Source 1primary paper2007Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Toolkit/liquid-crystal-on-silicon spatial light modulator
liquid-crystal-on-silicon spatial light modulator
Also known as: LCOS spatial light modulator, SLM
Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
The liquid-crystal-on-silicon spatial light modulator is an LCOS-based device engineered for phase-only optical modulation. It modulates incident light wavefronts with a phase range exceeding one wavelength and was developed for wavefront control applications including adaptive optics, optical manipulation, and laser processing.
Usefulness & Problems
Why this is useful
This device is useful for optical experiments and systems that require programmable wavefront shaping without amplitude modulation. Reported monochromatic light-utilization efficiency of approximately 90% and flexible 12-bit control support its use in phase-sensitive optical control.
Problem solved
It addresses the need for high-resolution, phase-only spatial modulation of light for wavefront control. The device was specifically designed to support adaptive optics, optical manipulation, and laser processing applications.
Problem links
Wavefront control is plausibly relevant to precision optical systems, and the item is directly described as a phase-only optical modulation device for adaptive optics and related applications. It might help in benchtop prototyping of optical control paths for novel interferometric or modulation-based sensing concepts.
Taxonomy & Function
Primary hierarchy
Technique Branch
Method: A concrete measurement method used to characterize an engineered system.
Target processes
degradationInput: Light
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: sensor
The device architecture used electronics composed of a DVI receiver, an FPGA, and 12-bit DACs. It had 792 × 612 pixels with 20 × 20 micron square pixel size, and included a dielectric multilayer mirror to enhance reflectivity. The reported performance metrics were described for monochromatic light.
Poor flatness of the silicon backplane was reported to degrade the output wavefront from the SLM. The available evidence is limited to device description and performance claims from the source study, with no independent replication or broader application benchmarking provided.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
A 12-bit control mode directly transferred 12-bit data to the DACs and enabled highly flexible control of device characteristics.
In one of the modes, the driver received 12-bit data and transferred them directly to the DACs. This 12-bit control mode enabled highly flexible control of the device characteristics.
The device was driven by electronics composed of a DVI receiver, an FPGA, and 12-bit DACs.
The device was driven by electronics composed of a digital-visual-interface (DVI) receiver, a field programmable gate array, and 12-bit digital-to-analog converters (DACs).
A dielectric multilayer mirror was incorporated into the device to enhance reflectivity.
A dielectric multilayer mirror was incorporated into the device to enhance the reflectivity.
The authors developed an LCOS spatial light modulator for phase-only modulation.
We developed a liquid-crystal-on-silicon (LCOS) spatial light modulator (SLM) for phase-only modulation.
The device had 792 x 612 pixels with 20 x 20 micron square pixel size.
The number of pixels was 792 x 612 and their size was 20 x 20 microns square.
pixel count 792 x 612pixel size 20 x 20 microns square
The LCOS spatial light modulator was designed mainly for wavefront control in adaptive optics, optical manipulation, and laser processing.
The SLM was designed mainly for wavefront control in adaptive optics, optical manipulation, laser processing, etc.
Poor flatness of the silicon backplane degraded the output wavefront from the SLM.
The silicon backplane of the SLM was mechanically weak and its surface was not flat. The poor flatness degraded the output wavefront from the SLM.
The phase modulation range exceeded one wavelength and monochromatic light-utilization efficiency was approximately 90%.
The range of the phase modulation exceeded one wavelength, and the light-utilization efficiency for monochromatic light was approximately 90%.
light utilization efficiency 90 %phase modulation range one wavelength
Approval Evidence
1 source8 linked approval claimsfirst-pass slug liquid-crystal-on-silicon-spatial-light-modulator
We developed a liquid-crystal-on-silicon (LCOS) spatial light modulator (SLM) for phase-only modulation.
Source:
control modesupports
A 12-bit control mode directly transferred 12-bit data to the DACs and enabled highly flexible control of device characteristics.
In one of the modes, the driver received 12-bit data and transferred them directly to the DACs. This 12-bit control mode enabled highly flexible control of the device characteristics.
Source:
device architecturesupports
The device was driven by electronics composed of a DVI receiver, an FPGA, and 12-bit DACs.
The device was driven by electronics composed of a digital-visual-interface (DVI) receiver, a field programmable gate array, and 12-bit digital-to-analog converters (DACs).
Source:
device featuresupports
A dielectric multilayer mirror was incorporated into the device to enhance reflectivity.
A dielectric multilayer mirror was incorporated into the device to enhance the reflectivity.
Source:
device functionsupports
The authors developed an LCOS spatial light modulator for phase-only modulation.
We developed a liquid-crystal-on-silicon (LCOS) spatial light modulator (SLM) for phase-only modulation.
Source:
device specificationsupports
The device had 792 x 612 pixels with 20 x 20 micron square pixel size.
The number of pixels was 792 x 612 and their size was 20 x 20 microns square.
Source:
intended applicationsupports
The LCOS spatial light modulator was designed mainly for wavefront control in adaptive optics, optical manipulation, and laser processing.
The SLM was designed mainly for wavefront control in adaptive optics, optical manipulation, laser processing, etc.
Source:
limitationsupports
Poor flatness of the silicon backplane degraded the output wavefront from the SLM.
The silicon backplane of the SLM was mechanically weak and its surface was not flat. The poor flatness degraded the output wavefront from the SLM.
Source:
performancesupports
The phase modulation range exceeded one wavelength and monochromatic light-utilization efficiency was approximately 90%.
The range of the phase modulation exceeded one wavelength, and the light-utilization efficiency for monochromatic light was approximately 90%.
Source:
Comparisons
Source-backed strengths
The reported phase modulation range exceeded one wavelength, which supports full-wave phase control. The device also achieved approximately 90% monochromatic light-utilization efficiency and incorporated a dielectric multilayer mirror to enhance reflectivity. Its 12-bit control mode directly transferred 12-bit data to DACs, enabling flexible control of device characteristics.
Source:
The range of the phase modulation exceeded one wavelength, and the light-utilization efficiency for monochromatic light was approximately 90%.
Compared with blue light-responsive Cas13b mRNA knockdown system
liquid-crystal-on-silicon spatial light modulator and blue light-responsive Cas13b mRNA knockdown system address a similar problem space because they share degradation.
Shared frame: shared target processes: degradation; shared mechanisms: degradation; same primary input modality: light
Compared with lyso-ArchT
liquid-crystal-on-silicon spatial light modulator and lyso-ArchT address a similar problem space because they share degradation.
Shared frame: shared target processes: degradation; shared mechanisms: degradation; same primary input modality: light
Compared with lyso-ChR2
liquid-crystal-on-silicon spatial light modulator and lyso-ChR2 address a similar problem space because they share degradation.
Shared frame: shared target processes: degradation; shared mechanisms: degradation; same primary input modality: light
Ranked Citations
- 1.FoundationalSource 1Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE2007Claim 1Claim 2Claim 3
Derived from 8 linked claims. Example evidence: In one of the modes, the driver received 12-bit data and transferred them directly to the DACs. This 12-bit control mode enabled highly flexible control of the device characteristics.