Xeva eSWIR series

Xeva eSWIR series

Sensor Type

T2SL

Resolution - Pixel pitch

320 x 256 - 30 µm

Sensitivity

1-2.35 µm

Shutter Mode

Global shutter

Readout Noise

150 [HG], 1000 [LG]

Interface

CameraLink

Compact T2SL based eSWIR camera

The Xeva eSWIR (extended short-wave infrared) series uses a thermo-electrically cooled T2SL detector with a 320 x 256 pixel resolution and response in the short-wave infrared (SWIR) band up to 2.35 μm.

The Xeva eSWIR cameras are offered with frame rates of more than 340 Hz. The camera comes with a CameraLink interface.

About T2SL…

T2SL (Type II Super Lattice), sometimes also called SLS (Strained Layer Super-lattice) is an emerging technology for making the highest quality infrared photon detectors. It has numerous advantages to the preceding technologies including:

• Tailored wavelengths from 1.5 µm to 30 µm covering SWIR, MWIR, LWIR & VLWIR

• Exceptional uniformity which reduces costs for camera design & calibration.

• Higher operating temperatures which reduces size & power consumption Compared to other infrared detectors made of bulk material (alloys of different compounds), a superlattice detector is made of a repeating sequence of thin layers (a few nanometers) of different semiconducting materials.

The result is an artificial bulk material with a cut-off wavelength (band gap) that can be tailored by the thicknesses and composition of the individual layers. For infrared detectors, longer cut-off wavelengths are obtained for thicker layers in the superlattice, while shorter cut-off wavelengths are obtained with thinner layers.

Type-II refers to the alignment of the individual bandgaps of the materials that are located next to each other in the superlattice. If both the valence and the conduction band edge of the first material are above the band edges of the second material, it is called a broken type II band alignment. The III/V compound materials InAs and GaSb form such a band alignment.

Benefits & Features

• Extended SWIR imaging up to 2.35 μm
• Thermo-electrically cooling
• CameraLink interface
• Versatility with gain modes

Description

Extended SWIR camera (eSWIR)

Extended SWIR cameras: The Xeva eSWIR cameras are equipped with a Type II superlattice detector array with a spectral sensitivity range up to 2350 nm.

T2SL (Type II Super Lattice), sometimes also called SLS (Strained Layer Super-lattice) is an emerging technology for making the highest quality infrared photon detectors. It has numerous advantages to the preceding technologies including: • Tailored wavelengths from 1.5 µm to 30 µm covering SWIR, MWIR, LWIR & VLWIR • Exceptional uniformity which reduces costs for camera design & calibration. • Higher operating temperatures which reduces size & power consumption Compared to other infrared detectors made of bulk material (alloys of different compounds), a superlattice detector is made of a repeating sequence of thin layers (a few nanometers) of different semiconducting materials. The result is an artificial bulk material with a cut-off wavelength (band gap) that can be tailored by the thicknesses and composition of the individual layers. For infrared detectors, longer cut-off wavelengths are obtained for thicker layers in the superlattice, while shorter cut-off wavelengths are obtained with thinner layers.

As with the Xeva 320 SWIR, either the standard USB 2.0 interface or a CameraLink connection can be selected for the connection to the measuring computer.
The Xeva extended swir cameras are equipped with powerful 4-stage thermoelectric coolers that ensure stable and low noise at all times, even over long measurement periods.

Choose between cameras with full frame rates of 100 Hz or 344 Hz. Higher frame rates up to >10 kHz can be easily achieved at any time by windowing the 344 Hz models.

The Xeva cameras come with Xeneth software for camera control, image processing and data analysis.

Applications for eSWIR cameras:
– Optics inspection
– food analysis
– moisture detection
– Examination of painting signatures

eSWIR cameras are also expected to enhance existing applications and open up many more applications including • Chemical inspection • Hydrocarbon and gas detection • Plastic sorting • High speed thermal imaging • Medical imaging • Long range imaging through summer haze, maritime haze, and fine dust for automotive, surveillance and agricultural applications • Wafer defect inspection • Laser beam profiling

See our complete selection of SWIR cameras here

Visit our application page here

See video here