{ "id": "2001.02742", "version": "v1", "published": "2020-01-08T21:19:21.000Z", "updated": "2020-01-08T21:19:21.000Z", "title": "Self-Consistent Quantum-Field Theory for the Characterization of Complex Random Media by Short Laser Pulses", "authors": [ "Andreas Lubatsch", "Regine Frank" ], "comment": "(accepted) 14 pages, 7 figures", "categories": [ "cond-mat.dis-nn", "cond-mat.mes-hall", "cond-mat.soft", "physics.comp-ph", "physics.optics" ], "abstract": "We present a quantum-field theoretical method for the characterization of disordered complex media with short laser pulses. We solve this scheme of coherent transport in space and time with weighted essentially non-oscillatory methods (WENO), that are suitable for the determination of highly nonlinear and discontinuous procedures including interference effects and Anderson localization of light. The theory determines spatio-temporal characteristics of the scattering mean free path and the transmission cross section that are directly measurable in time of flight and pump-probe experiments. The results are a measure of the coherence of multiple scattering photons in passive as well as in optically soft random media. They are instructive in spectral regions where material characteristics such as the scattering mean free path and the diffusion coefficient are methodologically almost insensitive to gain or absorption and to higher order non-linear effects. Our method is applicable to optical coherence tomography (OCT) and advanced spectroscopy setups including samples of strongly scattering mono- and polydisperse complex nano- and micro-resonators.", "revisions": [ { "version": "v1", "updated": "2020-01-08T21:19:21.000Z" } ], "analyses": { "keywords": [ "short laser pulses", "self-consistent quantum-field theory", "complex random media", "scattering mean free path", "characterization" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }