搜索结果: 1-15 共查到“光学工程 Recording”相关记录17条 . 查询时间(0.035 秒)
RECORDING AND MODELLING AN ABORIGINAL CAVE PAINTING : WITH OR WITHOUT LASER SCANNING?
Archaeology Cultural Heritage Laser Scanning Image Correlation Digital Photogrammetry Virtual Reality
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2015/8/7
There are many compelling arguments, worldwide, for the recording of indigenous art sites which are endangered by “people
pressures”. The Baiame cave painting in the Hunter Valley of Australia (lat....
Magneto-optic recording materials with direct overwrite capability
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2011/12/9
The possibility of achieving direct overwrite capability in magneti-optic thin films is demonstrated.By using films having a compensation temperature tens of degrees higher than the ambient temperatur...
Effects of Target Stucture on the Properties of MO Recording Media Produced in a Large-Scale Vertical In-Line Sputtering System
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2011/12/9
The metallurgical states of rare earth-transition metal targets were found to be essential to produce high performance magneto-optical recording thin films.Our study indicates that in a vertical in-li...
Improved methods of direct of direct overwrite in magneto-optical recording media
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2011/12/9
Two improved methods of achieving direct overwrite without a pulsed magnetic field to write or erase dingle-layer magneto-optical media with a compensation point of 125-130 and a Curie temperature of ...
Operating margins for magneto-optic recording materials with direct overwrite capability
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2011/12/1
The possibility of achieving direct overwrite in magneto-optic thin films is demonstrated. By using films having a compensation temperature tens of degrees higher than room temperature, writing and er...
Control of parameters in rare earth- transition metal alloys for magneto-optical recording media
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2011/12/1
The techniques which can be used to control the magnetic and occurs when the temperature in the heated spot increasesufficiently magneto-optical recording properties of sputtered amorphous thin films ...
Measurement of the magnetoresistance effect in magneto-optical recording media
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2011/12/1
The magnetoresistance effect in compositionally modulated transition metal/transition-metal films (Co/Pt and Co/Pd) and in amorphous binary rare-earth-transition-metal alloy films (TbFe) has been inve...
Multi-level recording in erasable phase-change media by light intensity modulation
light intensity modulation multilevel recording optical disk pulse position modulation multil-layer
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2011/11/29
Multilevel recording has an advantage of increasing the recording density without extensively altering altering the current optical configuration.Four-level recording schemes in phase-change disks usi...
Polarization analyses of readout signals by a solid immersion lens in phase change recording material
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2011/11/28
Comprehensive analyses based on the rigorous vector diffraction theory were used to simulate the polarized readout signals using a solid immersion lens (SIL) in reading phase change (PC) disks. For an...
Design and Fabrication of Fiberlenses for Optical Recording Applications
microlens single-mode fiber optical recording thermal writing
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2011/11/28
The novel design and fabrication of a microlens on the front end of a single-mode fiber is described. The beam quality and spot size for optical recording applications are analyzed. A hyperbolic-shape...
Oxygen and Nitrogen Co-Doped GeSbTe Thin Films for Phase-Change Optical Recording
GeSbTe recording layer oxygen and nitrogen doping optical constants microstructure crystallization temperatures phase-change optical disks
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2011/11/28
Nitrogen and oxygen co-doped GeSbTe films for phase-change optical recording are investigated. It is found that optical properties of amorphous and crystalline state are similar to that of GeSbTe, cry...
Fiber-Lens-based Module for Optical Recording Applications
fiber lens SIL near field optical data storage submicron aperture
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2011/11/28
An optical fiber-lens-type pickup with numerical aperture 餘A藜0:27 was demonstrated for thermal recording of continuous 1.6-mm-wide lines on MO disks with 50% throughput efficiency. Moreover, a Si-mic...
Performance of a write-once multilayer optical disk that uses transparent recording material with an optical switching layer
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2011/11/25
A volumetric optical disk that has multiple transparent films with optical switching layers is used as a recording medium to increase the number of recording layers. In the disk the optical switching ...
Enhancement of Data Transfer Rate of Phase Change Optical Disk by Doping Nitrogen in Ge–In–Sb–Te Recording Layer
Ge–In–Sb–Te recording material data transfer rate recrystallization speed nitrogen doping
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2011/11/25
This work investigated the enhancement of the data transfer rate and/or recrystallization speed of Ge–In–Sb–Te recording material by nitrogen doping. The effects of nitrogen content on the dynamic pro...
The nitrogen doping effect on the properties of Ge–In–Sb–Te phase-change recording media investigated by blue-light laser
Ge– In–Sb–Te phase-change recording media Nitrogen doping Recrystallization speed Microstructure
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2011/11/25
This work investigates the thermal, optical and recrystallization properties as well as the microstructure of nitrogen-doped Ge–In–Sb–Te (GIST) phase-change material when irradiated by blue-light lase...