*A note on sales: RTI tries to avoid typographical errors and maintain updated information.
However, pricing is subject to change at any time.
Please read our Terms and Conditions/Ordering Information for specifics on shipping and
handling, pricing,
payment, warranty, order forms, and other important information regarding your purchase.
ASTRONOMICAL FILTERS:
METHANE BANDPASS
Rugate Technologies has fabricated custom astronomical bandpass filters for the Gemini 8M
Telescope Project at Hilo, HI. A set
consists of a set of two complementary bandpass filters in the
near-infrared (NIR) spectral region that provide inband transmission
over 80%, out of band blocking
above OD 4, and superior edge
slopes of 1.2%. These filters operate at cryogenic temperature.
Call for pricing.
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- Custom-designed Infrared Notch Filters, Passband Filters, Dichroics,
and Beamsplitters are also available.
- Reflection and Transmission measurements
(on customer-supplied
substrates), visible to Far-Infrared, can also be provided.
THIN FILM PRODUCTS:
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Optical Mirrors:
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Enhanced
Aluminum |
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Re-aluminized
Telescope Mirrors |
50% Transmissive
Beamsplitters |
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RUGATE
FILTERS:
In additional to traditional discrete-layer optical coatings,
Rugate Technologies, Inc. specializes
in Rugate coatings. Rugate
coatings are optical interference films where the refractive
index of the film continuously and periodically grades as a function
of the film's optical thickness.
Rugate filters were originally
conceived as a means of providing narrow reflection notch filters.
By varying the index profile sinusoidally, rather than as a square
wave, and by controlling the index
excursion, very narrow notch
filters free of higher order harmonics can be produced. Due to
the
lack of higher order harmonics, multiple index profiles can
be easily superimposed to produce complex
spectral performance.
Consider Rugate Technology for your optical filter
requirements.
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SURPLUS OPTICAL COMPONENTS:
We have recently acquired a large number of high Precision
optical components.
These optics are typically BK-7, grade A
optical glass or fused silica (Suprasil 1 or Dynasil 1000).
We
are offering these optics in two categories: Laboratory Grade,
or High Precision.
- Laboratory Grade: are of high quality, but lack full
specification.
They are great for general laboratory use. A wide
variety of optics are available - call if you have a
specific
requirement.
- High Precision Optics: are components which were previously
sold as catalog optics to catalog specifications. Only high precision
optics are listed on-line.
Should the buyer find that the products do not meet their
application, the buyer has the right to return the products to
Rugate Technologies, within 30 days after receipt, for replacement
or credit.
Surplus optical components are uncoated.