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9 March 2020 Laser processing of polymeric materials by quantum cascade lasers (Conference Presentation)
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Laser processing of polymeric materials by means of 100-mW class QCL lasers with emission wavelength of 7.728 and 4.329 μm were examined. Polymeric materials show absorption bands based on transitions between vibronic levels in mid-infrared (MIR) wavelength. Since such absorption bands are very sharp, resonant conditions with laser wavelength are critical. Quantum cascade laser (QCL) is a promising laser source for mid-infrared laser processing; emission wavelength can be customized by changing the heterostructure. In this work, we have employed 100-mW class QCLs and applied for focused irradiation at several polymeric materials, polypropylene (PP), polycarbonate (PC), polyacetal (POM).
Conference Presentation
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Tadatake Sato, Nobuhiro Umebayashi, Masayuki Kakehata, Hidehiko Yashiro, Naota Akikusa, and Tadataka Edamura "Laser processing of polymeric materials by quantum cascade lasers (Conference Presentation)", Proc. SPIE 11267, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXV, 1126708 (9 March 2020);


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