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Figure 1
The experimental setup. The modified video projector is built onto an optical breadboard, hosting the control panel (a), three LCoS SLMs (e), power electronics and video connectors (inside the board). A laser source (b) emits a collimated green light beam of 2 mm diameter, which is directed via an alignment mirror (c) to a polarizing beam splitter (d). The beam splitter reflects the beam to the centre of the reflective SLM (e) that processes the green colour channel of the video stream. The diffracted light is now spatially modulated in its polarization state. By passing through the polarizing beam splitter again, this modulation is transferred into an amplitude modulation of the reflected light. An aperture (f) filters unwanted higher-order diffraction components before the beam is directed to the projection screen.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 52| Part 2| April 2019| Pages 457-462
https://doi.org/10.1107/S1600576719001948
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