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Spatial Light Modulators (SLMs) - SLM-128 and SLM-640

Spatial Light Modulators (SLMs) - SLM-128 and SLM-640
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Spatial Light Modulators (SLMs) - SLM-128 and SLM-640 - 1

Spatial Light Modulators Key Features and Benefits • Solid-state for rapid, vibrationless operation • Single-mask or dual-mask liquid-crystal designs for phase, amplitude, or simultaneous phase/amplitude control • VIS or NIR wavelength ranges • Smaller SLM-128 enclosure for easier integration • USB interface with free Software Developer’s Kit (SDK) for efficient low-power operation and software integration SLM-128 and SLM-640 Simultaneous phase and amplitude modulation of your VIS or NIR beam with no moving parts These Spatial Light Modulators (SLMs) are based on proven industry-leading designs, and offer both single-mask and dualmask configurations for phase, amplitude, or for simultaneous phase/amplitude pulse shaping. Now part of PerkinElmer, Cambridge Research & Instrumentation, Inc. (CRi) collaborated with the Massachusetts Institute of Technology (MIT) on the initial development of modern liquid crystal (LC) SLMs, and is the exclusive worldwide licensee of MIT’s technology for bonded optical masks for simultaneous phase and amplitude control in a single device. Liquid Crystal Optical Modulation Our SLM optics use nematic LC to alter the phase or the amplitude of light. The LC masks provide an electrically variable index of refraction for light that is polarized along the crystal’s “extraordinary” axis. The refractive index of light that is polarized along the “ordinary” axis (also called the orthogonal axis), is not changed. Depending on the orientation of the extraordinary axis of the LC mask and the placement of linear polarizers in front and/or behind the LC mask, a single-mask SLM can modulate a beam’s phase or amplitude. The dual-mask models use a patented arrangement where two LC masks are bonded together in precise registration and proximity. The masks are oriented orthogonal to one another and 45 degrees to the polarization of incident light. This arrangement enables the independent adjustment of both phase and amplitude. Removing the polarizers and driving both masks with the same patterns so the differential is zero allows the SLM to be used as a pure phase modulator for arbitrarily polarized light.

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Spatial Light Modulators (SLMs) - SLM-128 and SLM-640 - 2

electrically varied at each pixel to modulate phase 3. Exit polarizer ensures horizontal po/Brization Phase Modulation Transmissive Mode Amplitude Modulation Transmissive Mode modulates phase 4. Polarizer selects horizontal polarization component Phase & Amplitude Modulation Transmissive Mode An available and removable surface-coated mirror allows the beam to pass through the system twice. This so-called "double-pass" configuration doubles the optical modulation of the SLM and can result in faster time response when changing between different drive patterns. xxx = number of pixels per mask...

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Spatial Light Modulators (SLMs) - SLM-128 and SLM-640 - 3

Specifications LC optics masks Pixels per mask Pixel height Pixel pitch Interpixel gap1 Intermask alignment 2, 3 Intermask separation2,4 Spectral range5 Transmission (VN)13 Transmission (NM)13 Pulse damage threshold Maximum modulation6,7 Modulation temperature coefficient8 Response time9-12 Drive waveform Drive resolution Frame buffers Interfaces Power Mechanical mounting Overall size Operating temperature Storage temperature 640 5000 μm (5 mm) 100 ± 0.005 μm 2.0 μm n/a ± 2.0 μm n/a ± 2.0 μm n/a 1.03 mm n/a 1.03 mm 488 - 900 nm (VN models), 900 nm - 1620 nm (NM models) > 88% > 85% > 88% >...

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Spatial Light Modulators (SLMs) - SLM-128 and SLM-640 - 4

For more information, please visit www.perkinelmer.com/SLM Email: slm@perkinelmer.com For a complete listing of our global offices, visit www.perkinelmer.com/ContactUs Copyright ©2013, PerkinElmer, Inc. All rights reserved. PerkinElmer® is a registered trademark of PerkinElmer, Inc. All other trademarks are the property of their respective owners

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