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Advanced LTO Infrared Detectors

Advanced single channel voltage mode detectors for FTIR instruments.

Excellent linearity and fast response to IR flux change.

-20 to +55°C
operating temperature

High-End Ultrathin LTO Detectors

The Advanced LTO Infrared Detectors combine the benefits of existing LTO and DLaTGS detectors. With this thin design, detector performance is improved due to a 4x better signal.

The Advanced LTO Infrared Detectors offer the freedom to choose the speed that suits each application. With transmission window options that allow for various configurations, such as a KBr window that transmits up to 30 μm and is also available with a parylene moisture-protective coating. High performance can be maintained up to 1 kHz, while the detector can be used out to approximately 10 kHz.

Additionally, the Advanced LTO Infrared Detectors are tested to operate at room temperature with no depoling concerns, as is typical for DLaTGS detectors. Under increasing IR flux, high linearity is observed, as well as a high Curie temperature of 610 °C.

The Advanced LTO Infrared Detectors are ideal for FTIR spectroscopy. They can also be appropriate for the measurement and monitoring of laser power at long wavelengths.

Bias Circuit

This is the suggested circuit for using these detectors. 

The output signal is an analog voltage as shown in the bias circuit. The detector responds to changing incident IR flux and the response voltage rides on top of a DC offset voltage.  
(Drawing version 01, created Jan 2024. Please download the FAQ file to find latest version).

Drawing

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A pyroelectric IR detector is a thermal detector in that it responds to the change in heat (IR) absorbed on its surface. Thermal detectors are polychromatic with a very wide spectral bandwidth.

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Uwe Asmus
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WHAT YOU SHOULD KNOW ABOUT OUR Advanced LTO Detectors

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Uwe Asmus
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Uwe Asmus
LASER COMPONENTS Germany GmbH
82140 Olching
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