Journal
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume 42, Issue 9A, Pages 5590-5593Publisher
INST PURE APPLIED PHYSICS
DOI: 10.1143/JJAP.42.5590
Keywords
organic solid-state laser; organic semiconductors; distributed feedback; plastic laser; replica-molding; soft lithography; imprinting
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We describe low-threshold photopumped organic distributed feedback (DFB) lasers with a polymer grating fabricated by replica molding, which is a soft imprinting method. These simply fabricated lasers oscillate at a low threshold comparable to that of organic DFB lasers precisely constructed using photolithographic technology. The threshold of laser oscillation was 250 nJcm(-2)pulse(-1), that is, a peak-power threshold of 500 Wcm(-2)pulse(-1).
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