Abstract
We have developed a sub-Doppler-resolution spectrometer tunable in the 3.4 μm region on the basis of difference frequency generation and an enhancement cavity cell. The spectrometer has allowed us to record the Lamb dips of the V3 fundamental band of methane even with an IR power level of 3.9 μW, and the linewidth of the Lamb dips can be as narrow as 0.33 MHz. The spectrometer is also so sensitive that a Lamb dip of a less abundant isotopomer, 13CH4, has been successfully observed.
| Original language | English |
|---|---|
| Pages (from-to) | 2771-2775 |
| Number of pages | 5 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 45 |
| Issue number | 4 A |
| DOIs | |
| Publication status | Published - 2006 Apr 7 |
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Keywords
- Cavity-enhanced spectroscopy
- Difference frequency generation
- Laser spectroscopy
- Linewidth
- Methane
- Mid-IR
- Saturation spectroscopy
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Narrow lamb dip of 3.4 μm band transition of methane with difference frequency generation and enhancement cavity. / Anzai, Kenji; Gao, Xiaoming; Sasada, Hiroyuki; Yoshida, Naohiro.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 4 A, 07.04.2006, p. 2771-2775.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Narrow lamb dip of 3.4 μm band transition of methane with difference frequency generation and enhancement cavity
AU - Anzai, Kenji
AU - Gao, Xiaoming
AU - Sasada, Hiroyuki
AU - Yoshida, Naohiro
PY - 2006/4/7
Y1 - 2006/4/7
N2 - We have developed a sub-Doppler-resolution spectrometer tunable in the 3.4 μm region on the basis of difference frequency generation and an enhancement cavity cell. The spectrometer has allowed us to record the Lamb dips of the V3 fundamental band of methane even with an IR power level of 3.9 μW, and the linewidth of the Lamb dips can be as narrow as 0.33 MHz. The spectrometer is also so sensitive that a Lamb dip of a less abundant isotopomer, 13CH4, has been successfully observed.
AB - We have developed a sub-Doppler-resolution spectrometer tunable in the 3.4 μm region on the basis of difference frequency generation and an enhancement cavity cell. The spectrometer has allowed us to record the Lamb dips of the V3 fundamental band of methane even with an IR power level of 3.9 μW, and the linewidth of the Lamb dips can be as narrow as 0.33 MHz. The spectrometer is also so sensitive that a Lamb dip of a less abundant isotopomer, 13CH4, has been successfully observed.
KW - Cavity-enhanced spectroscopy
KW - Difference frequency generation
KW - Laser spectroscopy
KW - Linewidth
KW - Methane
KW - Mid-IR
KW - Saturation spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=33645677298&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645677298&partnerID=8YFLogxK
U2 - 10.1143/JJAP.45.2771
DO - 10.1143/JJAP.45.2771
M3 - Article
AN - SCOPUS:33645677298
VL - 45
SP - 2771
EP - 2775
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 4 A
ER -