MHz class repetitively Q-switched, high-power ruby lasers for high-speed photographic applications

Abstract

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A novel ultra-high speed camera for digital image processing applications

“…Another technique that can be used to achieve much higher framing rates is similar to 'windowing', in the sense that a subset of the CCD array is used for each image. However, the pixels representing different images are interleaved; each set of pixels representing an image is exposed at one particular time, and instead of reading out each individual image as it becomes available, the images are kept on the CCD until a number of images are recorded on the CCD and they are all read out together [8,9]. Furthermore, it is also possible to increase the frame rate by dividing the CCD into multiple regions which are read out simultaneously through separate read-out sections [10].…”

Feasibility analysis and demonstration of high-speed digital imaging using micro-arrays of vertical cavity surface-emitting lasers

“…There are also applications in the areas of both vehicle and body armor, to examine effects of impact and vulnerability from explosive and projectile threats. 2 System Design Goals, Parameters, and Assumptions 2.1 System Design Goals The motivation for this system [1][2][3][4] is derived from the Aberdeen Advanced Armor Instrumentation efforts, test officer inputs, Army Research Lab applications, and ongoing requirements expressed in the open science grid published technical papers. The goal is to develop a portable system for use on a variety of test range illumination events.…”

Backscattering phenomena on range-gated imaging in short-range turbid water media

“…It is Q-switched to suit various power requirements ranging from a few tens mille-Joule (mJ) to a few hundreds mJ per pulse. On the highest extreme, McLean et al [39] and Nebolsine et al [52] used up to 1 Joule per pulse whereas Witherspoon et al [37] and Grace et al [31] used only less than 10 mJ per pulse of energy.…”