Program

P.20 -- Poster, NCTP-40

Date: Monday, 27 July 2015

Time: 14h00 - 15h30

AUTOIONIZATION WITH FANO PROFILE AND BROAD-BAND CHAOTIC LIGHT - PHOTOELECTRON SPECTRA

Doan Quoc Khoa (1), Cao Long Van (2,3), Hoang Xuan Tam (4)

(1) Quang Tri Teacher Training College, Km3, Highway No 9, Dong Ha, Quang Tri, Viet Nam; (2) Quantum Optics and Engineering Division, Institute of Physics, University of Zielona Góra, Prof. A. Szafrana 4a, 65-516 Zielona Góra, Poland; (3) Faculty of Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland; (4) Hong Duc University, 565 Quang Trung, Thanh Hoa, Viet Nam

Fano profiles which with their asymmetric character have many potential applications in technology: The design of Fano profiles into optical systems may create new non-linear and switchable metamaterials, high-quality optical waveguides, ultrasensitive media for chemical or biosensing etc. Recently the Fano model has been considered in the cases of electromagnetically induced transparency for Lambda systems with degenerate and non-degenerate autoionizing levels. In this paper, we consider an external field driven double Fano model introduced by Leoński and his coworkers. We assume that the external electromagnetic field can be decomposed into two parts: coherent part and white noise. This assumption corresponds to the case of the real multimode laser operating without any correlation between the modes. We solve a set of coupled stochastic integro-differential equations involving the Fano model with two discrete levels and two levels of the same energy. We derive an exact formula by determining the photoelectron spectrum and detail it to two interesting physical limits: weak and strong fluctuations and compare it with the results obtained earlier.

Presenter: Doan Quoc Khoa