نتایج جستجو برای: laser mirror
تعداد نتایج: 207668 فیلتر نتایج به سال:
This manuscript presents a first study of the contamination observed on some of the x-ray mirrors for the Linac Coherent Light Source (LCLS) free-electron laser, the implications to the mirror lifetime properties and an evaluation of candidate techniques towards successful recovery of these B4Cand SiC-coated mirrors. Initial experimental results and plans for upcoming mirror recovery experiment...
Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...
Unlike a vertical-cavity surface-emitting laser (VCSEL), which comprises two highly reflecting distributed Bragg reflectors (DBRs), the extended cavity in VECSELs employs a third mirror. The fabrication of such a device requires a long process chain, including the patterning of the VCSEL structures, definition of the extended optical resonator, mirror coating and die bonding. While VCSELs have ...
Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...
Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...
Adjustable narrow band holographic reflective filter with the absolute diffraction efficiency about 95% has been recorded in the volume of photo-thermo-refractive glass Attenuation up to 20 times of transmitted beam was observed. Advantages of holographic filters in inorganic glass for laser power attenuation are discussed. © 2003 Optical Society of America OCIS codes: (230.1480) Bragg reflecto...
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