All‐Inorganic TiO 2 Nanoparticle‐Based Metalenses Manufactured by Direct Nanoimprint Lithography for High Energy Applications: Femtosecond Laser‐Induced Damage Threshold Testing (Advanced Optical Materials 2/2026)

Advanced Optical Materials 2026

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Authors: Dae Eon Jung, Jonas Amann, Vincent J. Einck, Justas Baltrukonis, Lucas D. Verrastro, Alex Dawicki, Mohammad Pasdari-Kia, Amir Arbabi, Gerhard Liedl, Andreas Otto, James J. Watkins
DOI: 10.1002/adom.70722
Cited by: 0

Abstract

Meta Optics High optical stability of directly nanoimprinted metalens arrays was demonstrated using femtosecond high-energy laser pulses with an exposure time over 3 hours. Unlike an earlier failure of TiO2 nanoparticle-polymer composite metalenses at a much lower fluence (< 8 mJ/cm2), the all-inorganic TiO2 metalenses remained intact (> 64 mJ/cm2) and maintained high focusing efficiency. More details can be found in the Research Article by James J. Watkins and co-workers (DOI: 10.1002/adom.202501769).

Fields of Study & Subjects

Metamaterials and Metasurfaces Applications Optical Coatings and Gratings Laser Material Processing Techniques

Publication details

Journal / source
Advanced Optical Materials
Volume
14
Issue
2
Publication date
1 January 2026
Language
EN