Increased Sensitivity of a Vidicon Optical Multichannel Analyzer with a Detachable Electrostatic Image Intensifier.

摘要

The advantages of multichannel detection with an optical multichannel analyzer (OMA) have been well documented. These advantages include fast data acquisition, broadband spectral response, and the ability to monitor time development of a system. One commonly used 2-D OMA detector is the SIT(Silicon Intensified Target) vidicon, which is essentially a low-light-level TV camera. We report a substantial gain in sensitivity through the addition of a commercially available electrostatic image intensifier to a SIT vidicon system. This relatively low-cost modification allows cooled or room temperature operation, cw or pulsed detection, and ease of removal or addition. The latter feature is important since increased sensitivity is not required for some applications. Keywords: Image intensifier; Coherent anti-Stokes scattering; Silicon intensified target vidicon, Optical multichannel analyzer. (JES)