ISSN:
1432-0649
Keywords:
42.60
;
33.20
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A computer-controlled diode laser spectrometer for the 1200 to 2500 cm−1 spectral region is described. The spectrometer has been applied to high resolution spectroscopy of the NCO radical at 5.2 μm. The lead-salt diode lasers are cooled to their operating temperature with a temperature adjustable helium evaporation cryostat. Computer-controlled tuning procedures for the frequency tuning of the diode lasers have been developed; they are independent of tables describing the tuning characteristics of the diode lasers. 41 lines of the antisymmetric stretching-vibrationv 3 of the linear NCO radical have been observed. We were able to detect vibration-rotation transitions in both2 π 1/2 and2 π 3/2 fine structure sublevels. These measurements led to the precise determination of additional molecular constants.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00692134
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