Spatial Light Modulator Principles
Download Principles Meadowlark Optics award-winning Spatial Light Modulators (SLMs) provide
1024 x 1024 Spatial Light Modulator
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Available By Quote Only
Key Features
- High resolution
- High speed High
- Phase Stability
- Pure analog phase control
- High first order efficiency
- High reflectivity
- High power handling
- On-board Memory
- Wavelengths from 488-1650 nm
Meadowlark Optics’ Liquid Crystal on Silicon (LCoS) Spatial Light Modulators (SLMs) are uniquely designed for pure phase applications and incorporate analog data addressing with high refresh rates (1400 Hz). This combination provides users with the fastest response times with high phase stability. The 1024 x 1024 SLM is good for applications requiring high speed, high diffraction efficiency, low phase ripple and high-power lasers.
High Phase Stability – Making an LCOS SLM faster usually means the phase stability is worse. However, we’ve combined our traditional analog drive scheme with new proprietary technologies to suppress phase instabilities to 0.05% to 2.0% without compromising speed. Phase ripple is quantified by measuring the variation in intensity of the 1st order diffracted spot as compared to the mean intensity while writing a blazed phase grating to the SLM. Since phase stability varies as a function of pixel voltage, this measurement approach is an average and does not represent all scenarios. If your application requires extremely low phase ripple, please contact a Meadowlark Solutions Engineer for more information on the 19×12 SLM.Common Specifications
Resolution: 1024 x 1024
Array Size: 17.40 x 17.40 mm
Pixel Pitch: 17 x 17 µm
Fill Factor: 97.20 %
0th Order Diffraction Efficiency: 75 – 87 %
0th Order Diffraction Efficiency: 92 – 98 % (dielectric mirror)
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Item # | Wavelength Range | Cooling | Mirror NOTE The Dielectric Mirror boosts efficiency but requires a wavelength range of 150 - 200 nm. For example, a model that would otherwise be 500 - 1200 nm will need to be targeted to 500 - 700, or 900 - 1100, or similar. Diffraction efficiency on most standard SLMs will range from 70 – 90%, while the dielectric mirror coated models will range from 92 – 98%. |
|---|---|---|---|
HSP-1K-500-1200-PC8-WCS1 | 500-1200 | Liquid Cooling | NO Dielectric Mirror |
HSPDM-1K-500-1200-PC8 | 500-1200 | NO Liquid Cooling | Dielectric Mirror |
HSPDM-1K-500-1200-PC8-WCS1 | 500-1200 | Liquid Cooling | Dielectric Mirror |
UHSP-1K-500-1200-PC8 | 500-1200 | NO Liquid Cooling | NO Dielectric Mirror |
UHSP-1K-500-1200-PC8-WCS1 | 500-1200 | Liquid Cooling | NO Dielectric Mirror |
UHSPDM-1K-500-1200-PC8 | 500-1200 | NO Liquid Cooling | Dielectric Mirror |
UHSPDM-1K-500-1200-PC8-WCS1 | 500-1200 | Liquid Cooling | Dielectric Mirror |
HSP-1K-850-1650-PC8 | 850-1650 | NO Liquid Cooling | NO Dielectric Mirror |
HSP-1K-850-1650-PC8-WCS1 | 850-1650 | Liquid Cooling | NO Dielectric Mirror |
HSPDM-1K-850-1650-PC8 | 850-1650 | NO Liquid Cooling | Dielectric Mirror |
1024 x 1024 Spatial Light Modulator
High Speed with High Phase Stability – Great care was taken in the design of the 1024 x 1024 silicon backplane to enable high speed operation while simultaneously maximizing phase stability. The 1024 x 1024 SLM is incredibly fast with liquid crystal response times ranging from 0.6 to 8 ms (wavelength dependent) for a full wave of modulation. In our ultra-high speed model customers can control the temperature set point to find the perfect balance between switching speed and phase stability.
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Common Specifications
Resolution: 1024 x 1024
Array Size: 17.40 x 17.40 mm
Pixel Pitch: 17 x 17 µm
Fill Factor: 97.20 %
0th Order Diffraction Efficiency: 75 – 87 %
0th Order Diffraction Efficiency: 92 – 98 % (dielectric mirror)
Ordering Information – Contact Us or Request Quote Online
| Standard Calibration Wavelengths | HIGH SPEED Liquid Crystal Response Time | Calibrated Wavefront Distortion | ||
| AR Coating Range 488 – 850 nm | AR Coating Range 500 – 1200 nm | AR Coating Range 850 – 1650 nm | ||
| 532 nm | ≤ 1.0 ms | ≤ 1.4 ms | – | λ/5 |
| 635 nm | ≤ 1.3 ms | ≤ 1.8 ms | – | λ/6 |
| 785 nm | ≤ 1.8 ms | ≤ 2.4 ms | – | λ/7 |
| 1064 nm | – | ≤ 3.4 ms | ≤ 5.5 ms | λ/10 |
| 1550 nm | – | – | ≤ 8.0 ms | λ/12 |
| Standard Calibration Wavelengths | ULTRA HIGH SPEED Liquid Crystal Response Time | Calibrated Wavefront Distortion | ||
| AR Coating Range 488 – 850 nm | AR Coating Range 500 – 1200 nm | AR Coating Range 850 – 1650 nm | ||
| 532 nm | ≤ 0.6 ms | ≤ 0.7 ms | – | λ/5 |
| 635 nm | ≤ 0.7 ms | ≤ 0.9 ms | – | λ/6 |
| 785 nm | ≤ 0.9 ms | ≤ 1.2 ms | – | λ/7 |
| 1064 nm | – | ≤ 1.7 ms | ≤ 2.0 ms | λ/10 |
| 1550 nm | – | – | ≤ 3.9 ms | λ/12 |
Graphs & Figures
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Video: Meadowlark Spatial Light Modulators at Quantum 2.0 2023
Geometric-phase microscopy (GPM) uses changes in the phase of light passing through biological specimens to yield high-resolution and high-contrast images, instead of relying on the attenuation of light used conventionally. Polarization optics and a spatial light modulator generate spatially variant polarization states of light that interact with the sample, creating a relative phase shift between transmitted and reflected light waves. By analyzing the phase information, GPM can reveal details not visible with other microscopy techniques. GPM is an effective non-invasive tool for live cell and tissue studies, with potential to enhance biological systems knowledge.
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