Detectors
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Detectors for Accurate Light Measurements
Frequently Asked Questions
A detector is a device that converts electromagnetic radiation (such as light) into an electrical signal.
There are several types of detectors, including photodiodes, photomultiplier tubes (PMTs), avalanche photodiodes (APDs), charge-coupled devices (CCDs), and complementary metal-oxide-semiconductor (CMOS) sensors.
A photodiode is a semiconductor device that generates a current proportional to the incident light intensity. A photomultiplier tube, on the other hand, uses a photocathode to generate electrons that are then multiplied by a series of dynodes, resulting in a much higher current output.
The dark current of a detector is the electrical current that flows through the detector even when no light is present. It is caused by thermally generated carriers in the detector material.
The dynamic range of a detector is the ratio of the maximum measurable signal to the minimum detectable signal. A detector with a high dynamic range is able to detect both weak and strong signals.
Quantum efficiency is the ratio of the number of electrons generated by a detector per incident photon. A detector with a high quantum efficiency is able to convert a large percentage of incident photons into electrical signals.
The responsivity of a detector is the ratio of the output signal to the input signal. It is a measure of how efficiently the detector converts incident light into an electrical signal.
The spectral response of a detector is the range of wavelengths of light that the detector is sensitive to. Different types of detectors have different spectral responses, which can be tailored to specific applications.
The noise equivalent power (NEP) of a detector is the minimum detectable power level that can be distinguished from noise. A detector with a low NEP is able to detect very weak signals with high accuracy.
Looking for high-quality light detectors for your industrial, scientific, or commercial application? Look no further than FindLight! We offer a comprehensive selection of detectors and photosensors from leading manufacturers worldwide, including photodiodes, photomultiplier tubes, avalanche photodiodes, and more. Whether you're looking for low-light-level detection, high-speed performance, or ultra-high sensitivity, we have the right detector for your needs. Our detectors are ideal for a wide range of applications, including spectroscopy, imaging, sensing, and microscopy, among others. With our easy-to-use search filters, you can quickly and easily find the detector you need, based on parameters such as wavelength range, sensitivity, and package type. Plus, with our trusted network of suppliers, you can be sure that you're getting the best quality and performance possible. Shop with confidence for your light detection needs at FindLight!
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