Zobrazeno 1 - 10
of 46
pro vyhledávání: '"John C. Bellum"'
Publikováno v:
Laser-Induced Damage in Optical Materials 2021.
Autor:
Jonathan W. Arenberg, C. Wren Carr, Michael D. Thomas, Trey Turner, Donna J. Howland, Nathan Carlie, Matthew Brophy, Matthew S. Dabney, Allen Krisiloff, John C. Bellum
Publikováno v:
Components and Packaging for Laser Systems VI.
Successful commerce of science and technology requires standardization of measurement. Today more than ever, there is need for a new Optical Laser Damage standard to increase the efficiency of commerce in the optical industry. The current Laser Damag
Autor:
Matthew Brophy, Donna J. Howland, Trey Turner, Gary Shaffer, C. Wren Carr, Allen Krisiloff, John C. Bellum, Michael D. Thomas, Ella Suzanne Field, Jonathan W. Arenberg
Publikováno v:
Laser-induced Damage in Optical Materials 2019.
In previous years, this committee reported on the need for a US National Laser damage standard, addressing the needs of domestic industry. In 2017, a process was reported that connected the measurement of the active defect density in a small area, a,
Autor:
Gary Shaffer, Allen Krisiloff, Jonathan W. Arenberg, Michael D. Thomas, Trey Turner, Matthew Brophy, Ella Suzanne Field, C. Wren Carr, John C. Bellum, Donna Howland
Publikováno v:
Laser-Induced Damage in Optical Materials 2017.
This paper reports on the fundamental idea behind a US National Committee, The Optics and Electro-Optics Standards Council (OEOSC) Task Force (TF) 7, proposal for a so-called Type 1 laser damage test procedure. A Type 1 test is designed to give a sim
Publikováno v:
SPIE Proceedings.
We designed and produced optical coatings for broad bandwidth high reflection (BBHR) of femtosecond (fs) pulses for high energy petawatt (PW) lasers. These BBHR coatings consist of TiO2/SiO2 and/or HfO2/SiO2 layer pairs formed by reactive E-beam evap
Publikováno v:
SPIE Proceedings.
We have designed and reported on a dichroic beam combiner coating consisting of HfO2/SiO2 layer pairs to provide high transmission at 527 nm and high reflection at 1054 nm for 22.5° angle of incidence (AOI) in S polarization (Spol). The laser-induce
Publikováno v:
SPIE Proceedings.
Preventing contamination is vital to achieving high laser-induced damage thresholds in optical coatings. The importance of removing contamination from optical substrates has led to the development of many specialized cleaning processes, including the
Publikováno v:
Optical Interference Coatings 2016.
This study examined whether coating system contamination, indicated by poor base pressure, has a negative impact on the laser-induced damage threshold of HfO2/SiO2 high reflection coatings for 527 nm.
Autor:
Dinesh Patel, Carmen S. Menoni, Travis Day, Yejia Xu, Amir Khabbazi, Damon E. Kletecka, Andrew Brown, Ella Suzanne Field, John C. Bellum, Wolfgang Rudolph, Luke A. Emmert, Joseph J. Talghader
Publikováno v:
Laser-Induced Damage in Optical Materials: 2015.
The laser damage behavior of high quality coatings under nanosecond pulse illumination is controlled by statistically distributed defects, whose physical nature and defect mechanisms are still largely unknown. Defect densities are often retrieved by