High density optical disc system with 400nm Blue-Violet Laser Diode
نویسندگان
چکیده
منابع مشابه
2 00 4 Atomic gallium laser spectroscopy with violet / blue diode lasers
We describe the operation of two GaN-based diode lasers for the laser spectroscopy of gallium at 403 nm and 417 nm. Their use in an external cavity configuration enabled the investigation of absorption spectroscopy in a gallium hollow cathode. We have analyzed the Doppler broadened profiles accounting for hyperfine and isotope structure and extracting both the temperature and densities of the n...
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Interest in Blu-ray Discs is increasing rapidly due to the release of the PS3*1 and the increasing popularity of terrestrial digital broadcasting. The necessity of blue-violet laser diodes that can support even higher recording densities and speeds is becoming stronger day by day in proportion to this increasing interest. Although we had to clear many technological hurdles in moving to this hig...
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Laser equipment is capable of performing ablation and incision while providing hemostasis, and is widely used in intraoral surgery where bleeding can often occur(1). One of the oldest types of laser equipment is CO2 laser. The wavelength of CO2 laser (10.6 μm) is strongly absorbed by water, which means that CO2 laser is suitable for efficient ablation and incision of soft tissues that contain l...
متن کاملConfocal microscopy using an InGaN violet laser diode at 406nm.
We report on the application of a novel all-solid-state violet laser diode source to confocal microscopy. The source has the potential to replace argon ion lasers in a range of fluorescence based imaging systems. Improvements in system performance and image quality through the use of anamorphic prisms to modify the beam profile have been characterised. These modifications have permitted high qu...
متن کاملAnalysis of violet-excited fluorochromes by flow cytometry using a violet laser diode.
BACKGROUND Low power violet laser diodes (VLDs) have been evaluated as potential replacements for water-cooled argon-ion and krypton-ion ultraviolet and violet lasers for DNA content analysis using the Hoechst dyes and 4,6-diamidino-2-phenylindole (Shapiro HMN, Perlmutter NG: Cytometry 44:133-136, 2001). In this study, we used a VLD to excite a variety of violet-excited fluorescent molecules im...
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ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 2001
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.29.supplement_s7