Improvements in a rapid scan ir spectrometer used for flash photolysis–kinetic spectroscopy are described. The scanning mechanism now regularly operates at a repetition rate of 20,000 scans/sec; the photolysis flash has a half-time of 7.5 μsec, with energy up to 2940 J, and at 1500 J it yields 5 × 1018 quanta/flash; the spectroscopic light source operates with a brightness temperature of 2400 K. The relationship between spectral resolution and scanning speed is quantitatively discussed.
© 1968 Optical Society of America
Original Manuscript: May 27, 1968
Published: November 1, 1968
R. M. Hexter and C. W. Hand, "Infrared Spectroscopy at 20,000 Scans per Second," Appl. Opt. 7, 2161-2165 (1968)