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Related Experiment Video

Updated: Jun 16, 2026

Evaluation of Photosynthetic Behaviors by Simultaneous Measurements of Leaf Reflectance and Chlorophyll Fluorescence Analyses

Evaluation of Photosynthetic Behaviors by Simultaneous Measurements of Leaf Reflectance and Chlorophyll Fluorescence Analyses

Published on: August 9, 2019

Photometer for submillimeter measurements.

P Grenier, A Langlet, B Talureau

|February 4, 2010

Summary

This summary is machine-generated.

We developed a new photometer and blackbody calibrator for measuring submillimeter sky emissions. These instruments enable precise observations of cosmic background radiation at wavelengths greater than 500 micrometers.

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Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

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Published on: February 18, 2014

Area of Science:

Astronomy and Astrophysics
Cosmology

Background:

Understanding the cosmic microwave background (CMB) and other large-scale sky emissions is crucial for cosmology.
Submillimeter wavelengths probe early universe phenomena and interstellar medium properties.

Purpose of the Study:

To introduce a novel photometer system for submillimeter astronomical observations.
To present a low-temperature calibration blackbody designed for accurate sky emission measurements.

Main Methods:

Development of a specialized photometer for detecting faint submillimeter signals.
Construction of a stable, low-temperature blackbody source for instrument calibration.
Measurement of sky background emission at wavelengths exceeding 500 micrometers.

Main Results:

The designed photometer and blackbody are functional and suitable for submillimeter measurements.
Initial measurements demonstrate the capability to characterize sky background emission.

Conclusions:

The new instrumentation facilitates precise measurements of submillimeter sky background.
This work contributes to improved observational capabilities in submillimeter astronomy.