Degradation of microgun-pumped blue lasers

Microgun-pumped blue lasers with lasing thresholds in the 4-20 kW/cm(2) range for temperatures between 83 and 225 K were fabricated by molecular beam epitaxy. The devices exploit graded index, separate confinement Zn1-xCdxSe/ZnSe heterostructures and use an array of low-voltage field-emission microtips for electron beam pumping. Degradation occurs through the formation of characteristic (100) dark-line defects, as in diode lasers. The device lifetime exceeded several hours at 83 K for a laser operating at 478.4 nm with a 12.5% duty-cycle.


Published in:
Journal of Crystal Growth, 159, 1-4, 600-604
Year:
1996
ISSN:
0022-0248
Note:
Smdo,leti,cea technol avancees,dopt,f-38054 grenoble 9,france. swiss fed inst technol,imo,epfl,ch-1015 lausanne,switzerland. ist nazl fis mat,lab nazl tecnol avanzate superfici & catalisi,area ric,i-34012 trieste,italy. cnr,ist icmat,rome,italy. univ trieste,dipartmento fis,i-34012 trieste,italy. univ minnesota,dept chem engn & mat sci,minneapolis,mn 55455.
ISI Document Delivery No.: UH324
Times Cited: 2
Cited Reference Count: 17
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