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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 1.1
Published on 16 Nov 2012
Latest version: 1.2. All versions
doi:10.4231/D3V97ZR03 cite this
This tool is closed source.
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).