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The optical disc storage medium for the film

Write once, read-write hoop, write to the disc requires 514.5nm, 633nm read, we use the systems as IZriSe-MgF2, recording media, a Al,[link widoczny dla zalogowanych], the plate in the Beijing Film & Video for write-read experiment has been release image. 3. Experimental study of magneto-optical thin films that we match the magnetron sputtering device in a magneto-optical thin film media on matching experimental study,[link widoczny dla zalogowanych], prepared by the following film system 1. ZnS-TbFeCo-ZnS-A12. A1N-TbFeCo-A1N-A13. A1N-TbFeCo-ZnS - A1 on the measurement of optical reflectivity curve shows that get better calligraphist fruit, we conducted a magneto-optical effect of their experimental results have been good. Overall collaboration with our laboratory developed a CD-ROM A1N target, the match in the laboratory experiments of a certain outcome 4. The protective properties of the disc and the dielectric film accelerated aging 4.1 Auger analysis of thin film discs match the dielectric film to study the protective effect of thin films Liu CD, we match the film and without film disc match the Auger analysis and the results show that films have matched the media basically cut off from the erosion of the disc, rather than increase film before and after the match had severe oxygen erosion of the interface, l in the film and substrate interface is more serious, said BenQ body itself has a great influence on the recording films. * 49.4 .2 Ying films plus light aging test for the left 'of the disc match the environmental stability and life of the film, we are in a constant temperature inside the aging of various thin film experiments. AlN-TeFeCo-AlN, zn5 a TeFeCo ~ ZnS, 5IN-TeFeC0 ~ SiN, AlN-SbzSe. An AIN coating, such as several in the 45 �� (90%) RH under 15 days of the reflectivity can be seen, these types of coating are certain environmental stability Shi Bai Qi very life. It should be emphasized that the film cracking and falling off the disc problem in our experiments, different coating has occurred, to be truly useful CD-ROM, needs further study. References (1) J. E, Rowee ��a1. ; Phys,[link widoczny dla zalogowanych], Rev, Lett,, 1980,44,1770. (2) J. E. Den] a ��hct; 1,; Chem. Phys. 1etL. , 1980,76,201 (3) J. R. 1ombardjetaJ. C ~ en1. Phys. 1ett. , 1984,[link widoczny dla zalogowanych],104,[link widoczny dla zalogowanych],240 (4) A. E. belleta1. , IEEEJ. QuaM. Electr. , 1978, QF-14 (7) 487 (5) F. S. Ohuchi, J. Vae. SciTeeh, 1987, A5 (4), 1630 (6) M. Teraoeta1. , SPIE1985, Vo1.529, 46 (on the next page 93) is low, the adhesion film and glass panel fell, the temperature is too high, acres static effects have sent. Near-static test results is picking hair Pimo anchovy and watch it take charge of the situation after the adsorption of soot. 3. Extension of the cathode current density in the high life of the main measures is the use of impregnated cathode (1r ~ pregnateddisperisercathode). The cathode as early as 1950 invented. Mainly used in the magnetron, traveling wave tube. Because of its high operating temperature, manufacturing process complicated and difficult to activate, it is rarely used in mass production of picture tubes. But in recent years because modern big-screen, high clarity stag CPT requirements, please e-gun cathode surface in a small to provide high current, which Western Europe and Japan have used several companies impregnated cathode. The cathode of the manufacturing technology is also more mature. Its working principle is immersed in the oxidation of spider melting of porous sintered body made of a tungsten matrix cathode. When heated cathode in a vacuum, it will restore the activity of barium oxide elements, these elements formed on the surface in the porous metal single atomic layer, resulting in electron emission. While working at the cathode, this element continued to lag by a porous metallic surface evaporation. In such a surface layer of sputter coated cathode metal (eg Ir Iridium), which can reduce the work function, resulting in lower operating temperature of about 1OOG. Ba evaporation of the elements also inhibited by the metal coating, it can extend the life of the cathode. Compared with ordinary oxide cathode, mentioning the work of the cathode current density of stain can be shouted from about O. Security / cm. To improve the strong safety l0 / cartridge meters, life can be hours in the gourd 10,0 O0 50,000 to 100,00 O hours. Operating temperature increased from 800 �� to 950 ~ 2-1200 ~ C. * 50 *

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