期刊
APPLIED PHYSICS LETTERS
卷 116, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5129477
关键词
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资金
- JSPS KAKENHI [18H01476, 16H06085, 18K18857, 17H02771]
- Grants-in-Aid for Scientific Research [16H06085, 17H02771, 18H01476, 18K18857] Funding Source: KAKEN
Miniaturization of the tunable laser equipment is an important factor for further development in various optoelectronic technologies. To realize the compact tunable laser devices, an optical gain medium having a broadband optical gain characteristic is required. In this study, we propose a promising strategy for preparing an optical gain film that exhibits a similar to 250nm gain bandwidth in the visible wavelength region. This film consists of a polymer matrix co-doped with organic luminescent molecules that form a complex of the excited state, i.e., exciplex. The exciplex state can co-exist with the monomolecular exciton state, leading to broadband (400-650 nm) optical gain with a large Stokes shift. Optically pumped lasing action is also possible when the film is combined with an optical resonator. This strategy would be useful for developing a compact tunable laser device without active medium replacement. Published under license by AIP Publishing.
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