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17 terms

Photonics Dictionary: Y

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y
yocto
Y
yotta
Y axis
1. In a plane Cartesian coordinate system, the vertical axis orthogonal to the X-axis. 2. In a quartz crystal structure, the line perpendicular to two opposite parallel faces of the crystal.
Y-axis deflection
The vertical deflection of an image on a cathode-ray tube screen.
YAG
yttrium aluminum garnet
YAG crystal
A YAG crystal refers to a solid-state crystal made of yttrium aluminum garnet (YAG), which is a synthetic crystalline material. YAG crystals are known for their exceptional optical properties,...
YAG laser
A solid-state laser using yttrium aluminum garnet as the matrix material, doped with neodymium (Nd:YAG).
YALO
yttrium orthoaluminate
yaw
In positioning, in-plane rotation about the vertical axis. Also known as azimuth.
YLF
yttrium lanthanum fluoride
yocto
In the SI system, prefix meaning 10-24. (y).
yotta
In the SI system, prefix meaning 1024. (Y).
Young's construction
A method of graphical ray tracing through a boundary surface dividing two media of differing indices of refraction.
Young's modulus
The constant equal to the unit stress divided by unit deformation, relative to all values and a substance's proportional restrictions.
Young's two-slit interference
The method by which Thomas Young in 1802 disproved Newton's corpuscular theory of light by the formation of interference patterns between two beams of light from the same source. This was produced by...
yr
year
ytterbium laser
A ytterbium laser is a type of solid-state laser that employs ytterbium ions (Yb³+) as the dopant in the gain medium. These lasers are known for their high efficiency, broad absorption and...
Photonics DictionaryY

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