Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Sensors 2010, 10(7), 6612-6622; doi:10.3390/s100706612
Article

An Efficient and Compact Difference-Frequency-Generation Spectrometer and Its Application to 12CH3D/12CH4 Isotope Ratio Measurements

1,2,* , 2,3
, 2,3
 and 1,2
Received: 4 February 2010; in revised form: 28 April 2010 / Accepted: 7 June 2010 / Published: 9 July 2010
(This article belongs to the Special Issue Laser Spectroscopy and Sensing)
View Full-Text   |   Download PDF [314 KB, uploaded 21 June 2014]   |   Browse Figures
Abstract: We have developed an efficient and compact 3.4 μm difference-frequency-generation spectrometer using a 1.55 μm distributed feedback (DFB) laser diode, a 1.06 μm DFB laser diode, and a ridge-waveguide periodically poled lithium niobate. It is continuously tunable in the 30 cm–1 span and is applied to 12CH3D/12CH4 isotope ratio measurements. The suitable pair of 12CH3D n4 pP(7,6) and 12CH4 ν24 R(6) F1(1) lines enabled us to determine their isotope ratio with a precision repeatability of 0.8‰ using a sample and a working standard of pure methane with an effective signal averaging time of 100 ms.
Keywords: isotope ratio; methane; laser spectroscopy; difference frequency generation; waveguide PPLN isotope ratio; methane; laser spectroscopy; difference frequency generation; waveguide PPLN
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Tsuji, K.; Teshima, H.; Sasada, H.; Yoshida, N. An Efficient and Compact Difference-Frequency-Generation Spectrometer and Its Application to 12CH3D/12CH4 Isotope Ratio Measurements. Sensors 2010, 10, 6612-6622.

AMA Style

Tsuji K, Teshima H, Sasada H, Yoshida N. An Efficient and Compact Difference-Frequency-Generation Spectrometer and Its Application to 12CH3D/12CH4 Isotope Ratio Measurements. Sensors. 2010; 10(7):6612-6622.

Chicago/Turabian Style

Tsuji, Kiyoshi; Teshima, Hiroaki; Sasada, Hiroyuki; Yoshida, Naohiro. 2010. "An Efficient and Compact Difference-Frequency-Generation Spectrometer and Its Application to 12CH3D/12CH4 Isotope Ratio Measurements." Sensors 10, no. 7: 6612-6622.



Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert