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 ?
An EG-L590ZW electronic magnification endoscope was used in combination with a LASEREO blue laser endoscope system, an LL-4450 laser source, and a VP-4450HD image-processing device.
uses a blue laser as its light source alongside a 3LCD optical system, to
He then worked on producing a blue laser diode using gallium nitride.
A hand-held scanner that incorporates blue laser technology, ultra-fast frame rate, specially developed Nikon optics, and the ability to measure dimensions of the most challenging materials has been introduced by Nikon Metrology Inc., Brighton, Mich.
In the study, Wu and her colleagues isolated and characterized female germline stem cells from a single transgenic mouse with cells that show green fluorescence when activated by a blue laser.
This report is further segmented on the basis of wavelength into blue-violet laser diode, blue laser diode, infrared laser diode, red laser diode, and others (such as ultraviolet (UV) laser diode and green laser diode).
Blue laser imaging (BLI) has recently been developed as a combination of two kinds of laser lights for narrowband light observation.
Blue laser FAF imaging utilises this property to generate a map of lipofuscin accumulation, pinpointing areas at higher risk of progression.
The ScanArm features blue laser technology with fast scanning speed to deliver high-resolution point cloud data and the ability to seamlessly scan challenging materials without the need for spray or targets.
The genetic tweak caused these cells to fire off signals in response to blue laser light.
For most cytometers, however, measuring less than 300 nm is difficult if not impossible because of the fact that they deliver relative sizing information using forward scattered light off of the 488 nm Blue laser. For these systems, particles of less than 1 mm (1,000 nm) usually fall below the noise threshold of the laser and detector sub-systems.
Blue laser light increases perfusion of a skin flap via release of nitric oxide from hemoglobin.