Laser oscillation at 2054 cm−1 has been observed from a vibrational transition of the CN− molecule doped into KBr host crystals. At sufficiently large CN− concentrations, population inversion between the υ = 2 and υ = 1 vibrational levels is created by optical pumping of the 0 → 1 transition followed by an efficient vibrational-energy exchange process.
© 1984 Optical Society of America
Original Manuscript: December 19, 1983
Manuscript Accepted: February 1, 1984
Published: April 1, 1984
R. W. Tkach, T. R. Gosnell, and A. J. Sievers, "Solid-state vibrational laser—KBr:CN−," Opt. Lett. 9, 122-124 (1984)