Entangled photon-pair generation in metallo-dielectric photonic bandgap structures

被引：1

作者：

Javurek, D. ^{[1
]}

Svozilik, J. ^{[1
]}

Perina, J., Jr. ^{[2
]}

机构：

[1] Palacky Univ, Joint Lab Opt, RCPTM, 17 Listopadu 50A, Olomouc 77907, Czech Republic

[2] Palacky Univ, Joint Lab Opt, Inst Phys Acad Sci, Inst Phys ASCR, Olomouc 77207, Czech Republic

来源：

18TH CZECH-POLISH-SLOVAK OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS | 2012年 / 8697卷

关键词：

Spontaneous parametric down conversion; nonlinear metal; 1D metallo-dielectric photonic crystal; entangled photon pair;

D O I：

10.1117/12.2008682

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

1D metallo-dielectric photonic band gap structures are considered as efficient sources of entangled photon pairs. A quantum vectorial model of spontaneous parametric down conversion in layered media exploiting the expansion into monochromatic plane waves is applied to a structure composed of alternating Ta2O5/Ag layers. Nonlinear optical response of the metal originates here from the Lorentz force acting on oscillating free electrons. Higher localization of fields in both dielectric and metal regions as well as a very small value of skin depth in Ag result in higher generation efficiencies compared to purely dielectric photonic band-gap structures. Properties of photon pairs including polarization-resolved spectra are analyzed in the structure. A suitable numerical method guaranteeing high photon-pair generation rates is discussed.

引用

页数：7

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