HgCdTe Photovoltaic IR Detectors

MCT detector is an infrared detector with tunable bandgap in which the detection structure is made of mercury, cadmium and telluride, also known as the HgCdTe detector. It is a semiconductor electro-optical device that converts infrared radiation into an electrical signal.

HgCdTe detectors show superior detectivity, in some cases approaching theoretical limits of detection. Additionally, very short time constants allow measurements with very high temporal resolution. Combination of those two features helps achieve best possible results in a variety of applications.

MCT photodiodes are crafted to work best for a specific wavelength, ranging between 1 and 16 um, often at background-limited detectivity - meaning that they are the best solution for MWIR and LWIR detection.

The high performance of our detectors makes them suitable for a wide range of applications. The key applications our detectors are primarily utilized for include gas sensing and analysis, railway transport safety, environmental monitoring, as well as in security and defense applications like heat seeking.

At VIGO Photonics, the optical immersion is created directly with the use of the substrate on which the active layer of the detector is placed. This means the lens is an integral part of the device – no adhesives or other joints that could generate losses are used for its fabrication. A monolithic lens does not need to be aligned by the customer in any way, and it reaches its maximum efficiency already during the manufacturing process.

For more information please visit our website: https://vigophotonics.com/articles/immersion-lenses-technology/

Our detectors are optimized for MWIR (3-8μm) and LWIR (8-16μm) spectral ranges, however the specific wavelength range that detectors can cover depends on the type of detector. For more precise and up-to-date information, you should refer to the product specifications you can find on our website.

While we offer a diverse selection to cover most common applications, we understand that some applications may require a more specialized solution. If you have a very specific application that requires unique specifications not found in our current catalog, we can manufacture custom products matching your requirements. Please feel free to reach out to our sales team to initiate a discussion about your specific requirements.

Our devices can operate in the 10% to 80% humidity, in the –20°C to +30°C ambient temperature range. Operation at >30°C ambient may reduce performance for standard Peltier coolers. Ask for devices that can operate in the +30°C to +80°C ambient temperature range.

Our application engineers are ready to provide a beginning-to-end support in integration of our products, starting from application advice and sample delivery, to help in analysis of your results, tailored electronics to cooperate with the detector and industrialization of the final product.