Meadowlark SLM P1920 A spatial light modulator (SLM) is an electrically programmable device that modulates light according to a fixed spatial (pixel) pattern. SLMs have an expanding role in several optical areas where light control on a pixel-by-pixel basis is critical for optimum system performance.

Following their philosophy of producing high quality, research-grade devices, Meadowlark have developed the P1920, the most advanced high resolution spatial light modulator on the market.  Employing a high speed backplane similar to that of the P512, the P1920 drives the phase ripple across the SLM to as low as 0.1%, giving higher amplitude stability in the reflected image. This device is inherently broadband with a high fill factor and can be calibrated for full 2π phase modulation at a range of wavelengths.

The P1920 has seen increasing use in two-photon microscopy and optogenetics as the high resolution format allows users to achieve beam steering across whole images when using a 40x objective.

 

Download the datasheet

 

Unique Features:

  • High resolution
  • Pure analog phase control
  • High first order efficiency
  • High reflectivity
  • High power handling
  • Compact design
  • Wavelengths from 400 – 1650 nm
Standard Design Wavelengthsλ = 405 nmλ = 532 nmλ = 635 nmλ = 785 nmλ = 1064 nmλ = 1550 nm
Array size17.1 x 10.6 mm
Zero-order diffraction efficiency66 - 73%70 - 74%71 - 76%60 - 69%71 - 80%79 - 85%
External windowAR coated, Ravg < 1% from 400 - 800 nmAR coated, Ravg < 1% from 600 - 1300 nmAR coated, Ravg < 1% from 850 - 1650 nm
Fill factor (standard)95.7%
Format1920 x 1152 (2,211,840 active pixels)
Phase stroke (double pass)2π @ λ
Pixel pitch9.2 x 9.2 μm
Phase rippleAs low as 0.1%, based on SLM configuration
Reflected wavefront distortion (RMS calibrated)≤ λ/3≤ λ/5≤ λ/6≤ λ/7≤ λ/10≤ λ/12
Liquid crystal response time, 10-90% (standard)≤ 6 ms≤ 9 ms≤ 12 ms≤ 19 ms≤ 5 ms≤ 33 ms
Max. liquid crystal switching frequency (standard)≤ 167 Hz≤ 111 Hz≤ 83 Hz≤ 52 Hz≤ 40 Hz≤ 30 Hz