Photonis’ Hi-QE photocathode technology provides a unique combination of extremely low dark counts, fast response time, and high quantum efficiency.
- High sensitivity efficiency
- High collection efficiency
- Low noise
- Long life
- Wide variety of formats
Photonis offers the Hi-QE photocathode option in four versions: UV, blue, green and red.
|QY at 200nm, %||QY at 270nm, % Y||QY at 400nm, %|
|Averaged QY [380-480nm], %||QY at 500nm,%|
|Averaged QY [520-800nm], %s|
Hi-QE photocathodes are available in a variety of spectral detection ranges to fulfill specific application requirements.
Hi-QE photocathodes lower dark counts as much as 10X, while boosting QE 50% over traditional S20 or S25 photocathode technologies.
Photonis' Hi-QE photocathodes are available in four options, designed to heighten the spectral response across specific wavelengths when compared to broader spectral response photocathodes of S20 and S25. The Hi-QE UV offers superior detection to 330nm, while the Hi-QE blue provides improved response through 400mn. The Hi-QE green option provides unparalleled response from 400-550 nm, while the new Hi-QE Red photocathode is optimized for the 400-900nm spectral range, providing 50% greater quantum efficiency. At 650nm, Hi-QE Red provides 22% QE - versus 16% in the standard S25 photocathode. Notably, at 900nm the Hi-QE red photocathode offers a 50% improvement over the traditional S25 photocathode.
Hi-QE Photocathodes are available in these photon detectors: