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Study on Laser Micro Machining Using a Photonic Nanojet (1st report) —Fundamental Characteristics of Laser Micro Machining Using a Photonic Nanojet—
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- UENOHARA Tsutomu
- 大阪大学大学院 日本学術振興会
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- MIZUTANI Yasuhiro
- 大阪大学大学院
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- TAKAYA Yasuhiro
- 大阪大学大学院
Bibliographic Information
- Other Title
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- フォトニックナノジェットを用いたレーザ微細加工に関する研究(第1報) —フォトニックナノジェットの基本的加工特性—
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Description
<p>A photonic nanojet (PNJ) is a fine high-intensity light beam that is generated at the backside of a dielectric microsphere irradiated a laser light. A PNJ has a smaller beam diameter than the incident wavelength. Moreover, a PNJ can propagate a longer distance than 1 μm while maintaining a high intensity with minimal divergence. We propose a laser micro machining method using a PNJ. In this paper, hole machining experiments and finite-difference time-domain simulations were conducted to investigate the fundamental characteristics of laser micro machining using a PNJ by controlling PNJ position in the propagation direction. Hole machining experiments showed that a PNJ is suitable for micro/nano machining. The simulations also showed that nanometer scale machining is possible even though the position of PNJ changes by 1 μm in the propagation direction due to the minimal divergence beam.</p>
Journal
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- Journal of the Japan Society for Precision Engineering
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Journal of the Japan Society for Precision Engineering 86 (1), 113-119, 2020-01-05
The Japan Society for Precision Engineering
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Details 詳細情報について
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- CRID
- 1390002184861321216
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- NII Article ID
- 130007782514
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- ISSN
- 1882675X
- 09120289
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed