High-resolution Doppler-free molecular spectroscopy with a continuous-wave optical parametric oscillator.
We present a reliable, narrow-linewidth (100-kHz) continous-wave optical parametric oscillator (OPO) suitable for high-resolution spectroscopy applications. The singly resonant OPO with a resonated pump is based on periodically poled lithium niobate crystal and features a specially designed intracavity etalon, which permits precise tuning to any desired wavelength in a wide range. We demonstrate Doppler-free spectroscopy of a rovibrational transition of methane at 3.39 mum.
E V
EV
Kovalchuk
D
D
Dekorsy
A I
AI
Lvovsky
C
C
Braxmaier
J
J
Mlynek
A
A
Peters
S
S
Schiller