Abstract
The whispering-gallery-mode (WGM) laser is a type of laser that has an exceptionally narrow linewidth. Noise-immune cavity-enhanced optical heterodyne molecular spectrometry, which is a detection technique with extraordinary properties that benefit from narrow linewidth lasers, has been realized with a WGM laser. By locking to a cavity with a finesse of 55 000, acetylene and carbon dioxide could be simultaneously detected down to an unprecedented noise equivalent absorption per unit length of 6.6 × 10−14 cm−1 over 150 s, corresponding to 5 ppt of C2H2.
| Original language | English |
|---|---|
| Pages (from-to) | 3109-3112 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 42 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 15 Aug 2017 |
| MoE publication type | A1 Journal article-refereed |
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Whispering-gallery-mode laser-based noise-immune cavity-enhanced optical heterodyne molecular spectrometry. / Zhao, Gang; Hausmaninger, Thomas; Ma, Weiguang; Axner, Ove.
In: Optics Letters, Vol. 42, No. 16, 15.08.2017, p. 3109-3112.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Whispering-gallery-mode laser-based noise-immune cavity-enhanced optical heterodyne molecular spectrometry
AU - Zhao, Gang
AU - Hausmaninger, Thomas
AU - Ma, Weiguang
AU - Axner, Ove
PY - 2017/8/15
Y1 - 2017/8/15
N2 - The whispering-gallery-mode (WGM) laser is a type of laser that has an exceptionally narrow linewidth. Noise-immune cavity-enhanced optical heterodyne molecular spectrometry, which is a detection technique with extraordinary properties that benefit from narrow linewidth lasers, has been realized with a WGM laser. By locking to a cavity with a finesse of 55 000, acetylene and carbon dioxide could be simultaneously detected down to an unprecedented noise equivalent absorption per unit length of 6.6 × 10−14 cm−1 over 150 s, corresponding to 5 ppt of C2H2.
AB - The whispering-gallery-mode (WGM) laser is a type of laser that has an exceptionally narrow linewidth. Noise-immune cavity-enhanced optical heterodyne molecular spectrometry, which is a detection technique with extraordinary properties that benefit from narrow linewidth lasers, has been realized with a WGM laser. By locking to a cavity with a finesse of 55 000, acetylene and carbon dioxide could be simultaneously detected down to an unprecedented noise equivalent absorption per unit length of 6.6 × 10−14 cm−1 over 150 s, corresponding to 5 ppt of C2H2.
UR - http://www.scopus.com/inward/record.url?scp=85027510589&partnerID=8YFLogxK
U2 - 10.1364/OL.42.003109
DO - 10.1364/OL.42.003109
M3 - Article
AN - SCOPUS:85027510589
VL - 42
SP - 3109
EP - 3112
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 16
ER -