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Article
2D photonic-crystal-type surface relief grating for light with an azimuth angle
With the development of virtual reality, the projection design of the head-mounted display (HMD) requires improvement as well. The surface relief grating (SRG) is one of the popular diffraction elements to ach...
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Article
White light emission from Dy3+-doped LiLuF4 single crystal grown by Bridgman method
Lithium lutetium fluoride (LiLuF4) single crystals doped with different Dy3+ ion concentrations were grown by Bridgman method. The Judd-Ofelt (J-O) strength parameters (Ω 2, Ω 4, Ω
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Article
Nano-ZnO film preparation at low temperature and the optical indices calculation
The refractive indices of thin films based on Kramers-Kronig theory are corrected. And the correction theory is used to determine the optical indices of nano-ZnO thin films prepared by low temperature sol-gel ...
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Article
Preparation and characterization of size controllable spherical silver nanoparticles
By adjusting pH values of reactant system, the mass ratio of stabilizer/water and aging temperature, size controllable spherical silver nanoparticles (NPs) were synthesized. The properties of silver NPs are ch...
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Article
High precision measurement of formaldehyde in air with differential optical absorption spectroscopy
The formaldehyde (HCHO) measurement is described by differential optical absorption spectroscopy (DOAS) technique and the data processing method is discussed in detail, including the selection of retrieval wav...
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Article
Experimental and theoretical analysis of fiber Bragg gratings under Transverse Force to a Small Grating Section
Fiber Bragg grating under transverse force on a small grating section is studied by numerical simulation and experimentation. A numerical simulation based on the transfer matrix method is used to calculate the...
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Article
Studies of recombination X-ray-laser gain and gain-medium uniformity
The time evolution of the uniformity of the line-shaped X-ray-laser gain medium and the spatial characteristics of the recombination X-ray-laser gains of the Li-like ions are studied using long (∼900 ps) and s...
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Article
Soft X-ray amplification by Li-like Al10+ and Si11+ ions in recombining plasmas
Experimental studies of soft X-ray lasers were carried out on the six-beam laser facility and the LF 12 laser facility of SIOM. Using a home-made one-dimensional spatially resolved grazing incidence grating sp...