Positive gain measurements on the 470-nm continuum band of CdHg

Abstract

Optical gain has been observed on the 470-nm continuum band of CdHg following the flashlamp excitation of vapor mixtures of Cd and Hg. An argon ion laser was used to monitor gain signals at wavelengths ranging from 457.9 to 514.5 nm.

Laser spectroscopy of the HgCd exciplex

“…Cd(5 Po, 2)+2Hg(6 So)~HgCd +Hg(6 So) (3) This contention is supported by the results of our experi-A 200-%' quartz halogen lamp was used, calibrated by the Canadian National Research Council Laboratories.…”

“…A cylindrical quartz cell, 10 cm long and 2.5 cm in diameter, was charged with redistilled Cd (120 mg) and Hg (460 mg). Hg and Cd form an amalgam and the resulting equilibrium partial Cd and Hg vapor pressures above the liquid phase may be derived from the expression [14,3] BO+ state, which arises from the Hg(6 P, )+Cd(5 'So} asymptotic state. The reason for this is that the energy gap between the Cd(5 'P, } and Hg(6 P, ) states is smaller than the gap between Zn(4 'Pi ) and Hg(6 P, ).…”

“…Some 10 -15 years ago there were several reports of investigations probing the kinetics of HgCd excimer formation and its potential suitability as a laser medium laser [4] or with the flltered output of a Xe flash lamp [3] to induce formation of HgCd by photoassociation, and electron impact [5]. The most extensive kinetic studies were carried out by…”

“…McGeoch and co-workers [1][2][3][4], who suggested the existence of two low-lying HgCd excimer states that emitted blue fiuorescence in their decay to the ground state, but with different decay times. The authors did not attempt to identify these states but merely labeled them "CdHg'(a)" and "CdHg'(b).…”

Investigation of Hg/sub 2/ as a discharge pumped optical storage medium

“…where we have retained only the dependencies on r and v. The spontaneous emission intensity at a given frequency, A[v), is proportional to K* u l* g^l "•" Thus, using (20) and (26),…”