blue laser

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blue laser

[¦blü ¦lā·zər]
(optics)
A laser that emits bluish-purple light efficiently at room temperature from a semiconductor diode based on multiple quantum wells of III-V nitrides such as indium gallium nitride.

blue laser

A semiconductor laser that emits light in the 400-450 nm range. Although it was very difficult developing blue lasers, which emit smaller wavelengths than other colors, blue lasers became commercially available in 2001. Blue diode lasers allow for smaller pits to be used in optical discs (CD-ROMs use 780 nm pits; DVDs are 630 nm).

Blue light-emitting diodes (LEDs), a related technology, were also difficult to manufacture, but became practical and widely used after the turn of the century. See Blu-ray and UDO.
References in periodicals archive ?
manufacturer and integrator of families of precision molded aspheric optics, GRADIUM(R) glass products, high-performance fiber- optic beam delivery systems and optical isolators, is pleased to announce a new optical product for collimating Blue Laser Diodes.
The company based in Anan, Tokushima Prefecture possesses many patents related to blue laser diodes as the blue light emitting diode -- the core component of blue laser diodes -- was invented in 1993 by Shuji Nakamura, then a researcher at Nichia Chemical.
The ITOS PHASER 3000 generates non-modulated white light by exciting a pin-point sized area of stationary phosphor using a focused bundle of high powered blue laser diodes.
In the same year some impressive progress has been published on the capability to shift the blue laser diodes towards the green wavelength.
The ATR0885 contains three outputs, each of which can be used for either the connection of blue laser diodes with a wavelength of 405 nm (HD-DVD/Blu-ray), DVD laser diodes with a wavelength of 780 nm, or CD laser diodes with 650 nm.
The ATR0842 is especially suited for blue laser diodes with 408 nm wavelength.
Rubicon's products are used in light emitting diodes and blue laser diodes for solid state lighting and electronics applications, in radio frequency integrated circuits and in products for military, aerospace, sensor and other applications.
This technology is costlier than red and blue laser diodes and less efficient than direct green lasers.
Other applications of Nano ZnO include anti-microbials, conductive thin-films in blue laser diodes, solar cells, and LCDs, protective coatings, capacitors, varistors, photoprinting and electrophotography.
As a solid-state blue light emitter, gallium nitride (GaN) is the ideal material for blue laser diodes.
Rubicon Technology (NASDAQ: RBCN) is an advanced electronic materials provider that is engaged in developing, manufacturing and selling monocrystalline sapphire and other crystalline products for light-emitting diodes (LEDs), radio frequency integrated circuits (RFICs), blue laser diodes, optoelectronics and other optical applications.