| Issue |
EPJ Web of Conferences
Volume 5, 2010
API'09 - First NanoCharM Workshop on Advanced Polarimetric Instrumentation
|
|
|---|---|---|
| Article Number | 06006 | |
| Number of page(s) | 5 | |
| Section | New frontiers in polarimetry | |
| DOI | https://doi.org/10.1051/epjconf/20100506006 | |
| Published online | 02 June 2010 | |
https://doi.org/10.1051/epjconf/20100506006
Programmable liquid crystal waveplate polarization gratings as elements for polarimetric and interference applications
1
Departamento de Ciencia de Materiales, Optica y Tecnología
Electrónica. Universidad Miguel Hernández, Elche, Spain
2
Department of Physics, San Diego State
University, San
Diego
CA,
USA
We review the use of a parallel aligned nematic liquid crystal spatial light modulator as a very useful and flexible device for polarimetric and interferometric applications. The device acts as a programmable pixelated waveplate, and the encoding of a linear grating permits its use as a polarization beam splitter. When a grating with a reduced period is encoded, the diffracted beams are spatially separated and the device can be used for polarimetric analysis. On the contrary when a large period grating is displayed, the beams are not spatially separated, and they are useful to realize a common path interferometric system with polarization sensitivity. The flexibility offered by the programmability of the display allows non-conventional uses, including the analysis of light beams with structured spatial polarizations.
© Owned by the authors, published by EDP Sciences, 2010
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