Photonic Science SWIR InGaAs camera captures PV cell emissions

Photonic Science InGaAs SWIR camera

This InGaAs SWIR camera delivers 640 × 512 pixel resolution with extended dynamic range response up to 2.2 µm. It can detect voids, cracks, and dead areas through silicon and capture faint electroluminescence and photoluminescence emissions from individual photovoltaic cells. Peak quantum efficiency is >70 % at 1100 nm and >65% from 1000 to 1600 nm, input pixel size is 25 × 25 µm, and responsivity is 1.2 and 31 µV per electron in low- and high-gain mode, respectively. The camera operates at 25 fps at full resolution at 10 MHz and has a 16-bit extended dynamic range. Other applications include industrial thermal imaging, imaging spectroscopy, thick sample and tissue IR microscopy, laser profiling, telecommunications, and low-light-level and range-gated IR imaging.
Photonic Science Ltd.
Robertsbridge, England

info@photonic-science.co.uk

More Products

-----

PRESS RELEASE

Infrared (SWIR/ InGaAs) camera for high-throughput solar cell inspection

ROBERTSBRIDGE, UK, April, 2011 — Photonic Science Ltd. has introduced a high-resolution InGaAs short-wavelength infrared (SWIR) camera for high-throughput solar cell inspection using laser-induced fluorescence.  It delivers 640 × 512-pixel resolution with extended dynamic range response up to 2.2 µm.

The camera detects voids, cracks and dead areas through sliced and bulk silicon and captures faint laser fluorescence-induced emissions from individual photovoltaic cells and bare silicon wafer substrates. Cracks, and dead or weak responding areas are unveiled on sliced wafers, enabling automatic sorting and selection of the best pieces at up to >3000 wafers/h.

It captures faint electroluminescence and photoluminescence emissions from individual photovoltaic cells that are directly proportional to their efficiency. Peak quantum efficiency is >70 % at 1100 nm and >65% from 1000 to 1600 nm.

Features include a high-responsivity InGaAs sensor, low-noise electronics and deep cooling. The read-while-expose mode enables a 100% shutterless duty cycle and high sensitivity operation in low-light-level conditions. Input pixel size is 25 × 25 µm, responsivity in low-gain mode is 1.2 µV per electron and, in high-gain-mode, 31 µV per electron. The camera operates at 25 fps at full resolution at 10 MHz and has a 16-bit extended dynamic range.

Supplied with state-of-the-art SWIR optics, it delivers high resolution and contrast modulation and lower distortion than the conventional near-infrared optics that are used with CCD cameras. Other applications include astronomy, industrial thermal imaging, imaging spectroscopy, thick sample and tissue infrared microscopy, laser profiling, telecommunications, and low-light-level and range-gated infrared imaging.

-----

Follow us on Twitter

Follow OptoIQ on your iPhone; download the free app here.

Subscribe now to Laser Focus World magazine; it's free!



Most Popular Articles

50 YEARS OF GAS LASERS


Durable survivors evolve new forms

Webcasts

Laser Measurements Critical to Successful Additive Manufacturing Processes

Maximizing the stability of the variables going into any manufacturing process is what ensures ts consistency and high quality. Specifically, when a laser is...

Ray Optics Simulations with COMSOL Multiphysics

The Ray Optics Module can be used to simulate electromagnetic wave propagation when the wavelength is much smaller than the smallest geometric entity in the ...

Multichannel Spectroscopy: Technology and Applications

This webcast, sponsored by Hamamatsu, highlights some of the photonic technology used in spectroscopy, and the resulting applications.

Handheld Spectrometers

Spectroscopy is a powerful and versatile tool that traditionally often required a large and bulky instrument. The combination of compact optics and modern pa...
White Papers

Wavelength stabilized multi-kW diode laser systems

Wavelength stabilization of high-power diode laser systems is an important means to increase the ...

Narrow-line fiber-coupled modules for DPAL pumping

A new series of fiber coupled diode laser modules optimized for DPAL pumping is presented, featur...

Accurate LED Source Modeling Using TracePro

Modern optical modeling programs allow product design engineers to create, analyze, and optimize ...
Technical Digests

ADHESIVES, SEALANTS, AND COATINGS: Solutions for optical technologies

A vast array of optical systems of various types and degrees of complexity require the use of adh...

WAVELENGTH-SWEPT LASERS: Dispersion-tuned fiber laser sweeps over a 140 nm range for OCT

By eliminating the use of mechanical tunable filters and instead tuning by intensity-modulation i...

Keeping pace with developments in photonic materials research

For demanding or custom spectroscopy solutions, care must be taken in selecting and integrating a...

HIGH-POWER FIBER LASERS: Working in the kilowatt regime

High-power materials-processing fiber lasers are available in an increasing variety of forms, as ...

Click here to have your products listed in the Laser Focus World Buyers Guide.
Social Activity
  •  
  •  
  •  
  •  
  •  
Copyright © 2007-2014. PennWell Corporation, Tulsa, OK. All Rights Reserved.PRIVACY POLICY | TERMS AND CONDITIONS