Saturday, December 20, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
T-Mobile to Pay $90 Million To Settle Case With FCC
New Trojan Targetted Banks Wordlwide
FBI Confirms North Korea Was Behind Sony Hack
Apple Responds To BBC's Allegations Over Working Conditions In Chinese Factory
BlackBerry Returns To Cash Flow
Comparison: Quantum Dot Vs. OLED Displays
Toshiba and SK Hynix Reach Settlement in Lawsuit Ahead Of CES
Google Concerned About MPAA's Actions To Revive SOPA
Active Discussions
Digital Audio Extraction and Plextools
Will there be any trade in scheme for the coming PSP Go?
Hello, Glad to be Aboard!!!
Best optical drive for ripping CD's? My LG 4163B is mediocre.
Hi All!
cdrw trouble
CDR for car Sat Nav
DVD/DL for Optiarc 7191S at 8X
 Home > News > Optical Storage > Highly ...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, July 16, 2007
Highly Efficient Ultraviolet Laser Promises Higher Optical Recording Densities


Japanese researchers have developed a new ultraviolet semiconducting material that could provide various new functions, such as a higher optical recording density and the excitation of white-light-emitting fluorescent materials.

The researchers behind the development are members of the National Institute of Advanced Industrial Science and Technology (AIST) in Japan.

The high emission efficiency of this newly developed zinc oxide (ZnO) semiconducting material has been accomplished by preparing a high-quality single crystalline thin film by the molecular beam epitaxy method. The light emission efficiency of the conventional ultraviolet-emitting semiconducting materials, such as gallium nitride, usually decreases with decreasing the wavelength of the emitted light. However, the newly developed material shows a remarkable increase in emission efficiency when the wavelength is decreased with increasing magnesium concentration, according to the researchers.

The basic structure of light emission devices is generally three-layered structure, where the light emitting active layer is sandwiched in between two barrier layers that block the transmission of light and electrons. The structure of the ZnO-based light emission devices which has been examined so far consists of ZnO as the active layer and "ZnMgO" as the two barrier layers. However, the researchers have discovered that "ZnMgO" has a far higher light emission efficiency than ZnO, so the ZnMgO is expected to be the material that they will use as an active layer in future semiconductor devices.



The material can be used for highly efficient ultraviolet light-emitting diodes, semiconductor lasers, and high-performance sources of white light.

For additional information visit www.aist.go.jp.


Previous
Next
HDTV Broadcasting Laws Hinder Popularity of HD DVD, Blu-Ray Recorders        All News        Nero and Panda to Offer Users Free Trials, Special Discounts
HDTV Broadcasting Laws Hinder Popularity of HD DVD, Blu-Ray Recorders     Optical Storage News      Nero and Panda to Offer Users Free Trials, Special Discounts

Get RSS feed Easy Print E-Mail this Message

Related News
Mitsubishi Develops New High-power Red Laser Diodes for Projectors
Sharp Offers Red Laser For HUD Applications and Small Projectors
New Green Semiconductor Laser Diode Achives Twice the Luminosity of Conventional Diodes
Panasonic Three-Wavelength Semiconductor Laser Simpilifies The Design Of Optical Pickup Units
Sony Announces New Optical Disc Archive Solution
Mitsubishi's New Red Laser Diode for Pico Projectors Offers Industry-leading Output Power
Sony Announced New BDXL-compatible, High-power Laser Diodes
Sony Develops Blue-violet Semiconductor Laser With An Output Of 100 Watt
Nichia Starts Sample Shipments of Green Laser
Panasonic to Raise its Annual Production Output of Dual-wavelength High-power Laser For DVD Recorders
Renesas Enters Blue-Violet Laser Market with a Laser Diode
First Germanium Laser Bring Us Closer To Computers That Use Light Instead Of Electricity To Move Data

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .