Cryogenic Cooling Systems
The cryogenic cooling systems are
designed to cool detectors, optics, experimental materials and complete
instruments to cryogenic temperatures and to sustain them at these temperatures
for extended periods. Systems range in complexity from simple 5 lb unadorned
"cooling platforms" to complex >500 lb instruments complete with
computer controlled actuators, optics, and detectors. The final form of each
design is determined by the customer's requirements.
We provide high-performance
infrared detectors. A family of discrete detectors offer complete coverage of
the infrared spectral range. These detectors include Si bolometers as well as
In conjunction with Astronomical
Research Cameras, we developed a new set of controllers for IR-cameras
based on the CCD controllers developed by ARC. ARC/IRL controllers can be
adapted and expanded to support a wide range of IR-array detectors.
We offer a variety of optical components
for use in infrared detector systems. These products fall into six major
1. Far infrared filters
2. Neutral density filters
3. Vacuum windows
4. Winston cones
The far infrared filters represent a unique
blend of technologies. Filters are based on either a crystal or polyethylene
base laminated with combinations of AR and powdered crystal coatings. The
result is a precise, high performance filter.
The neutral density filters
provide highly accurate control over signal attenuation without chromatic
distortion. Metallic coatings are vacuum deposited on a number of different
substrate materials in order to provide the required performance.
Many different materials are offered in
the vacuum window line. Windows can be modified to meet specific performance
requirements by wedging or by the addition of special coatings.
The line of Winston cones offers
significant improvement in detector performance. There are currently over 50
standard models to choose from and the opportunity exists for custom
configurations. We design and produce advanced
reflective and refractive IR optical systems. This capability is particularly
useful for customers of infrared array cameras.
We offer electronic products that
fall into three major categories:
1. Warm preamplifiers
2. Cooled JFET amplifiers
3. Digital motor drive
The warm preamplifier line supports a broad variety
of detectors, ranging from Si bolometers to HgCdTe detectors. In every case
our extensive experience in analog circuit design results in high
performance, low noise solutions for your application.