Patents from
Found 14 publications.
Page 1 of 1
2022
"Multi-millijoule holmium laser system"
Krishna Murari, Fangjie Zhou, Yi Wu, and Zenghu Chang
US Patent 11,223,179, issued on January 11, 2022.
2020
"High energy broadband laser system, methods, and applications"
Z. Chang, Xiaoming Ren, Yanchun Yin, Lam Mach
US Patent 10,790,631
2018
"Apparatus and method for suppressing parasitic lasing and applications thereof"
Z. Chang, E. Cunningham, and Y. Wu
US Patent 9,899,798
2015
"Optical system and optical filtering method"
Z. Chang, Q. Zhang, K. Zhao
US 9158176 B2
2015
"Apparatus and methods for controlling carrier envelope phase of low repetition rate pulses"
Zenghu Chang, Yi Wu, Eric Cunningham
US Patent 9,225,137, Awarded on December 29, 2015.
2012
"Temperature feedback control for long-term carrier-envelope phase locking"
Zenghu Chang, Chenxia Yun, Shouyuan Chen, He Wang, Michael Chini
U.S. Patent No. 8,228, 961, Issue on July 24, 2012.
2011
"Method and apparatus for controlling carrier envelope phase"
Zenghu Chang, Chengquan Li, Eric Moon
U.S. Patent No. 8,073,026 , Issued on December 6, 2011.
2010
"Method and apparatus for controlling carrier envelope phase"
Zenghu Chang, Chengquan Li, Eric Moon
Chinese Patent No. ZL 200780023212.X, issued on November 17, 2010
2006
"High peak-power kilohertz laser systems employing singe-stage multi-pass amplification"
Bing Shan, Chun Wang and Zenghu Chang
U.S. Patent No. 7,050,474, issued on May 23, 2006.
1998
"An Instrument for Real-time Ultrafast Optical Pulse Characterization"
Hongru Yang, Zenghu Chang
Chinese Patent No. CN 96236428.2. Issued on August 19, 1998.
1997
"A Method to Manufacture Optical Pinhole Arrays"
Zenghu Chang, Bing Shan, Xiuqin Liu
Chinese Patent No. CN 95113620.8. Issued on June 4, 1997.
1997
"Flat Electrode for Strong Electric Field"
Zenghu Chang, Xiuqin Liu
Chinese Patent No. CN 5245038.0. Issued on April 16, 1997.
1991
"Picosecond Framing Photography with an Optical Image Separator and an Electron Deflection Shutter"
Zenghu Chang
Chinese Patent No. CN 89106216.5, Issued on Feb. 6, 1991.
1990
"Soft X-ray Monochrometer Based on Fluorescence Emission"
Zenghu Chang
Chinese Patent No. CN 89108535.1, Issued on May 16, 1990.
