Single step DLW fabrication of tunable optical and photonics devices

Saurabh Awasthi; Seung Yeon Kang

doi:10.1117/12.3002706

13 March 2024 Single step DLW fabrication of tunable optical and photonics devices

Saurabh Awasthi, Seung Yeon Kang

Proceedings Volume PC12898, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII; PC128980G (2024) https://doi.org/10.1117/12.3002706
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We present a novel design for an electrically tunable focus (ETF) FZP lens device in a dielectric medium. This metal lens benefits from SPP enhancement in addition to ETF properties . These devices are fabricated using a simplified one-step direct laser writing (DLW) process that exploits photoreduction in a transparent metal salt enriched growth medium. The setup uses 800 nm MaiTai laser with a 90 fs laser pulse. Few mw pulses are focused using high NA objective on a sample mounted on a high resolution 3D stage. This device shows immense potential in various fields, including micro/nano photonics, machine vision, and AR/VR applications.

Conference Presentation

Citation Download Citation

Saurabh Awasthi and Seung Yeon Kang "Single step DLW fabrication of tunable optical and photonics devices", Proc. SPIE PC12898, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII, PC128980G (13 March 2024); https://doi.org/10.1117/12.3002706

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