Cadmium and Zinc Monoiodide: New Discharge Pumped Metal Halide Oscillators and Amplifiers (Lasers)

Greene, Dennis Paul

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Description

Title

Cadmium and Zinc Monoiodide: New Discharge Pumped Metal Halide Oscillators and Amplifiers (Lasers)

Author(s)

Greene, Dennis Paul

Issue Date

1985

Department of Study

Electrical Engineering

Discipline

Electrical Engineering

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

Engineering, Electronics and Electrical

Abstract

Broad band gain on the B(--->)X bands of ZnI and CdI has been obtained in 13 and 25 cm active length, UV-preionized, high temperature (440(DEGREES)C), transverse discharge devices. With a 50 cm active length device, stimulated emission has been observed on the B(--->)X bands of ('114)CdI and CdI at 657 nm. The ('114)CdI laser has been injection locked between 655 and 660 nm with injection intensities of (TURN)5 W c('-2). The saturation intensity of the CdI (B(--->)X) band has been directly measured to be (TURN)125 kW cm('-2). Transient absorption spectroscopy has been used to identify short-lived species created in the CdI discharge, in particular, the 5p ('3)P(,J) and 6s ('3)S(,1) states of atomic cadmium and the X ('2)(SIGMA)(,1/2) state of CdH. Finally, a previously unseen 454 nm bound to free absorption band is presented and positively identified as originating from the B ('2)(SIGMA) state of CdI and terminating on a dissociative state correlating with the Cd (5p ('3)P) + I (('2)P(,3/2)) separated atom limit.

Graduation Semester

1985

Type of Resource

text

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