Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3179689
Keywords
conducting polymers; distributed feedback lasers; laser beams; optical polymers; optical switches; photoluminescence; stimulated emission
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Funding
- European Commission [THREADMILL-MRTN-CT-2006-036040]
- EPSRC [GR/S97743]
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We present gain and lasing results from a polyrotaxane consisting of a conjugated polymer (polyfluorene-alt-biphenylene) threaded through sugar macrocycles (beta-cyclodextrin). Encapsulation suppresses interchain charge separation, leading to lasing emission not observed in the unthreaded polymer, and enlargement of the stimulated emission in threaded polymer is observed. We demonstrate all-optical switching distributed feedback laser.
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