Three-dimensional imaging of direct-written photonic structures

Graham D. Marshall, Alexander Jesacher, Anisha Thayil, Michael J. Withford, Martin Booth

Research output: Contribution to journalArticle

16 Citations (Scopus)
5 Downloads (Pure)

Abstract

Third-harmonic generation microscopy has been used to analyze the morphology of photonic structures created using the femtosecond laser direct-write technique. Three-dimensional waveguide arrays and waveguide-Bragg gratings written in fused-silica and doped phosphate glass were investigated. A sensorless adaptive-optical system was used to correct the optical aberrations occurring in the sample and microscope system, which had a lateral resolution of less than 500nm. This nondestructive testing method creates volume reconstructions of photonic devices and reveals details invisible to other linear microscopy and index profilometry techniques.

Original languageEnglish
Pages (from-to)695-697
Number of pages3
JournalOptics Letters
Volume36
Issue number5
DOIs
Publication statusPublished - 1 Mar 2011

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-36-5-695. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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