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SWIR and MWIR LEDs

Marktech is one of a few limited manufacturers that supply emitters in the extended NIR wavelength or SWIR (Short Wavelength Infrared). The SWIR spectrum spans from 1020nm to 3000nm wavelengths. In addition, we are now providing mid-wave infrared (MWIR) LEDs . The MWIR spectral range encompasses 3000nm to 5000nm (3µm to 5µm). Our standard product offering includes wavelengths from 1020nm to 4300nm and operating currents ranging from 20mA to 350mA for high-power applications.

Marktech’s series of SWIR and MWIR LEDs are available in a variety of package types such as ATLAS hermetic SMD, metal hermetic TO-cans, conventional surface mount device (SMD), plastic molded through-hole, chip scale packaging (CSP), chip-on-board (COB), starboards, linear boards, and custom packaging designed to meet specific OEM requirements. These short and mid-wave IR emitter devices achieve optimal performance for gas monitoring, moisture sensing, medical diagnostics, flame detection, chemical analysis, fiber optical communication, military, optical switching, and material sorting. The SWIR spectral range is also known as the Extended NIR or NIR II (NIR2).

 

Inspection of silicon wafers

SWIR LED Emitters

Product Photo Peak Wavelength Angle Power Bandwidth Conditions IF Forward Voltage Size Buy Now Specs
MT51020-IR 1020 20 20 50 100 1.25 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM2010-496-IR 1020 150 17mW/sr 40 350 1.2 3.8x3.8mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM2010-480-IR 1020 150 16mW/sr 50 350 1.2 6.0x4.7mm Flat Top SMD (2 pin) Price Quote
MTSM4410SMR2 1030 40 13 30 50 1.20 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTE4110C2 1040 120 18.6 34 50 1.32 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE4110D4 1040 110 26.3 35 50 1.32 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE4110N-WRC 1040 16 11.9 34 50 1.33 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE4110W-WRC 1040 100 12.8 35 50 1.33 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE4110N5 1040 5 28.5 40 50 1.30 5mm Plastic Round (2 pin) Digikey
Mouser
MTE4110N2 1040 45 19.5 36 50 1.30 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM4110MT2-BK 1040 55 9.0 36 50 1.30 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTSM4110SM1 1040 130 18 43 50 1.35 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE4110C1 1040 25 24 40 50 1.30 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM4410SMR2S 1040 40 13 30 50 1.20 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTE4110C5 1040 15 26.6 42 50 1.3 3mm Plastic Round Lens (2 pin) Digikey
Mouser
MTE4110NK1-WRC 1040 9 13 35 50 1.30 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE4110NK35-WRC 1040 4 14 35 50 1.30 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE5010-015-IR 1050 6 1.6 100 20 1.15 TO-46 Metal Can Domed (2 pin) Digikey
Mouser
MTE5010-095-IR 1050 40 19 100 50 1.2 TO-46 Metal Can Flat (2 pin) Digikey
Mouser
MTE5010-525-IR 1050 20 4 50 20 1.15 5mm Plastic Round (2 pin) Digikey
Mouser
MTE5010-995-IR 1050 45 7.5 80 50 1.2 3.5x2.7mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM5010-199-IR 1050 100 1.2mW/sr 80 50 1.2 3.2x1.6mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM5010-843-IR 1050 50 11 40 50 1.3 3.2x1.6mm Domed Top SMD (2 pin) Digikey
MTSM5010-496-IR 1050 120 38 50 350 1.50 3.8x3.8mm Flat Top SMD (2 pin) Mouser
MT51060-IR 1060 20 8 80 100 1.25 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM6410SMR2 1060 40 12.6 36 50 1.10 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTSM6410SMR2S 1060 40 12.6 36 50 1.10 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTE7110C2 1070 120 18.5 38 50 1.30 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE7110D4 1070 110 26.3 37 50 1.30 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE7110N-WRC 1070 16 12.2 37 50 1.34 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE7110W-WRC 1070 100 13.3 38 50 1.31 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE7110N5 1070 5 30 45 50 1.30 5mm Plastic Round (2 pin) Digikey
Mouser
MTE7110N2 1070 45 21.0 40 50 1.30 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM7110MT2-BK 1070 55 9.6 37 50 1.32 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTSM7110SM1 1070 130 21 44 50 1.35 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE7110C1 1070 25 25 45 50 1.30 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM1201SMR2 1195 40 5 51 50 0.96 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTE0012-526-IR 1200 25 3.0 70 20 0.9 5mm Plastic Round (2 pin) Digikey
Mouser
MTE1200C2 1200 120 9.5 66 50 1.14 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE1200D4 1200 110 13.8 65 50 1.08 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE1200N-WRC 1200 16 5.9 61 50 1.10 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE1200W-WRC 1200 100 6.1 60 50 1.09 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE1200N5 1200 5 13.5 70 50 1.05 5mm Plastic Round (2 pin) Digikey
Mouser
MTE1200N2 1200 45 10 70 50 1.05 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM1200MT2-BK 1200 55 4.6 63 50 1.06 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTSM0012-194-IR 1200 120 11 73 50 1.1 3.2x1.6mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM0012-844-IR 1200 40 12 73 50 1.1 3.2x1.6mm Domed Top SMD (2 pin) Digikey
Mouser
MTSM1201SM1 1200 130 10 72 50 1.06 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE0012-996-IR 1200 60 4.5 62 20 1.0 3.5x2.7 mm Flat Top SMD Digikey
Mouser
MTSM1201SMR2S 1200 40 5 51 50 0.96 5.0x5.0 SMD Dome Lens on Board Digikey
Mouser
MTE1201C1 1210 25 12 75 50 1.10 5mm Plastic Round (2 pin) Digikey
Mouser
MTE1300-WRC 1300 92 5.6 70 50 0.8 TO-46 Metal Can Flat Lens (2 pin) Digikey
Mouser
MTE0013-526-IR 1300 20 4.4 70 20 0.85 5mm Plastic Round (2 pin) Digikey
Mouser
MTE1300C2 1300 120 8.7 70 50 1.05 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE1300D4 1300 110 12.9 71 50 1.07 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE1300N-WRC 1300 16 5.3 69 50 1.05 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE1300W-WRC 1300 100 5.8 69 50 1.07 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE1300N5 1300 5 13.5 70 50 1.05 5mm Plastic Round (2 pin) Digikey
Mouser
MTE1300N2 1300 45 9.0 70 50 1.00 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM1300MT2-BK 1300 55 4.0 70 50 1.03 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTSM0013-844-IR 1300 40 11 78 50 1.1 3.2x1.6mm Domed Top SMD (2 pin) Digikey
Mouser
MTSM0013-194-IR 1300 40 11 78 50 1.1 3.2x1.6mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM1301SM1 1300 130 9 76 50 1.06 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE0013-996-IR 1300 60 5.5 69 20 1.0 3.5x2.7 mm Flat Top SMD Digikey
Mouser
MTE1301C9 1300 25 9 80 50 1.0 3mm Plastic Flat/Dome Lens - (2 pin) Price Quote
MTE1301C1 1310 25 10 80 50 1.00 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM1301SMR2 1350 40 4.6 60 50 0.88 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTSM1301SMR2S 1350 40 4.6 60 50 0.88 5.0x5.0 SMD Dome Lens on Board Digikey
Mouser
MTE6114C1 1445 25 6.0 115 50 1.00 5mm Plastic Round (2 pin) Digikey
Mouser
MTE6014-526-IR 1450 20 3.6 150 20 0.8 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM6114MT2-BK 1450 55 2.5 100 50 1.00 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTE6114C2 1460 120 5.6 106 50 1.00 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE6114D4 1460 110 8.6 105 50 1.05 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE6114N-WRC 1460 16 3.7 103 50 1.02 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE6114W-WRC 1460 100 3.9 103 50 1.16 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE6114N5 1460 5 7.5 100 50 1.00 5mm Plastic Round (2 pin) Digikey
Mouser
MTE6114N2 1460 45 6.0 100 50 1.00 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM6014-194-IR 1460 120 5.6 118 50 1.05 3.2x1.6mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM6014-844-IR 1460 40 6 118 50 1.05 3.2x1.6mm Domed Top SMD (2 pin) Digikey
Mouser
MTSM6114SM1 1460 130 6 115 50 1.06 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE6014-996-IR 1460 60 6 118 50 1.05 3.5x2.7 mm Flat Top SMD Digikey
Mouser
MTSM6414SMR2 1460 40 4.3 40 50 0.88 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTSM6414SMR2S 1460 40 4.3 78 50 0.88 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTE5115C1 1545 25 4.6 115 50 1.00 5mm Plastic Round (2 pin) Digikey
Mouser
MTE5015-526-IR 1550 20 1.8 130 20 0.75 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM5015-194-IR 1550 120 6 120 50 1.05 3.2x1.6mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM5015-844-IR 1550 40 6 120 50 1.05 3.2x1.6mm Domed Top SMD (2 pin) Digikey
Mouser
MTE5115C2 1550 120 4.7 98 50 1.07 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE5115D4 1550 110 6.3 100 50 1.04 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE5115N-WRC 1550 16 3.1 103 50 1.07 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE5115W-WRC 1550 100 3.2 103 50 1.31 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE5115N5 1550 5 6.5 100 50 1.00 5mm Plastic Round (2 pin) Digikey
Mouser
MTE5115N2 1550 45 4.5 100 50 1.00 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM5115MT2-BK 1550 60 2.1 100 50 1.05 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTSM5115SM1 1550 130 4.6 125 50 1.06 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE5015-996-IR 1550 60 6 120 50 1.05 3.5x2.7 mm Flat Top SMD Digikey
Mouser
MTSM5415SMR2 1550 40 3.8 90 50 0.84 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTSM5415SMR2S 1550 40 3.8 90 50 0.84 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTE5115C9 1550 25 4 110 50 1.0 3mm Plastic Flat Lens - (2 pin) Price Quote
MTE5116C1 1635 25 4.4 120 50 1.00 5mm Plastic Round (2 pin) Digikey
Mouser
MTE5016-526-IR 1650 20 3.0 100 20 0.7 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM5016-199-IR 1650 100 1.7 130 50 1 3.2x1.6mm Flat Top SMD (2 pin) Digikey
Mouser
MTSM5016-843-IR 1650 50 3 130 50 1 3.2x1.6mm Domed Top SMD (2 pin) Digikey
MTE5116C2 1650 120 3.8 118 50 1.02 3mm Plastic Flat Lens - (2 pin) Digikey
Mouser
MTE5116D4 1650 110 5.5 113 50 0.97 3mm Plastic Domed Lens - (2 pin) Digikey
Mouser
MTE5116N-WRC 1650 16 3.0 115 50 0.99 TO-46 Metal Can Domed Lens - (2 pin) Digikey
Mouser
MTE5116W-WRC 1650 100 3.1 116 50 0.99 TO-46 Metal Can Flat Lens - (2 pin) Digikey
Mouser
MTE5116N5 1650 5 4.6 110 50 0.95 5mm Plastic Round (2 pin) Digikey
Mouser
MTE5116N2 1650 45 3.5 115 50 0.95 5mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTSM5116MT2-BK 1650 60 1.9 115 50 0.95 3.5x2.7 mm Flat Top SMD (2pin) Digikey
Mouser
MTSM5116SM1 1650 130 5 125 50 0.96 1.6x1.6 mm Square SMD (2 pin) Price Quote
MTE5016-996-IR 1650 60 1.5 100 20 0.7 3.5x2.7 mm Flat Top SMD Digikey
Mouser
MTSM5416SMR2 1650 40 3.3 100 50 0.77 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTSM5416SMR2S 1650 40 3.3 100 50 0.77 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTE2017-015-IR 1720 6 1 130 20 0.7 TO-46 Metal Can Domed (2 pin) Digikey
Mouser
MTE2017-095-IR 1720 45 1 130 20 0.7 TO-46 Metal Can Flat (2 pin) Digikey
Mouser
MTSM2017SMR2S 1720 40 3 106 50 0.75 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTSM2017SMR2 1735 40 3.0 106 50 0.75 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTE2117C1 1760 25 3 225 50 0.95 5mm Plastic Round (2 pin) Digikey
Mouser
MTSM1901SMR2 1870 40 2.4 100 50 0.73 5.0x5.0 mm SMD Dome Lens Digikey
Mouser
MTE1901C1 1885 25 2 150 50 0.90 5mm Plastic Round (2 pin) Digikey
Mouser
MTE1901W-WRC 1900 75 1.1 125 20 0.8 TO-18 Metal Can Flat Lens (2 pin) Digikey
Mouser
MTSM1901SMR2S 1900 40 2.4 100 50 0.73 5.0x5.0 mm SMD Dome Lens on Board Digikey
Mouser
MTE21000F-IR 2100 7.4 300 0.58 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE22000F-IR 2200 3.8 300 0.56 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE23000F-IR 2300 1.2 300 0.51 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE31000F-IR 3100 0.1 300 0.5 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE37000F-IR 3700 0.4 300 0.3 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE39000F-IR 3900 0.3 300 0.3 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE41000F-IR 4100 0.4 300 0.3 TO-5 Metal Can Flat Lens (3 pin) Price Quote
MTE43000F-IR 4300 0.1 300 0.3 TO-5 Metal Can Flat Lens (3 pin) Price Quote

Product Information

Discover the cutting-edge realm of short wave infrared (SWIR) technology with Marktech Optoelectronics’ innovative SWIR LEDs. These LEDs harness the power of short-wave infrared light, offering unparalleled performance and energy efficiency for many applications. Operating in wavelengths typically between 1000nm to 3000nm, SWIR LEDs penetrate materials more effectively than NIR LEDs, revealing characteristics invisible to the human eye and standard NIR cameras. Ideal for industrial inspection, night vision, spectroscopy, and medical imaging applications, Marktech’s SWIR LEDs are designed to meet the highest standards of quality and reliability. Experience the unseen with SWIR LEDs, unlocking new possibilities in the invisible spectrum.

The SWIR wavelength range also requires specialized optical detectors, as standard silicon detectors have a maximum sensitivity limit of approximately 1100nm. Marktech produces a line of 1.7µm and 2.6 µm InGaAs detectors optimized for sensing light in the SWIR wavelength range. Marktech’s SWIR LEDs satisfy a growing need for high-speed light emission in ranges not easily seen by standard detectors.

These detectors can be obtained as individual discrete components or combined with a silicon sensor to cover the complete spectrum of light from the visible to the SWIR range. Marktech also offers the option to produce multi-element devices with emitter and detector chips in the same package.

SWIR light is at the boundary between visible and thermal imaging, and this spectral range has unique properties. As a result, the market for SWIR devices is increasing. They are being used in a variety of applications, including produce inspection, security, surveillance, anti-counterfeiting, and biomedical.

SWIR LED Features

High Penetration Capabilities

SWIR LEDs can see through fog, smoke, and dust and even penetrate certain materials, making them indispensable for industrial quality control, security, and search and rescue operations.

Unmatched Image Clarity

Imaging with SWIR LEDs can provide more explicit images than NIR LEDs in low-light conditions, enhancing the capabilities of imaging systems in industrial, medical, and security applications.

Versatility

With wavelengths ranging from 1000nm to 3000nm, our SWIR LEDs are suitable for various applications, from scientific research to commercial and industrial use.

Energy Efficiency

Designed for minimal power consumption, these LEDs offer an environmentally friendly solution that reduces operational costs.

Durability

Built to last, Marktech SWIR LEDs are available in hermetic packaging to ensure a longer lifespan, reducing the need for frequent replacements and maintenance.

Eco-Friendly

Compliant with environmental regulations, our SWIR LEDs are safe to use and contribute to a greener planet.

SWIR LED Applications

Medical Diagnostic Devices

SWIR bio fluorescence and absorbance can be used to analyze urine and blood chemistry analysis for early detection and measurement of critical biomarkers (sugar, cholesterol/lipids, etc.) of disease and underlying health conditions. SWIR LEDs combined with SWIR cameras can detect cancerous, or diseased tissue to differences in SWIR LED light absorption, which does not occur in the visible wavelength range.

Smoke, Fog, & Night Vision

SWIR LEDS allow InGaAs photodiode-based imagers to see through smoke, fog, dust, sand storms, clouds, rain, plastics, and certain organic materials, which is useful in military, firefighting, and police applications. SWIR imagers and detectors work equally well at day and night, unlike thermal imagers, which “bloom” or are blinded during daylight.

Short-Haul Fiber Optic Communications

1550nm SWIR light is the most common wavelength in fiber optic communication systems. 1550nm SWIR LED emitters paired with 1.7µm can provide components for transmitters and receivers in short-haul optical communications. SWIR LEDs and InGaAs quadrant photodiodes also find applications in short-range free-space communication systems. For longer distances, lasers are used in combination with photodiodes.

Silicon wafer inspection systems

SWIR light can pass through silicon, enabling the detection of invisible subsurface flaws using visible light sources.

Presence and Level Sensors

Depending on the specific SWIR LED light wavelength, SWIR light can be absorbed by, reflected from, or transmitted through a material, polymer, powder, fluid, chemical, or other media. SWIR wavelengths, where the material is highly absorbed SWIR light or where the material appears opaque or non-transparent, allow for the sensing of the presence or level of a media through a glass or plastic container or vessel. SWIR light is passed through the container, and InGaAs photodiode or SWIR cameras detect the light transmitted to gauge level or presence. In applications with open containers non-transparent to the SWIR wavelength required to sense the media, detection can be accomplished by transferring through the top opening in the vessel. Water presence and level can be sensed through plastic or glass containers using 1450nm LEDs. Water will absorb 1450nm SWIR light and appear dark. 1700nm SWIR light will enable the detection of the presence and level sensing of oils and fats. Level sensing of ethyl alcohol or ethanol is accomplished with a 1500–1600 nm LED light source. Optical bandpass filters might be required in some of these applications.

Horticulture, Agriculture, and Food Inspection

SWIR light enables the detection of spoilage and bruises on fruit and disease on plants before signs show up in the visible spectral range. SWIR LEDs and imagers mounted on drones or aircraft can also monitor crop health and moisture content and predict yield by analyzing the reflected SWIR light from crops.

Optical Sorting

SWIR LEDs can detect different types of plastics, foods, inorganic materials, or organic materials in sorting applications. For instance, stones are sometimes mixed in with grains and seeds; these could be sorted out with SWIR LEDs combined with an InGaAs photodiode. Roasted coffee beans have a lower moisture level than green or partially roasted beans. A 1450nm LED light source and a SWIR photodiode detector image could sort beans by roasting level.

Road Surface Condition Sensors

SWIR LEDs can detect different types of plastics, foods, inorganic materials, or organic materials in sorting applications. For instance, stones are sometimes mixed in with grains and seeds; these could be sorted out with SWIR LEDs combined with an InGaAs photodiode. Roasted coffee beans have a lower moisture level than green or partially roasted beans. A 1450nm LED light source and a SWIR photodiode detector image could sort beans by roasting level.

Painting Restoration / Artwork Examination

SWIR light and imaging has become an essential art restoration and authentication tool. SWIR LED light can allow art experts and curators to image underdrawings or pentimenti (hidden layers of paint in paintings). The SWIR analysis can help understand how the artworks were created and validate authenticity. And authentication.

Anti-counterfeiting

SWIR can detect unique SWIR fluorescent pigments embedded in currency or documents. It can also detect counterfeit materials and chemical substances that should not be present in a product or document.

Water and Moisture Sensors

Water has high absorption peaks at 1450nm, 1950nm, and 2600nm to 2800nm SWIR wavelengths. 1450nm SWIR LEDs are the most commonly used SWIR LEDs for water and moisture detection because 1450nm SWIR light can be detected with 1.7µm InGaAs photodiodes. Marktech’s 2.6µm InGaAs photodiodes could detect all three absorption peaks at 1450nm, 1950nm, and 2600nm to 2800nm.
Marktech Optoelectronics is at the forefront of SWIR LED technology, delivering advanced solutions that cater to the evolving demands of various industries. Our SWIR LEDs are meticulously engineered to provide superior performance, long-lasting durability, and exceptional versatility, making them the perfect choice for multiple applications. Marktech Optoelectronics’ SWIR LEDs embody the latest optoelectronic innovation, providing powerful, efficient, and versatile solutions for various applications. Whether you’re developing next-generation industrial equipment, advanced medical imaging devices, or cutting-edge security systems, our SWIR LEDs offer the performance and reliability you need to succeed.

Additional Resources

Spectral sensitivity from 254nm to 2600nm depending on specific InGaAs and silicon photodiodes placed in the same package.

Need Parts?

Do you need a small number of LEDs for your proof of concept? Or, are you looking to purchase a run for your prototypes? Visit our online stores at Digi-Key Electronics and Mouser Electronics today. In Japan, our products are now available through Rikei Corporation. In Israel, our products are now available through Militram. In Canada, our products are now available through ARL Group.

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Near IR Scan of a Cancer Cell

InGaAs PIN Photodiode

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