Eur. Phys. J. D 57, 411-418 (2010)
https://doi.org/10.1140/epjd/e2010-00050-7

X-ray spontaneous emission control by 1-dimensional photonic bandgap structure

Laboratoire de Chimie Physique – Matière et Rayonnement, UPMC Univ. Paris 6, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France CNRS – UMR 7614, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France

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Received: 18 November 2009
Revised: 4 January 2010
Published online: 2 March 2010

Abstract

The possibility of controlling the X-ray spontaneous emission of atoms embedded in a 1-dimensional photonic bandgap structure by the so-called Purcell effect, is studied. Calculations of the spontaneously emitted power are presented from Fermi's golden rule in the framework of the Wigner-time approach extended to absorbing media. Numerical simulations are compared to experimental results for the case of the K emission from silicon atoms excited by electrons within a Mo/Si multilayer Bragg reflector. The inhibition or enhancement of X-ray emission from such structures appear to be feasible.