modulated laser light. A detection limit for of 300 parts in 109 (ppbv) for NO and 150 ppbv for CH2O is found, using distributed feedback QCLs operating in pulsed mode at 5.34 μm and 5.6 μm, respectively.

Paper Details

Date Published: 26 January 2009
PDF: 9 pages
Proc. SPIE 7222, Quantum Sensing and Nanophotonic Devices VI, 72220K (26 January 2009); doi: 10.1117/12.813678
Show Author Affiliations
Vincenzo Spagnolo, Univ. degli Studi di Bari (Italy)
Politecnico di Bari (Italy)
CNR-INFM Regional Lab. LIT3 (Italy)
Angela Elia, Univ. degli Studi di Bari (Italy)
Politecnico di Bari (Italy)
CNR-INFM Regional Lab. LIT3 (Italy)
Cinzia Di Franco, CNR-INFM Regional Lab. LIT3 (Italy)
Pietro Mario Lugarà, Univ. degli Studi di Bari (Italy)
Politecnico di Bari (Italy)
CNR-INFM Regional Lab. LIT3 (Italy)
Miriam S. Vitiello, Univ. degli Studi di Bari (Italy)
Politecnico di Bari (Italy)
CNR-INFM Regional Lab. LIT3 (Italy)
Gaetano Scamarcio, Univ. degli Studi di Bari (Italy)
Politecnico di Bari (Italy)
CNR-INFM Regional Lab. LIT3 (Italy)


Published in SPIE Proceedings Vol. 7222:
Quantum Sensing and Nanophotonic Devices VI
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

© SPIE. Terms of Use
Back to Top