Direct-write waveguides in volume photopolymers

McLeod, Robert R.; Sullivan, Amy C.; Grabowski, Matthew W.

doi:10.1364/ipr.2004.jwb24

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2006

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“…New 3D manufacturing technologies are renewing interest in volumetric phase structures for engineering applications such as holographic data storage 1,2 and optical device integration using direct-write waveguides in photopolymer 3,4 or fused silica. 5 Transmission mode data holograms and point-written waveguides both occupy spatial frequency bands that are amenable to detection with a microscope in a transmission geometry.…”

Section: Introductionmentioning

confidence: 99%

Scanning transmission microscopy using a position-sensitive detector

Ayres

McLeod

2006

Appl. Opt.

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Optical data manipulation technologies increasingly employ densely aperiodic optical 3D phase elements. Refinement of such technologies will require the capability to quantitatively characterize the volumetric dielectric modulation of an optical sample to a high level of precision and spatial resolution. We present a scanning transmission microscopy system that uses a position-sensitive detector to impart sensitivity to both the phase and absorption components. We describe the layout of the instrument and then derive its phase and absorption transfer functions. Simulations and experiments are presented to validate the analysis. For phase detection, the instrument possesses depth-sectioning properties similar to those of a confocal microscope without the use of a pinhole, enabling full 3D object reconstruction.

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