Numerical Simulation of Ultra-Fast Pulse Propagation in Two-Photon Absorbing Medium
Abstract
Developed a versatile numerical technique that allows us to calculate the energy, the temporal shape, the spectrum and the phase of an ultrashort pulse propagating in multi-photon absorbing medium with fully realistic spectral shapes and absorption profiles. This approach is based on solving straightforward ODE instead of Maxwell-Bloch type equations, which usually require FTDT calculations. Furthermore, the solver is implemented using 100% commercial software (Mathematica ver. 8) running on a conventional multi-core PC platform, which avoids complications and increased costs associated with need for custom-produced code and/or large-scale computing facilities. This fact in itself is quite remarkable, especially because we were solving a set of stochastic equations that required extensive averaging. First, verifying the accuracy of the calculation by comparing to some simple analytical formulas and demonstrate its utility by analyzing the optical power limiting performance of a known two-photon organic chromophore. Also, show that the calculation yields full information about the amplitude and phase of the pulse. Looking forward, we envision the new solver can be applied for the simulation and analysis of a broad range of physical problems including coherent- and incoherent regimes of optical power limiting, saturation, CEP effects, soliton formation etc. It can be also used for optimization of Materials that are used in multi-photon microscopy and imaging.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2011
- Accession Number
- ADA548015
Entities
People
- Aleks Rebane
- Raivo Stern
Organizations
- National Institute of Chemical Physics and Biophysics