PbSe 1 - 5 µm

The BXP series already reaches a high sensitivity when uncooled at room temperature. The maximum is at 3.8 µm. The D* value (l pk, 1000 Hz, 1 Hz) is usually specified with 1.8 x 1010 cm Hz^1/2 W^-1 (at least 1.2 x 10¹⁰). Several types are available with element sizes ranging from 1x1 to 6x6 mm² in TO5 or TO8 housing. They are tested with 35 V/mm over the detector and with a 1 MW resistor in series.

The BXT series comes with a single or double level TE cooling. With single level cooling the detector reaches an operating temperature of -25 ºC, with double level cooling even -35 or -50ºC. A wavelength with maximum sensitivity is 4 to 4.5 µm. D* values are between 2.8 and 3.5 x 10¹⁰ cm Hz^1/2 W^-1, the time constant is 6 or 12 µs. Detectors are available in TO8, TO37, and TO66 cans.

MIRA4 is a four-channel detector that can detect up to four different gases. In the basic configuration four narrow-band filters are integrated for the detection of C_mH_n, CO₂, and CO. The fourth filter acts as a reference.