Title :
Frequency measurements of 9- and 10-μm N2O laser transitions
Author :
Tachikawa, Maki ; Evenson, Kenneth M. ; Zink, Lyndon R. ; Maki, Arthur G.
Author_Institution :
Time & Frequency Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
10/1/1996 12:00:00 AM
Abstract :
We have measured frequencies of N2O transitions by heterodyning sub-Doppler fluorescence-stabilized N2O laser radiation with that from a reference CO2 laser. A high-resolution cavity incorporates a ribbed tube and a highly reflective grating, permitting the CW oscillation of both the 100 0-0200 9-μm and the 1000-0001 10-μm regular bands. This is the first sub-Doppler frequency measurement of the 9-μm band. The accuracy in the determination of the rotational constants for both bands has been improved by an order of magnitude, and calculated transition frequencies are presented
Keywords :
frequency measurement; gas lasers; infrared sources; laser stability; laser transitions; laser variables measurement; measurement errors; nitrogen compounds; rotational states; 10 mum; 9 mum; CO2; CW oscillation; IR sources; N2O; N2O laser transitions; calculated transition frequencies; frequency measurements; gas lasers; high-resolution cavity; highly reflective grating; measurment accuracy; reference CO2 laser; ribbed tube; rotational constants; sub-Doppler fluorescence-stabilized N2O laser radiation heterodyning; sub-Doppler frequency measurement; Electromagnetic wave absorption; Frequency measurement; Gas lasers; Infrared spectra; Laser modes; Laser stability; Laser transitions; Pump lasers; Ribs; Spectroscopy;
Journal_Title :
Quantum Electronics, IEEE Journal of
