Infrared Absorption of Laser Patterned Sapphire Al<sub>2</sub>O<sub>3</sub> for Radiative Cooling

Infrared Absorption of Laser Patterned Sapphire Al<sub>2</sub>O<sub>3</sub> for Radiative Cooling

The reflectance (<i>R</i>) of linear and circular micro-gratings on c-plane sapphire Al<sub>2</sub>O<sub>3</sub> ablated by a femtosecond (fs) laser were spectrally characterised for thermal emission <inline-formula><math xmlns="http://www.w3.org/199...

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Bibliographic Details
Main Authors:	Nan Zheng, Daniel Smith, Soon Hock Ng, Hsin-Hui Huang, Dominyka Stonytė, Dominique Appadoo, Jitraporn Vongsvivut, Tomas Katkus, Nguyen Hoai An Le, Haoran Mu, Yoshiaki Nishijima, Lina Grineviciute, Saulius Juodkazis
Format:	Article
Language:	English
Published:	MDPI AG 2025-04-01
Series:	Micromachines
Subjects:	femtosecond laser ablation direct energy deposition radiative cooling anti-reflective surfaces
Online Access:	https://www.mdpi.com/2072-666X/16/4/476
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