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Single-photon counting system for measuring laser parameters.

T G Miller¹, D R Womack, J R Williams

¹U. S. Army Missile Research and Development Command, Redstone Arsenal, Alabama 35809, USA.

The Review of Scientific Instruments

|August 1, 1979

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A new single-photon counting system measures gas laser parameters using charged particle excitation. This method determines excited-state lifetimes and reaction rates for laser development.

Area of Science:

Atomic and Molecular Physics
Laser Physics
Plasma Physics

Background:

Accurate measurement of gas laser parameters is crucial for developing advanced laser systems.
Existing methods may lack the precision or temporal resolution required for certain gas mixtures.
Understanding excited-state dynamics is key to optimizing laser performance.

Purpose of the Study:

To develop and validate a novel single-photon counting system for precise gas laser parameter measurement.
To investigate the temporal response of emitted radiation in excited gas mixtures.
To determine key kinetic parameters influencing laser performance.

Main Methods:

Utilizing a linear accelerator to generate nanosecond-wide pulses of heavy charged particles.

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Last Updated: Jul 2, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Injecting charged particles into a specialized gas cell containing candidate laser mixtures.

Observing and analyzing the temporal response of emitted radiation across various wavelengths.

Calculating excited-state lifetimes, reaction rate constants, and quenching rate constants from the data.

Main Results:

Successfully developed a single-photon counting system capable of measuring gas laser parameters.
Demonstrated the system's ability to resolve temporal dynamics of emitted radiation.
Obtained preliminary data on excited-state lifetimes and rate constants for specific gas mixtures.

Conclusions:

The developed single-photon counting system is effective for characterizing gas laser parameters.
This technique provides valuable kinetic data for the advancement of laser technology.
Further examination of nuclear-pumped laser candidate gases is ongoing.