Streak camera from Hamamatsu features InP/InGaAs photocathode

June 12, 2012
The C11293 streak camera has sensitivity in the near-infrared region up to 1650 nm.

The C11293 streak camera has sensitivity in the near-infrared region up to 1650 nm. The photocathode is made of InP/InGaAs and a sensitivity several orders of magnitude higher than the S-1 material used in older streak cameras. It operates at approximately -100°C with liquid nitrogen cooling.
Bridgewater, NJ

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Hamamatsu introduces a new NIR streak camera for measurements up to 1650 nm

Hamamatsu Photonics introduces the C11293, a new streak camera with sensitivity in the near infrared region up to 1650 nm. This streak camera's sensitivity is many orders of magnitude higher than previously available. Like other streak cameras, the new C11293 model simultaneously records intensity vs. time vs. position (or wavelength) with very high temporal resolution.

Up to now, the only photocathode material available for streak measurements at >1000 nm has been the so-called S-1 material. The S-1 material features excellent temporal resolution better than 1 ps, but suffers from low quantum efficiencies at longer wavelengths. After many years of development, Hamamatsu Photonics is now, for the first time, making commercially available a streak photocathode made of InP/InGaAs. This photocathode has a sensitivity several orders of magnitude higher than S-1, and also extends its range up to 1650 nm, where S-1 is unsuitable.

A crucial characteristic of all IR detectors is their dark current. In order to suppress the dark current, and thereby make the device suitable for low-light-level applications, the photocathode operates at a working temperature of approximately -100°C by means of liquid nitrogen cooling.

The time resolution of the C11293 is better than 20 ps FWHM. It can run at arbitrary repetition rates up to 20 MHz, making it very versatile and easy to combine with many experimental setups.

The new C11293 NIR streak camera is ideally suited to a wide range of application areas including time-resolved spectroscopy in semiconductor physics, quantum dots, carbon nanotubes and other nanostructure research, photovoltaic research, photonics crystals, and many others.

To view full technical specifications, please download the product datasheet from

Information on pricing and delivery can be obtained by calling Hamamatsu Corporation at 1-800-524-0504.

About Hamamatsu Corporation
Hamamatsu Corporation is the North American subsidary of Hamamatsu Photonics K.K. (Japan), a leading manufacturer of devices for the generation and measurement of infrared detectors, photoconductive detectors, and image sensors. The parent company is dedicated to the advancement of photonics through extensive research. This corporate philosophy results in state-of-the-art products which are used throughout the world in scientific, industrial, and commercial applications.


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