Andor iDus InGaAs 491 array series provide the most compact and optimized research-grade platform for Spectroscopy applications up to either 1.7 or 2.2 μm. The Thermo-Electrically cooled, in-vacuum sensors reach cooling temperatures of -90ºC where the best signal-to-noise ratio can be achieved for the majority of the applications in this spectral region.
Andor’s iDus InGaAs 1.7 array detector series provides the most optimized platform for Spectroscopy applications up to 1.7 µm. The TE-cooled, in-vacuum InGaAs camera sensors reach cooling temperatures of -90°C where best Signal-to-Noise ratio can be achieved. Indeed dark current will improve moderately below -90°C where scene black body radiation will dominate, while Quantum Efficiency of the sensor will be greatly impacted at these lower temperatures and lead to a lower Signal-to-Noise ratio.
0.6 to 1.7 µm – Operating wavelength range
Peak QE of > 85% – High detector sensitivity
TE cooling to -90°C – Negligible dark current without the inconvenience of LN2
UltraVac™ – Permanent vacuum integrity, critical for deep cooling and sensor performance
Single window design – Delivers maximum photon throughput
25 µm pixel width option – Ideal for high-resolution NIR spectroscopy
Simple USB 2.0 connection – USB plug and play – no controller box. Inputs & Outputs: External Trigger, Fire and Shutter TTL readily accessible. I2C for the more adventurous user
Software selectable output amplifiers – Allows user to optimize operation with choice of High Dynamic Range (HDR) or High Sensitivity (HS) modes of operation
Minimum exposure time of 1.4 µs – Enables higher time-resolution and minimization of dark current contribution for applications with reasonable signal level
