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PhotonicsGAIN-0D

By Jieran Fang1, Ludmila Prokopeva1, Jan Trieschmann2, Nikita Arnold3, Alexander V. Kildishev1

1. Purdue University 2. Ruhr University Bochum 3. Johannes Kepler University, Linz

Time-domain numerical simulation of the local response of a generic four-level gain system to its excitation with a pump-probe pulse sequence.

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Archive Version 1.2
Published on 24 Apr 2013
Latest version: 1.3. All versions

doi:10.4231/D3PK07200 cite this

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Abstract

A four-level system is a typical model describing the process of lasing. It is widely used to model gain media. PhotonicsGAIN-0D simulates the local response (0-dimenstion) of a generic 4-level system interacting with one or two sequential incident light pulses. The code uses the local electric field, to compute the population kinetics at each energy level, and monitors the polarization evolution in time domain. Then, the effective susceptibility is calculated in frequency domain through the Fast Fourier transform (FFT).

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