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- Title
Imaging of Volume Phase Gratings in a Photosensitive Polymer, Recorded in Transmission and Reflection Geometry.
- Authors
Sabel, Tina; Zschocher, Michael
- Abstract
Volume phase gratings, recorded in a photosensitive polymer by two-beam interference exposure, are studied by means of optical microscopy. Transmission gratings and reflection gratings, with periods in the order of 10 µm down to 130 nm, were investigated. Mapping of holograms by means of imaging in sectional view is introduced to study reflection-type gratings, evading the resolution limit of classical optical microscopy. In addition, this technique is applied to examine so-called parasitic gratings, arising from interference from the incident reference beam and the reflected signal beam. The appearance and possible avoidance of such unintentionally recorded secondary structures is discussed.
- Subjects
OPTICAL properties of polymers; PHOTOSENSITIVITY; QUANTUM efficiency; QUANTUM interference; MICROSCOPY; HOLOGRAPHY
- Publication
Applied Sciences (2076-3417), 2014, Vol 4, Issue 1, p19
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app4010019