Direct laser micro-drilling of high-quality photonic nanojet achieved by optical fiber probe with microcone-shaped tip; Applied Physics A; Vol. 131, iss. 1

Direct laser micro-drilling of high-quality photonic nanojet achieved by optical fiber probe with microcone-shaped tip; Applied Physics A; Vol. 131, iss. 1

Bibliographische Detailangaben
Parent link:Applied Physics A.— .— New York: Springer Science+Business Media LLC.
Vol. 131, iss. 1.— 2024.— Article number 16, 11 p.
Weitere Verfasser: Li Lieber Po-Hung, Hung Ting-Yuan, Wei-Yu Chen, Hung-Ju Chung, Chia-Hsiung Cheng, Tien-Li Chang, Chen Yu-Bin, Minin O. V. Oleg Vladilenovich, Minin I. V. Igor Vladilenovich, Cheng-Yang Liu
Zusammenfassung:Title screen
Photonic nanojet can serve as a powerful tool for direct laser micro-machining based on a non-resonance focusing phenomenon. In this study, we propose a photonic nanojet-based direct micro-drilling technique for polymer material with low-cost and low-power continuous-wave laser. The high-quality photonic nanojet is produced using the microcone-shaped probe tip, which is fabricated by the dynamic chemical etching method. By utilizing laser photonic nanojet triggered thermoplasmonics, the high-aspect-ratio microcavity is fabricated with the low threshold value of laser power. The influences of the photonic nanojet peak intensities and distributions on the drilled microcavities are systematically investigated by the experiments and the finite-difference time-domain simulations. With the continuous-wave solid-state laser at a wavelength of 671 nm, the simulations show that the photonic nanojet with a quality factor of 103 is generated at a distance of ~ 20 μm from the surface of the microcone-shaped tip with a beam waist of 252 nm in the x direction, which could overcome the diffraction limit. The experimental results show that the length and peak intensity of the photonic nanojet have increased considerably in the propagation direction by the microcone-shaped probe tip, which leads to form a deep microcavity in the polymer substrate with an aspect ratio of 5.73. The presented microcone-shaped probe tip has potential applications in processing sub-diffraction features with a high aspect ratio
Текстовый файл
AM_Agreement
Sprache:Englisch
Veröffentlicht: 2024
Schlagworte:
электронный ресурс
труды учёных ТПУ
laser drilling
photonic nanojet
fiber probe
high aspect ratio
Online-Zugang:https://doi.org/10.1007/s00339-024-08158-3
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=678690

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