Spontaneous parametric down-conversion in one-dimensional photonic structures with boundaries

0478739 - FZÚ 2018 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Javůrek, D. - Peřina, Jan
Spontaneous parametric down-conversion in one-dimensional photonic structures with boundaries.
20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics. Bellingham: SPIE, 2016 - (Mullerová, J.; Senderáková, D.; Ladányi, L.; Scholtz, L.), s. 1-8, č. článku 1014216. Proceedings of SPIE, 10142. ISBN 978-1-5106-0733-0. ISSN 0277-786X.
[20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics (SCPOC). Jasna (SK), 05.09.2016-09.09.2016]
Institucionální podpora: RVO:68378271
Klíčová slova: spontaneous parametric down conversion * nonlinear layered structure * 1D nonlinear photonic crystal * photon pair
Obor OECD: Optics (including laser optics and quantum optics)

Emission of photon pairs has been numerically investigated in both the volume and at the boundaries of layered Gallium-Nitride/Aluminium-Nitride (GaN/AIN) structures that occurs in the process of spontaneous parametric down conversion (SPDC). The developed model of SPDC is one dimensional and exploits the quantization of momentum of an electromagnetic field (EM field). Nonlinear boundary conditions for the quantized EM field between the linear (AIN) and nonlinear (GaN) layers are treated by the transfer-matrix formalism. The developed theory describes both the volume and interface emissions of photon pairs and it also allows for their separation. The emission of photon pairs from interfaces contributes by 9.7 % of total number of emitted photon pairs. In the spectral regions with low volume emission, the spectral joint photon number density for interface emitted photon pairs reaches up to 40 % of the quantity characterizing the photon pairs emitted in the volume.

Trvalý link: http://hdl.handle.net/11104/0274815