Utilizing Judson’s InGaAs Elements and Arrays for Infrared Detection

上海仪舶实验室自动化 25-04-12 15:16:46

Utilizing Judson’s InGaAs Elements and Arrays for Infrared Detection

Teledyne Judson Technologies provides a range of detector options for short-wave infrared sensing. One key material, InGaAs, enables both fast photodiodes as well as a very broadband response within the NIR and short-wave infrared. These sensors can be cooled to further improve their sensitivity, and can be paired with Teledyne Judsons preamplifiers and TE controllers to give a full sensing system.

Key Features

Wide dynamic range

High sensitivity and linearity

Spectral range from 0.8 µm to 2.6 µm

Uncooled and cooled sensor options

Stable and predictable temperature response

Applications

Raman spectroscopy

NIR-FTIR

IR fluorescence

IR Spectroscopy

Gas analysis

Breath analysis

Chemical detection

Blood analysis

Metabolite/glucose monitoring

Optical sorting

Pyrometry/Radiometry

Optical power monitoring

Laser diode monitoring

Laser burn-in

Laser detection and position measurement

Optical communication

Single Element Infrared Detectors

Single Element Infrared Detectors

Image Credit: Teledyne Judson Technologies

Teledyne Judson Technologies’ supplies high-performance single-element infrared detectors made with Indium Gallium Arsenide (InGaAs). These are in a range of sizes, from 40 microns to several millimeters in the diameter of the active area, and support different cutoffs from 1.7, 1.9, 2.2, 2.4 and 2.6 microns to ensure you get the highest performance and lowest dark current from your sensor for the signals you are capturing.

Teledyne specializes in full-service sales, support, andJudson’s engineering team provides custom design services for more demanding applications. The team is happy to disucss your unique requirements!

Linear Arrays

Teledyne Judson Technologies also offers multichannel linear infrared arrays with high sensitivity, high speed, and low dark currents that can be tailored to individual needs. The sensors are designed for applications requiring precise, fast optical measurements, such as FTIR, IR laser, or other spectroscopy, multipoint pyrometry, remote sensing, and life sciences.

Utilizing Judson’s InGaAs Arrays for Infrared Detection

Image Credit: Teledyne Judson Technologies

Teledyne Judson IR sensors have low crosstalk and excellent uniformity. They are available in various pixel architectures and cooling options.

Advantages of InGaAs

InGaAs detectors have four cutoff options: 1.9 µm, 2.2 µm, 2.4 µm, and 2.6 µm. Figure 1 depicts the typical response of the J22 and J23 Series InGaAs photodiodes at room temperature.

Utilizing Judson’s InGaAs Arrays for Infrared Detection

Figure 1. Responsivity vs. Wavelength for InGaAs @ 22 °C. Image Credit: Teledyne Judson Technologies

Utilizing Judson’s InGaAs Arrays for Infrared Detection

Figure 2. Typical D vs. Wavelength. Image Credit: Teledyne Judson Technologies

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