Related Experiment Video
Updated: Jun 15, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
CO(2) (10.6-microm) atmospheric propagation enhancement due to off-line center tuning
Abstract:
A new analysis is presented for the atmospheric transmission of the CO(2)(P-20) line, which includes pressure shift, bleaching, and tuning off-line center. The results indicate that absorption is negligible above 25 km for an atmospheric CO(2) laser, even at line center, with the resulting transmission equal to 0.5 from sea level and 0.75 from 2.5 km altitude, midlatitude summer. Cavity tuning of about 0.1 cm(-1) produces a transmission of 0.97 from 2.5 km, with a corresponding large decrease in thermal blooming, but with little decrease of cavity efficiency for a well-saturated atmospheric pressure cavity, since the linewidth of the latter is considerably larger than that of the atmosphere.
Related Concept Videos
Propagation Speed of Electromagnetic Waves
Doppler Effect - II
¹³C NMR: ¹H–¹³C Decoupling
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Doppler Effect - I
Transmission Line Design Considerations