Abstract

The spectral range at which conventional streak camera systems operate is limited by the spectral response of the photocathode used. For most photocathode materials the sensitivity is limited to wavelengths shorter than 1.5 µm. Beyond this wavelength the quantum efficiency of the photocathode becomes negligible. The temporal profile of mid- and far-infrared light pulses can thus not be measured directly using a conventional streak camera.

© 1998 IEEE