Multi-focal laser processing in transparent materials using an ultrafast tunable acoustic lens

Xiaohan Du, Camilo Florian, Craig B. Arnold

Research output: Contribution to journalArticlepeer-review

Abstract

Fast and versatile alteration of focal positions is critical for applications including selective volumetric modification and parallel laser processing. In this Letter, we implement and characterize an ultrafast, variable focal system using a tunable acoustic gradient of index lens to achieve multi-focal laser processing. We apply our method to the femtosecond laser-induced intra-volumetric modification in glass to show the flexibility in controlling focal positions. Based on this understanding, we exploit the multi-focal nature of the system to demonstrate laser machining on both surfaces of a transparent glass slide in a single lateral scan.

Original languageEnglish (US)
Pages (from-to)1634-1637
Number of pages4
JournalOptics Letters
Volume47
Issue number7
DOIs
StatePublished - Apr 1 2022

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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