Time-resolved spatial structure of TEA CO_2 laser pulses

The evolution of the intensity profile of TEA CO_2 laser pulses along the pulse length is investigated both analytically and experimentally. A simple scalar model of the pulse amplitude is introduced, which gives the loaded-cavity modes as a linear combination of bidimensional Hermite-Gauss function...

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Bibliographic Details
Authors: Serna Galán, Julio, Encinas Sanz, Fernando, Martínez Herrero, María Rosario, Mejías Arias, Pedro Miguel
Format: article
Publication Date:2000
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/58588
Online Access:https://hdl.handle.net/20.500.14352/58588
Access Level:Open access
Keyword:535
Parametric Characterization
Optical-Systems
Beam Parameters
Light
Laws
Óptica (Física)
2209.19 Óptica Física
Description
Summary:The evolution of the intensity profile of TEA CO_2 laser pulses along the pulse length is investigated both analytically and experimentally. A simple scalar model of the pulse amplitude is introduced, which gives the loaded-cavity modes as a linear combination of bidimensional Hermite-Gauss functions. According to this model a number of equations are derived which link the time-varying spatial structure of the pulse to its time-resolved second-order intensity moments, namely, the beam width and the M^2 parameter.