A four-level system is a typical model describing the process of lasing. It is widely used to model gain media. This tool 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).
The GUI of PhotonicsGAIN-0D is developed using the Matlab GUIDE library. The FDTD solver is written as Matlab scripts. The GUI and the solver are then compiled.
• J. Fang ... Developed the GUI, integrated the FDTD engine, and tested the tool
• L. J. Prokopeva ... Validated the theory, developed the FDTD engine, and tested the tool
• J. Trieschmann... Validated the theory, and tested the tool
• N. Arnold… Validated the code with an alternative numerical simulation, and tested the tool
• A. V. Kildishev ... Developed the very first FDTD and FEM prototypes of the code and led the entire effort
• Vlad Drachev, University of North Texas… useful discussions of the theoretical and experimental details
• Thomas Klar, Johannes Kepler University, Linz Austria… useful discussions of the theoretical and experimental details
• ERC starting grant "Active NP", #257158
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Cite this work
Researchers should cite this work as follows:
Jieran Fang; Ludmila Prokopeva; Jan Trieschmann; Nikita Arnold; Alexander V. Kildishev (2012), "PhotonicsGAIN-0D", http://nanohub.org/resources/testgain0d.