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.

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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.

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He then worked on producing a blue laser diode using gallium nitride.

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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.

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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.

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FARO releases high-resolution 3D ScanArm for reverse engineering, CAD-based design applications

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