Simultaneous dual-scale subwavelength gratings formation over a broad wavelength range

Md Abu Taher; D Narayana Rao; N Sri Ram Gopal

doi:10.1364/FIO.2021.JW7A.61

Frontiers in Optics + Laser Science 2021
Technical Digest Series (Optica Publishing Group, 2021),
paper JW7A.61
•https://doi.org/10.1364/FIO.2021.JW7A.61

Simultaneous dual-scale subwavelength gratings formation over a broad wavelength range

Md Abu Taher, D Narayana Rao, and N Sri Ram Gopal

Laser Science 2021

Washington, DC United States
1–4 November 2021
ISBN: 978-1-55752-308-2

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Joint Poster Session II (JW7A)

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M. A. Taher, D. N. Rao, and N. S. R. Gopal, "Simultaneous dual-scale subwavelength gratings formation over a broad wavelength range," in Frontiers in Optics + Laser Science 2021, C. Mazzali, T. (T.-C.) Poon, R. Averitt, and R. Kaindl, eds., Technical Digest Series (Optica Publishing Group, 2021), paper JW7A.61.

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Abstract

Dual-scale laser induced nanogratings on stainless steel surface of periodicity 45-100 nm (for secondary ripples), and 230-800 nm (primary ripples) are fabricated via femtosecond laser micromachining with a broad incident wavelength from 400-2200 nm.

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