Three-dimensional imaging of direct-written photonic structures

Details Three-dimensional imaging of direct-written photonic structures Three-dimensional imaging of direct-written photonic structures

2010-09-15

arxiv.org/abs/1009.2847v1

Optics Letters, Vol. 36, Issue 5, pp. 695-697 (2011)

Physics

Optics

8 pages, 3 color figures, 2 hyper-linked animations

Scientific paper

10.1364/OL.36.000695

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 500 nm. This non-destructive testing method creates volume reconstructions of photonic devices and reveals details invisible to other linear microscopy and index profilometry techniques.

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