Download 10 09 11 Sol Gel Cleveland Crystals

10 09 11 Sol Gel Cleveland Crystals
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SolGel AR Coatings
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More Peak Power
Wider Spectral Bandwidth
Better Optical Transmission
Optics From 4 to 300 mm Diameter
Less Risk to Expensive Optics
Improved Nonlinear Conversion
SolGel AR coatings from Cleveland Crystals,
Inc. offer broadband, ultra damage resistant
alternatives to conventional dielectric coatings.
Especially suited to substrates which cannot
accept hard dielectric coatings, like KDP and
KD*P, SolGel exhibits low reflectance over
wide wavelength ranges (see Figure 1, below
and Figure 2, right). While conventional
multiple layer dielectric stacks are typically
designed to withstand 4 to 6 J/cm² in pulses a
few to ten nanoseconds wide, SolGel coatings
can handle 40 J/cm² in this pulse regime at 1064
nm and 15 J/cm² at 355 nm.
With a net index of refraction near 1.2,
SolGel AR coatings provide a near optimal
index match to fused silica, BK7, KDP and
KD*P. They also provide a good match to
BBO, Ba(NO3)2 and other nonlinear materials.
SolGel AR coatings improve intra-cavity
optics like Pockels cell Q-switches and are
standard on Cleveland Crystals' new IMPACT!
Pockels cell line. They are also available on the
Series QX and TX lines as well. Pockels cells
with SolGel AR coatings are well suited for use
in Ti:Sapphire laser and regenerative amplifier
cavities. For shorter wavelength applications,
Click for larger image
SolGel AR coatings consist of a /4 layer of
porous silica. Although mechanically soft,
Cleveland Crystals' engineers have developed
hardening techniques for some substrate
materials.
Hardened SolGel AR coatings help
astronomers achieve improved, wide band
transmission with less risk to telescope optics up
to 300 mm diameter. (technology is being
developed to provide coating options for up to 1
meter diameter optics). Unlike conventionally
applied coatings, technicians apply SolGel at
room temperature and pressure, reducing risk
due to thermal shock and handling.
Manufacturers of ultraviolet photolithography
optics can use SolGel AR coatings to produce
reliable, low loss CaF2 and MgF2 optical
systems. Reasonably priced and scalable to
large volume manufacturing, SolGel AR
coatings are easy to remove, usually without
polishing, so damaged optics cost less to repair.
ask for details about Cleveland Crystals' UV
Grade Q-switches.
Click for larger image
Copyright 1999 Cleveland Crystals, Inc.
Nonlinear optics demand highly damageresistant AR coatings, like Cleveland Crystals'
SolGel. Increasing laser intensity to drive more
efficient nonlinear frequency conversion can
present design challenges as laser intensity
reaches bulk material damage thresholds.
SolGel coatings accept higher intensities than
conventional dielectric AR coatings promoting
more effective utilization of nonlinear optical
media.
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With more than 5000 SolGel coated products in
the field, Cleveland Crystals has the experience
to put this technology to work for you. Contact
[email protected] for more
information about SolGel AR coatings.