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VIEW-IT® IR & UV Detectors
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VIEW-IT®,
a high-efficiency, laser-sensitive ceramic disc, provides a convenient
method of viewing beam shape, mode structure and beam
alignment when held in the path of a laser beam. |
No charging is required!
Continuous viewing of
the laser beam
in action. |
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VIEW-IT®
provides an unlimited period of viewing for both pulsed and
continuous wave lasers. Beam quality and mode structures can be
observed in real time. |
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Principle of Operation: White ceramic
disc with strong nonlinear (up-conversion) on a base of unique ion
combination. This nonlinear optical process doubles the initial laser beam
frequency. For example, if an initiated wavelength of 1064 nm (1.06 µ)
strikes the VIEW-IT® disc, it will be observed
as green light. |
The VIEW-IT® in action! |
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Configurations: The VIEW-IT®
disc is a ceramic disc, 40 mm in diameter and 5 mm thick. It is available
on an adjustable, freestanding base (pictured) for ease of use. It is also
available as hand-held metal wand for manual insertion into the laser beam
path. |
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Easy Maintenance: Should the rear
surface of VIEW-IT® become damaged, it can be
re-faced easily using fine sandpaper. |
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TECHNICAL SPECIFICATIONS |
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Stimulation range: 800-1700 nm
(IR) and 200-400 nm (UV) |
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Emission color: green - 530 nm
(IR) and red/orange - 660 nm (UV) |
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Typical
Applications:
IR - GaAs Laser
Diodes (800-830 nm), InGaAs Laser Diodes (880, 960-980 nm), Nd:YAG (1064
nm), Er:Glass (1540 nm), telecommunications.
UV - Excimer Lasers, Gas lasers, tripled Nd:YAG or Alexandrite.
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Persistence (stimulation removed):
less than 10 msec for both IR and UV |
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No optical charging necessary.
Real time viewing! |
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No fading or saturation:
consistent output for steady light input (it's not necessary to move the
viewer constantly) |
Sensitivity threshold: All Ultraviolet
viewers, > 1 mJ/cm2 (pulsed) and > 5 mW/cm2(CW).
All Infrared
viewers, > 1 mJ/cm2 (pulsed)
and > 5 mW/cm2 (CW).
Do not use any VIEW-IT® product in or around the focal point of the laser beam. |
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Damage Threshold:
>10 J/cm2 for a typical Q-switched Nd:YAG laser, or >1 GW/cm2
@ 1064 nm for 10 ns at 10 PPS.
>100 MW/cm2 @ 1064 in CW mode.
For UV-viewers, the numbers are an order of magnitude lower because of
wavelength. |
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Spatial resolution: better than
20 grooves/mm, meaning that features of less than 50 µm in size can be
resolved. |
View-IT is a registered trademark of the Kentek
Corporation.
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