Single-Shot Phase Calibration of a Spatial Light Modulator using Geometric Phase Interferometry
Luke A. DeMars , Marta Mikuła-Zdańkowska , Konstantinos Falaggis , Rosario Porras-Aguilar
AbstractA vibration-insensitive, single-shot phase-calibration method for phase-only spatial light modulators (SLM) is reported. The proposed technique uses a geometric phase lens to form a phase-shifting radial shearing interferometer to enable common-path measurements. This configuration has several advantages: (a) unlike diffraction-based SLM calibration techniques, this technique is robust against intensity errors due to misalignment; (b) unlike two-beam interferometers, this technique offers a high environmental stability; and (c) unlike intensity-based methods, the phase-shifting capability provides a phase uncertainty routinely in the order of 2𝜋/100. The experimental results show a significantly higher accuracy when compared to the diffraction-based approaches.
|Journal series||Applied Optics, ISSN 1559-128X, e-ISSN 2155-3165, [0003-6935]|
|Publication size in sheets||0.5|
|Keywords in English||phase-only spatial light modulators, single-shot phase-calibration method, SLM|
|Score||= 100.0, 23-03-2020, ArticleFromJournal|
|Publication indicators||: 2018 = 1.237; : 2018 = 1.973 (2) - 2018=1.88 (5)|
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