The APS LEUTL free-electron laser (FEL) is a high-gain, short-wavelength device requiring a high-current, low-emittance beam. An rf photoinjector driven by a laser is used to provide the requisite beam. The drive laser consists of a diode-pumped Nd:Glass oscillator and a chirped pulse amplification (CPA) system consisting of a grating stretcher, a flashlamp-pumped Nd:Glass regenerative amplifie...

High-repetition-rate, burst-mode lasers can achieve higher energies per pulse compared with continuously pulsed systems, but the relatively few number of laser pulses in each burst has limited the temporal dynamic range of measurements in unsteady flames. A fivefold increase in the range of timescales that can be resolved by burst-mode laser-based imaging systems is reported in this work by ext...

BACKGROUND Treatment of progressive disseminated essential telangiectasia and erythrosis interfollicularis colli by flashlamp pulsed dye laser frequently results in a mottled appearance and often leads to hypo- or hyperpigmentation after treatment. Furthermore, treatment is time-consuming due to the small spot size. OBJECTIVE To report the successful removal of thin vessels in patients with t...

The design and performance of a third-generation megahertz-rate pulse burst laser system is described. The third-generation system incorporates two distinct design changes that distinguish it from earlier-generation systems. The first is that pulse slicing is now achieved by using an economical acousto-optic modulator (AOM), and the second is the use of a variable pulse duration flashlamp drive...

Introduction: As planetary rovers travel longer distances in each command cycle, science conducted during traverse becomes a significant part of the overallmission. During traverse, the rover may pass an interesting feature never detected before (because it was not close enough) and never visited again (because continued progress was deemed more important than returning for further study). In t...