High finesse optical cavity coupled with a quartz-enhanced photoacoustic spectroscopic sensor

The Analyst ◽  
2015 ◽  
Vol 140 (3) ◽  
pp. 736-743 ◽  
Author(s):  
Pietro Patimisco ◽  
Simone Borri ◽  
Iacopo Galli ◽  
Davide Mazzotti ◽  
Giovanni Giusfredi ◽  
...  
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Gas Sensing ◽  
Optical Cavity ◽  
Sensing System ◽  
System P ◽  
Sensor Platform ◽  
High Finesse ◽  
High Finesse Cavity

An ultra-sensitive quartz-enhanced photoacoustic spectroscopy combined with a high-finesse cavity sensor platform is proposed as a novel gas sensing system.

Mode matching of a laser-beam to a compact high finesse bow-tie optical cavity for quartz enhanced photoacoustic gas sensing

2017 ◽  
Vol 267 ◽  
pp. 70-75 ◽  
Author(s):  
Pietro Patimisco ◽  
Angelo Sampaolo ◽  
Frank K. Tittel ◽  
Vincenzo Spagnolo
Keyword(s):  
Laser Beam ◽  
Gas Sensing ◽  
Optical Cavity ◽  
Mode Matching ◽  
High Finesse ◽  
Bow Tie

Prism-based Broadband Optical Cavity (400 – 1600 nm) for High-Sensitivity Trace Gas Sensing by Cavity Enhanced Absorption Spectroscopy

2020 ◽  
Author(s):  
Weidong Chen ◽  
Gaoxuan Wang ◽  
Lingshuo Meng ◽  
Qian Gou ◽  
Azer Yalin ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Gas Sensing ◽  
Optical Cavity ◽  
Wavelength Region ◽  
High Sensitivity ◽  
Central Wavelength ◽  
Enhanced Absorption ◽  
High Reflectivity ◽  
Cavity Enhanced Absorption Spectroscopy ◽  
High Finesse

<p>The use of high reflectivity dielectric mirrors to form a high finesse optical cavity allows one to achieve long optical path lengths of up to several kilometres for high-sensitivity spectroscopy applications [1]. However, the high reflectivity of a dielectric mirror is achieved via constructive interference of the Fresnel reflection at the interfaces produced by multilayer coatings of alternate high and low refractive index materials. This wavelength-dependent coating limits the bandwidth of the mirror's high reflectivity to only a few percent of the designed central wavelength [2].</p><p>In this paper, we report on the development of a novel optical cavity based on prism used as cavity reflector through total internal reflection combined with Brewster angle incidence [3], which offers a high-finesse optical cavity operating in a broadband wavelength region from 400 to longer than 1600 nm. Cavity Enhanced Absorption Spectroscopy (CEAS) of NO<sub>2</sub>, NO<sub>3</sub>, and H<sub>2</sub>O vapor was applied to determine the achieved prism reflectivity over a broad spectral range from 400 nm to 1600 nm.</p><p>Experimental details and preliminary results will be presented. The developed prism-based cavity is specifically adapted for the needs of broadband measurement of multi-molecular absorber or/and wavelength-dependent extinction coefficient of aerosols over a broad spectral region.</p><p>Acknowledgments. This work is supported by the French national research agency (ANR) under the CaPPA (ANR-10-LABX-005), the MABCaM (ANR-16-CE04-0009) and the MULTIPAS (ANR-16-CE04-0012) contracts. The authors thank the financial support from the CPER CLIMIBIO program.</p><p>REFERENCES</p><p>[1] S. S. Brown, "Absorption spectroscopy in high-finesse cavities for atmospheric studies", Chem. Rev. <strong>103</strong> (2003) 5219-5238.</p><p>[2] G.R. Fowles, Introduction to Modern Optics, 2nd ed. (Rinehart and Winston, 1975), p. 328.</p><p>[3] B. Lee, K. Lehmann, J. Taylor and A. Yalin, "A high-finesse broadband optical cavity using calcium fluoride prism retroreflectors", Opt. Express <strong>2</strong><strong>2</strong> (2014) 11583-11591.</p>

scholarly journals iHEART: a miniaturized near-infrared in-line gas sensor using heart-shaped substrate-integrated hollow waveguides

The Analyst ◽  
2016 ◽  
Vol 141 (18) ◽  
pp. 5298-5303 ◽  
Author(s):  
Rafael L. Ribessi ◽  
Thiago de A. Neves ◽  
Jarbas J. R. Rohwedder ◽  
Celio Pasquini ◽  
Ivo M. Raimundo ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Near Infrared ◽  
Gas Sensing ◽  
Hollow Waveguide ◽  
Hollow Waveguides ◽  
Sensing System

Integration of a heart-shaped substrate-integrated hollow waveguide with a micro-spectrometer results in an ultra-compact gas sensing system: iHEART.

High finesse pulsed optical cavity locking by tilt-locking technique

2014 ◽  
Vol 85 (3) ◽  
pp. 033102 ◽  
Author(s):  
Y. You ◽  
R. Chiche ◽  
L. X. Yan ◽  
W. H. Huang ◽  
C. X. Tang ◽  
...  
Keyword(s):  
Optical Cavity ◽  
High Finesse

Radiation-pressure effects upon a micromirror in a high-finesse optical cavity

2008 ◽  
Author(s):  
A. Heidmann ◽  
O. Arcizet ◽  
C. Molinelli ◽  
T. Briant ◽  
P.-F. Cohadon
Keyword(s):  
Radiation Pressure ◽  
Optical Cavity ◽  
Pressure Effects ◽  
High Finesse

Theory of a far-off resonance mode-locked Raman laser in H_2 with high finesse cavity enhancement

2007 ◽  
Vol 24 (9) ◽  
pp. 2055 ◽  
Author(s):  
Yihan Xiong ◽  
Sytil Murphy ◽  
J. L. Carlsten ◽  
Kevin Repasky
Keyword(s):  
Raman Laser ◽  
Resonance Mode ◽  
High Finesse ◽  
High Finesse Cavity

An extended functional network model and its application for a gas sensing system

2012 ◽  
Vol 17 (5) ◽  
pp. 897-908 ◽  
Author(s):  
G. Acampora ◽  
M. Gaeta ◽  
S. Tomasiello
Keyword(s):  
Network Model ◽  
Gas Sensing ◽  
Functional Network ◽  
Sensing System
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