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Lasers: Low‐Threshold Whispering Gallery Mode Lasing from Self‐Assembled Microspheres of Single‐Sort Conjugated Polymers (Advanced Optical Materials 10/2017)
Author(s) -
Kushida Soh,
Okada Daichi,
Sasaki Fumio,
Lin ZhanHong,
Huang JerShing,
Yamamoto Yohei
Publication year - 2017
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201770052
Subject(s) - lasing threshold , materials science , whispering gallery wave , laser , optoelectronics , femtosecond , whispering gallery , polymer , optics , amplified spontaneous emission , substrate (aquarium) , conjugated system , wavelength , resonator , physics , composite material , oceanography , geology
Whispering gallery mode lasing upon femtosecond laser pumping is demonstrated with self‐assembled, single‐component conjugated polymer microspheres in article number 1600123 by Yohei Yamamoto and co‐workers. The lasing threshold of the presented laser is as low as one μJ per square centimeter. The threshold fluence is further reduced by mounting the microspheres on an Ag‐coated substrate, achieving values amongst the lowest ever reported with dye‐doped polymer lasers.
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