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Low-background large-aperture infrared measurement facility: performance.

R H Meier, A B Dauger

|March 6, 2010

Summary

This summary is machine-generated.

A new infrared (IR) measurement facility creates a simulated exoatmospheric environment for radiant flux testing. This facility provides tunable monochromatic and broadband irradiance measurements for advanced optical research.

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Area of Science:

Optical Engineering
Infrared Technology
Radiometry

Background:

Accurate measurement of radiant flux in simulated space environments is crucial for optical systems.
Existing facilities may lack the capability for tunable monochromatic and broadband exoatmospheric simulations.

Purpose of the Study:

To design, build, and evaluate a novel infrared measurement facility.
To characterize the radiant flux properties of the generated beam in a simulated exoatmospheric environment.

Main Methods:

Construction of a facility generating a 43-cm diameter collimated beam.
Utilized a calibrated integral three-grating spectroradiometer for broadband and spectral irradiance measurements.
Estimated diffraction losses at the source aperture.

Main Results:

The facility successfully generated a collimated beam in a simulated exoatmospheric environment.
Measured irradiance values spanned a range of 10^8, exhibiting a near-Planckian distribution at high flux densities.
The source demonstrated tunability for monochromatic radiation from 2 to 32 micrometers.

Conclusions:

The novel IR measurement facility is capable of producing a well-characterized radiant flux beam.
The facility meets the requirements for simulating exoatmospheric conditions for optical testing and research.
The ability to provide both broadband and tunable monochromatic radiation enhances its versatility.