【摘 要】
：
We have experimentally demonstrated pulses 0.4 mJ in duration smaller than 12 fs with an excellent spatial beam profile by self-guided propagation in argon. The
【机 构】
：
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, C
论文部分内容阅读
We have experimentally demonstrated pulses 0.4 mJ in duration smaller than 12 fs with an excellent spatial beam profile by self-guided propagation in argon. The original 52fs pulses from the chirped pulsed amplification laser system are first precompressed to 32 fs by inserting an acoustic optical programmable dispersive filter instrument into the laser system for spectrum reshaping and dispersion compensation, and the pulse spectrum is subsequently broadened by filamentation in an argon cell. By using chirped mirrors for post-dispersion compensation, the pulses are successfully compressed to smaller than 12fs.
其他文献
前言茶树是多年生叶用经济作物,商品茶叶品质的优劣,很大程度上取决于鲜叶的质量。而鲜叶质量又主要受品种条件、生态条件和栽培技术措施的影响。近年来,植物生长调节剂在茶
A laser-diode-pumped 1.54-μm passive Q-switched erbium doped glass laser was reported. We utilize a laser diode with wavelength of 973 nm to pump a 1-mm Er/Yb
Photoconductive properties of photodiodes based on composites of CuS nanoparticles and Poly[2-methoxy, 5-(2-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) are in
Fe29Co71 and Fe19Ni8 antidot arrays, with different dimensions, are prepared with the rf magnetron sputtering method onto the porous alumina substrate. The size
在美国高度重视STEM教育以及中国“大众创业、万众创新”如火如荼的背景下,机器人教育正面临转型阶段,正在进行以STEM教育为理念,以机器人为载体的机器人创客教育。在该阶段
最近几年,由于我国啤酒工业发展迅速,对啤酒大麦的需求量猛增,供需矛盾十分突出,每年还要向国外进口大麦.为了配合我国啤酒工业的发展,种足种好优质啤酒大麦,江苏省沿海地区
The Darboux transformation of a differential-difference equation associated with a 3 x 3 matrix spectral problem is derived. As an application, explicit soliton
课堂结构是常态化课堂的前提性条件。在科学教学中,将"做思共生"作为一种实验教学的方式,通过"提出问题、猜想假设、制定计划、动手探究、汇报交流、应用拓展"等环节,正确处
众所周知,中学理化生和小学科学均是以实验为基础的学科,由此决定了实验教学是其赖以生存与发展的基础。在贯彻教育部《中小学实验室规程》的过程中,根据内蒙古全区实验教学
We propose a new structure of GaN based Schottky barrier ultraviolet photodetector, in which a thin n-type AlGaN window layer is added on the conventional n--Ga