OPTICAL PULSE STRETCHING AND COMPRESSING
申请公布号:WO2005018062(A9)
申请号:WO2004US25991
申请日期:2004.08.11
申请公布日期:2005.06.02
发明人:SIDERS, CRAIG, W.;BULLINGTON, JEFF;ANDRUSYAK, OLEKSIY
分类号:A61B17/00;A61B18/20;A61B19/00;(IPC1-7):H01S/
主分类号:A61B17/00
摘要:<p>Ablative material removal with a series of high-power, ultra-short (e.g., sub-picosecond) optical pulses is especially useful for a number of purposes (including medical) as the ablation is essentially non-thermal and applies essentially no pressure to the surface. In order to amplify the pulse to a reasonable power level, ablative pulses are created by generating low-power, ultra-short pulses, which are then stretched, amplified, and compressed back to ultra-short durations. The present invention provides a method for temporally stretching or compressing optical pulses containing a band of wavelengths by inputting a tilted collimated beam (56), spatial-spreading the beam (56), spatial-narrowing the beam (56), spatial-spreading the beam (56), spatial-narrowing the beam (56), and collimating the output beam (52), wherein path length and delay vary by wavelength and the pulses are temporally modified, and wherein the tilt causes the beam (56) to hit at least one of the gratings (54) more than once at a different line or point.</p>
MANUFACTURE OF ORNAMENTAL BOARD
ANODIC ETCHING METHOD IN HARD CHROMIUM PLATING
HIGH SPEED HARD CHROMIUM PLATING METHOD
COMPOUND-TYPE SUPERCONDUCTIVE BODY AND PREPARATION THEREOF
RADIATION-SENSITIVE POLYAMIDEIMIDE-BASE CURABLE MATERIAL
ETHYLENE/ALPHA-OLEFIN COPOLYMER
CARRYING-IN DEVICE FOR SIDE SLIDING DOOR FOR CAR
APPARATUS FOR DIALYSING ENGINE GENERATED WAVE FORM
NOVEL D-HOMO-CORTICOID, MANUFACTURE AND CORTICOID MEDICINE
N-PYRIDYLANILINE DERIVATIVE AND PEST CONTROLLER CONTAINING THE SAME
PREPARATION OF 1,4-DIHYDROXY-2-NAPHTHOIC ACID
(A) ;NOVEL BACTERICIDAL CARBAZINIC ACID ESTER
INSECT REPELLENT FOR LIVING TREE AND INSECT REPLELLING METHOD