Title

Crystal growth and characterization of cr3+Transition metal-doped LiCaA1F6

Abstract

A very promising new room temperature tunable laser crystal LiCaAlFs has been successfully grown by the Czochralski pulling method. Single crystals up to 35mm in diameter and 120mm in length have been produced. Typical pulling rate ranges from 1 to 3 mm/hr and rotation rates vary from 15 to 25 rpm. Based on the optimal temperature gradient design for the resistance heating furnace and the modified Ziegler-Nichol PID fine tuning method, we have systematically doped crystal with different Cr3+ ion concentration, varying from 3% to 15% for the Al site. Spectroscopic datas on the fluorescence lifetime, and absorption bands for different Cr concentration doped crystals were measured. Using these datas we are able to adjust the optimal Cr-doping level for specific application, such as flashlamp pumping or diode pumping.

Notes

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Graduation Date

1990

Semester

Spring

Advisor

Chai, Bruce

Degree

Master of Science (M.S.)

College

College of Arts and Sciences

Department

Physics

Format

PDF

Language

English

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0027750

Subjects

Arts and Sciences -- Dissertations, Academic; Dissertations, Academic -- Arts and Sciences

Accessibility Status

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