Laser emission at 4.5 THz from 15NH3 and a mid-infrared quantum-cascade laser as a pump source.
Opt Express
; 28(16): 23114-23121, 2020 Aug 03.
Article
en En
| MEDLINE
| ID: mdl-32752312
ABSTRACT
We present an optically pumped terahertz gas laser, which is based on a mid-infrared quantum-cascade laser as a pump source, a transversely pumped standing wave resonator, and 15NH3 as a gain medium. We observe several laser lines around 4.5 THz, corresponding to rotational transitions in the ν2 band of ammonia. So far, these are the highest frequencies obtained from a QCL-pumped THz gas laser. The involved molecular transitions are unambiguously identified by high-resolution spectroscopy.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2020
Tipo del documento:
Article