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Harmonic generation with ultrashort pulses using nonlinear poled polymeric thin films.

M A Mortazavi, D Yankelvich, A Dienes

|June 18, 2010

Summary

An organic thin film functions as a second harmonic element for measuring ultrashort optical pulses. This advancement enables precise characterization of 200-femtosecond laser pulses.

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Area of Science:

Optics and Photonics
Materials Science

Background:

Autocorrelation is crucial for characterizing ultrashort optical pulses.
Nonlinear optical elements are commonly used in pulse measurement techniques.

Purpose of the Study:

To investigate the efficacy of an organic thin film as a second harmonic generation (SHG) element.
To demonstrate its application in the autocorrelation measurement of ultrashort optical pulses.

Main Methods:

Fabrication and characterization of an organic thin film.
Implementation of the organic thin film in an autocorrelation setup.
Measurement of 200-femtosecond optical pulses.

Main Results:

The organic thin film successfully functioned as a second harmonic element.

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Accurate autocorrelation measurements of ultrashort optical pulses were achieved.

Conclusions:

Organic thin films are viable and effective nonlinear optical materials for pulse characterization.
This approach offers a potential alternative for ultrafast optical pulse measurement.