Optical transmittance of carbon suspensions in polymer matrixes under powerful pulsed laser irradiation

• Veröffentlicht in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Datum: 2010
• ISSN: 1560-8034
• Hauptverfasser: Zelensky, S.E., Kopyshinsky, O.V., Garashchenko, V.V., Kolesnik, A.S., Stadnytskyi, V.M., Zelenska, K.S., Shynkarenko, Ye .V.
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2010
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/117745
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Optical transmittance of carbon suspensions in polymer matrixes under powerful pulsed laser irradiation / S.E. Zelensky, O.V. Kopyshinsky, V.V. Garashchenko, A.S. Kolesnik, V.M. Stadnytskyi, K.S. Zelenska, Ye .V. Shynkarenko // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2010. — Т. 13, № 1. — С. 70-73. — Бібліогр.: 19 назв. — англ.

The effect of optical limiting is investigated in the suspensions of carbon
 microparticles in aqueous gelatin gel and epoxy resin. Both transient and permanent
 changes of optical transmittance are observed after the irradiation by a Q-switched
 YAG:Nd³⁺ laser pulses. The experimental results are explained with taking into account
 the formation of micro-bubbles filled with water steam and with gaseous products of
 decomposition of the matrix. In the epoxy resin suspensions, the laser-induced permanent
 changes of transmittance are caused by pyrolysis of epoxy oligomers in the vicinity of
 laser-heated carbon particles.