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Since the proper wavelengths are critical in matching both LED emitters and detector we are pleased to present the Marktech Spectrum Selector Guide©.

Whether you are simply using an LED as a visible light source (such as a VMS sign) or to detect the chemical properties of various materials, understanding what wavelengths work best is crucial. Marktech with almost 30 years' experience in the optoelectronic industry helps make things a bit simpler by presenting our spectrum selector guide.

The guide is organized by the spectrum range beginning at the 265nm UV (ultra violet) range and going up to 2600nm (shortwave infrared). There are three product categories beginning left to right, Detectors, Emitters and High Brightness LEDs. Marktech groups its various products by wavelengths under each category. By simply clicking each button on either side of the spectrum a listing of all our products that correspond to these wavelengths will appear. In addition next to each part number we have attached the spec sheet and a link (if applicable) to Digi-key to obtain samples.

Related Resource: Spectral Range



UV Detectors

Our UV detectors offer sensitivity ranges from 150nm - 570nm typical using materials including GaP, GaN and SiC. These die can be packaged individually in a variety of hermetically sealed packages or multiple die can be integrated in a custom package to suit your specific application. Marktech UV detectors offer superior stability over time and high device sensitivity with low dark current.

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Silicon Photo Detectors

Marktech offers a broad line of silicon photo diodes in a variety of package types ranging from through-hole plastic and metal-can to surface mount. These devices are available with standard silicon die having a spectral sensitivity of approximately 400nm - 1100nm or with special UV enhanced silicon chips with sensitivity in the lower UV-A range. Custom active areas and multi-element chips can also be manufactured to suit your application.

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Silicon Photo Transistors

Marktech offers a broad line of silicon photo Transistors in a variety of package types ranging from miniature metal can to ceramic packages. These devices are available with standard silicon die having a spectral sensitivity of approximately 400nm - 1100nm or with special UV enhanced silicon chips with sensitivity in the lower UV-A range. Custom active areas and multi-element chips can also be manufactured to suit your application.

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Avalanche Photodiodes

Marktech APD's have an internal gain mechanism, fast time response, low dark current and high sensitivity in the near infrared region. These APD's are recommended for applications that require high bandwidth, or where internal gain is needed to overcome high pre-amp noise. In addition, Marktech APD's provide higher sensitivity than a standard photodiode and are ideal for extreme low-level light detection and short pulse detection.

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InGaAs Photodiodes

Photo Diode chip active area sizes from 0.1mm to 3.0mm are available to provide the optimum balance between low dark current, high speed and light sensitivity. This allows for increased flexibility and options in a variety of applications ranging from fiber optics and high-speed optical communications to medical and chemical analysis.

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Custom Detectors

Not sure which detector and package your concept requires? Let the optoelectronic experts at Marktech assist you. Our engineers take the time to thoroughly understand your requirements and can guide you every step of the way. We will help you determine if you need a single detector or an array; plus, we'll examine what package(s) and wavelength(s) your application will require.

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280 - 420
440 - 700
720 - 950
625 - 850
1020 - 1720
280 - 2,600
470 - 950
150 - 450
400 - 1100
400 - 1100
800 - 950
800 - 1750
150 - 1720
450 - 624
450 - 624
450 - 624
400 - 650
450 - 624
450 - 624
450 - 624
280 - 2600
450 - 624
450 - 470
450 - 527
450 - 527
450 - 527
450 - 527
450 - 527
760 - 1720
280 - 400
450 - 527