SLM-toolbox

Matlab toolbox for easy-use spatial light modulator (SLM).

Architecture

• Base Class: SLM.m

• Inheritance Class: defined by yourself according to different types of SLMs

  • to inherit the SLM base class, method disp_image and user-defined initialization functions should be implemented
  • For Holoeye SLM, I already implemented HoloeyeSLM.m for phase/image display on a second screen
  • For Meadowlark SLMs, I already implemented MeadowlarkSLM.m for PCIe-linked SLM and MeadowlarkHDMISLM.m for HDMI-linked RGB encoding SLM

• Calibration:

  • Before the phase image display, each SLM should be calibrated. I provided a double-hole interference method in calibration.m and modified the diffractive method in utils/meadowlark_sdk/PCIeDiffractiveTest.m / utils/meadowlarkhdmi_sdk/PCIeDiffractiveTest.m
  • All calibration methods now need to use an IC Capture camera. I implemented a class Camera.m for easy usage

Characteristics

phase modulation display

• allow phase-gray look-up-table (LUT) auto-apply when slm.LUT is evaluated

• allow blazed-grating auto-apply

• display phase: slm.disp_phase(phase_,use_blaze)

• display image: slm.disp_image(image_,use_blaze)

holography

• image resample for iterative phase extraction: slm.GS_resample()
• GS iteration for phase extraction from the image: slm.GS()

phase generation

• blazed grating: slm.blazedgrating(Tx,Ty,T) ( boolean Tx, Ty indicates direction-off/on)

Usage

To see how to use each SLM class, take a look at test_slm.m. To see how to use Camera class, take a look at test_cam.m.