InfraRed Associates, Inc. offers InSb/HgCdTe two colour infrared detectors for both commercial and military applications.

These detectors are constructed in the form of a sandwich and respond to different buy adjacent regions of the infrared spectrum.
The InSb/HgCdTe two colour sandwich has the top layer of InSb responding from 1µ to 5.5µ and the lower element of HgCdTe responds from 5.5µ to 125.µ.

Infrared Associates

2 Colour Infrared Detectors - InSb/HgCdTe

InfraRed Associates, Inc. offers Cooled HgCdTe infrared detectors for both commercial and military applications.

Infrared Associates

Cooled HgCdTe Infrared Detectors

InfraRed Associates Inc. offer a complete line of photoconductive Mercury cadmium Telluride (HgCdTe) detectors.
The wavelength response can be varied by adjusting the alloy composition of this ternary compound.

The FTIR series of HgCdTe detectors are designed to achieve optimum performance in the Fourier Transform Infrared spectrometers.
The detectors offer the highest sensitivities with cut-offs ranging form 750 to 400cm-¹.

Infrared Associates

HgCdTe Infrared Detectors

The photovoltaic Indium Antimonide detectors offered by InfraRed Associates, Inc., are p-n junctions formed by mesa techniques using crystal material.

The InSb detectors exhibit excellent electro-optical performance in the 1µm to 5.5µm wavelength region and are suitable for a range of commercial and military applications.

Infrared Associates

InSb Infrared Detectors

Special classes of solid-state detectors for very specific applications are Mercury Cadmium Telluride devices.These devices can be manufactured with varying stochiometries to yield detectors that can be sensitive to very long wave infrared radiation.

These devices enable the detection of infrared radiation with relatively high efficiencies. However, due to internal mechanisms these devices are heavily susceptible to high surrounding temperatures.
Cooling to liquid nitrogen temperature will negate much of these effects.
Available in both single channel and multi-channel versions, a host of applications can be covered. Consider for instance the use of MCT-detectors in absorption spectroscopy, 2-D vibrational spectroscopy and ultrafast pump-probe spectroscopy.

Especially with certain types of spectroscopy, it can be beneficial to have a two-line array.
Our supplier, Infrared Associates can meet this demand with its custom array manufacturing.
A system, including data-acquisition electronics gives you access to a complete turnkey solution to move your experiment into the infrared.

Infrared Associates

Mid-Infrared/Far-Infrared Detectors

The HgCdTe detectors can be fabricated in quadrant arrays for tracking and positioning systems, scanning systems and night vision equipment.

The quadrant arrays require a common lead between the four elements in either the X or Y direction.

Infrared Associates

Quadrant Arrays HgCdTe Detectors

InfraRed Associates Inc. offers high quality thermoelectrically cooled HgCdTe detectors. They are optimised in the 2µm to 5µm but may be manufactured for other bandwidths.The detectors are mounted on two-stage or three-stage coolers in TO package.

Infrared Associates

Thermoelectric Cooled HgCdTe Detectors

For noise sensitive experiments, New Focus offer balanced receivers that cancel out laser-intensity noise in experimental set-ups that produce a reference signal.

These receivers can eliminate the need for lock-in amplifiers and can make all the difference when you"re trying to see a small signal.

125 kHz Nirvana™ Photoreceivers : Cut the effects of laser noise by 50dB, making even small signals easy to see.

650 & 800 MHz Balanced Receivers : Ideal for FM spectroscopy, absorption spectroscopy, or ellipsometry, these 650 and 800 MHz balanced photoreceivers can make all the difference when you're trying to see small signals.

New Focus

Balanced Receivers

New Focus offer :12 to 25 GHz Datacom Receivers & Detectors: Designed specifically for characterising VCSELs and 10 Gbit/s systems operating at 850 nm.

10 Gbits/s 850nm VCSEL: Designed for use in laboratory applications or for test and measurement of 10 Gbit/s datacom devices.

New Focus

Datacom Receivers & Transmitters

For general-purpose applications, New Focus offer high-sensitivity, low frequency receivers as well as receivers with large active areas for efficient light collections.

Femtowatt Photoreceivers: Ideal when you need the ultimate in low light level detection. They are sensitive from the UV all the way to IR, giving you the flexibility to work wherever you get the most signal.

200-kHz Photoreceivers: Ideal optical front ends for systems requiring low-noise input with modest bandwidth.

Nanosecond Photodetectors: Ideal for use as a general-purpose detectors with Q-switched or cw lasers. Their large diameter and DC response makes alignment easy.

Large Area Photoreceivers: With extra large 5 or 8 mm diameter detectors in these photoreceivers, you"ll be able to tweak your experiment without worrying about the beam wondering off the detector.

125 MHz & 1 GHz Receivers: 125 MHz Receivers offer a well balanced combination of gain, bandwidth and low noise over the DC-125 MHz frequecy range. The 1 GHz Receivers are used in experiments requiring up to 1 GHz bandwidths

New Focus

General Purpose Receivers

For high-speed applications, New Focus offer time-domain-optimised and frequency-domain-optimised high speed detectors.

The frequency-domain-optimised detectors provide a flat response over a wide bandwidth and are ideal for detecting signals at RF and microwave frequencies. The time-domain-optimised detectors provide ring-free detection of optical pulses and are ideal for digital telecommunications applications.

• 12 GHz Photoreceivers: Ideal for applications that require high sensitivity, high speed and clean responses
• 25 GHz Photodetectors:Designed to offer the ideal combination of high-speed performance (up to 25 GHz) and optical-input flexibility.
  
• 45 & 60 GHz Photodetectors: They make ultra high-speed measurements easy and can connect directly to test instruments like digital oscilloscopes, spectrum analysers for lightwave time- and frequency-domain measurements 18.5 ps Photodetectors: Ideal for applications that require fast time resolution.
  
• 12 ps Photodetectors: Ideal for time-domain applications in high-speed digital fiber-optic communications systems.

New Focus

High Speed Detectors & Receivers