Spatial Light Modulator Phase

Spatial light modulators allow using a special type of phase shifting method.

Spatial light modulator phase.

Spatial light modulator slm is a general term describing devices that are used to modulate amplitude phase or polarization of light waves in space and time. Spatial light modulators slms have widespread applications ranging from 3d video projection 1 and additive manufacturing 2 to quantum 3 and adaptive optics. For maximum phase shift values refer to the table to the upper right. Meadowlark optics designs develops and manufactures an extensive range of high quality polarization systems and components including liquid crystal devices.

The squares are set 44 levels of grey. The reference mirror is set static and different wavefronts are excited by means of the modulator. These spatial light modulators provide far more pixels than lower order phase modulators such as segmented or deformable mirrors. A simple example is an overhead projector transparency usually when the phrase slm is used it means that the transparency can be controlled by a computer in the 1980s large slms were placed on overhead projectors to project computer monitor contents to the screen.

4 the most versatile type of slms are phase only slms which are capable of reconfiguring the phase retardation. Each spatial light modulator includes a built in slm panel with independent horizontal and vertical tilt adjustment of 3 2. Spatial light modulators slms have widespread applications ranging from three dimensional video projection and additive manufacturing to quantum and adaptive optics the most versatile phase only slms are capable of reconfiguring the phase retardation of light transmitted through or reflected from each pixel without changing its intensity. The pluto 2 1 phase only spatial light modulator slm consists of a driver unit with standard digital video interface hdmi and a phase only lcos liquid crystal on silicon microdisplay with full hd resolution 1920 x 1080 pixel and 8 µm pixel pitch leading to an active area diagonal of 0 7 with aspect ratio of 16 9.

A spatial light modulator slm is an object that imposes some form of spatially varying modulation on a beam of light. Holoeye s spatial light modulator systems are based on translucent lcd or reflective lcos liquid crystal microdisplays. Hex spatial light modulator our transmissive hexagonal array slms are designed for adaptive optics applications the two dimensional array of liquid crystal variable retarders acts as a real time programmable phase mask for wavefront correction of a linear polarized source. The reference mirror is unblocked and the polarizers are removed.

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