InGaAs photodiode near-infrared line-scan arrays are available with 50-µm2 pixels fabricated in array lengths of 128 to 512 elements. Their wavelength response is 0.8 to 2.5 µm, with readout rates u¥to 107 pixels/s. Static-shift registers, on-chi¥analog amplification, and double-correlated sampling allow them to be used in applications ranging from high-frame-rate on-line processing control to slow-scan near-infrared spectroscopy and hot-spot imaging.
Modular laser-diode controller
