Spectroscopic and Infrared Measurements on CW HF(DF) Chemical Lasers.

摘要

The supersonic,free-jet medium of a 10to 15kW,HF/DF chemical laser is studied. Results from a remotely controlled spectrograph that scans rapidly,spatially,and spectrally are described;observations from an IR vidicon system are also given. The laser system includes two types of plenum gas heater:arc and combustor;and two types of nozzle bank:split and axisymmetric. The spectrograph measures the HF 3-0 P-branch emission,from which HF(3) number density along the line-of-sight N3L and rotational temperature T(R) are deduced at a large number of spatial positions. The data can be given as three types: (1) spatial scans transverse to the flow, (2) scans parallel to the flow,and (3) data at fixed position. Various interpretations concerning the medium result from the three types of data.