Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 58, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/1347-4065/ab1e3c
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- JSPS KAKENHI [JP16K04980]
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A microdisk laser based on the fluorinated hyper branched polymer FC-V-50 was fabricated on an FEP (fluorinated ethylene propylene) substrate with the use of the ink-jet printing method. Pyrromethene597 doped 10 wt.% FC-V-50 solution in ethanol was used for the fabrication of a microdisk laser. The FC-V-50 polymer is characterized by a carboxyl functional group, which can be activated and attached to an amine group found in biomolecules. Based on the lasing characteristics, it is found that the microdisk laser has a relatively low lasing threshold of 34.51 mu J mm(-2) and a reasonable Q factor of 7.52 x 10(3) at 586.59 nm. Therefore, the microdisk can be used for biosensing. The root mean square (RMS) of the surface roughness of the microdisk was estimated to be 6.2 nm. The surface roughness results scattering losses and limits the Q factor. This work reports the first demonstration of a microdisk laser based on FC-V-50 for biosensing applications. (C) 2019 The Japan Society of Applied Physics
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