An In-situ Transmission X-ray Microscope to Observe the Dewetting Process of Au Thin Films induced by Nanosecond Pulsed Laser Irradiation
Autor: | Hyon Chol Kang, Do Young Noh, Jung Won Choi, Su Yong Lee, Yoonhee Kim |
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Rok vydání: | 2019 |
Předmět: |
010302 applied physics
In situ Microscope Materials science business.industry General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention Wavelength law 0103 physical sciences Optoelectronics Irradiation Dewetting Thin film 0210 nano-technology business X-ray microscope |
Zdroj: | Journal of the Korean Physical Society. 75:523-527 |
ISSN: | 1976-8524 0374-4884 |
Popis: | We coupled an in-situ transmission X-ray microscope (TXM) with a Nd:YAG pulsed laser with a 532-nm wavelength and a 6-ns pulse width. This system was employed to investigate the photo-induced morphological evolution in Au thin films during shot-by-shot irradiation by a single laser pulse. Based on results for Au thin films with thicknesses of 10 and 20 nm, we successfully demonstrated the in-situ TXM system to be a powerful tool for imaging the photo-induced transition from metal thin films to metal nanoparticles. We also found that the sequence of steps leading to this transition depended critically on the thickness of the Au films. |
Databáze: | OpenAIRE |
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