2026-04-18T03:34:52Zhttps://recercat.cat/oai/requestoai:recercat.cat:2117/132932026-01-21T10:01:23Zcom_2072_1033col_2072_452950
RECERCAT
author
Sheng, Yan
author
Roppo, Vito
author
Kong, Qian
author
Kalinowski, K.
author
Wang, Qi
author
Cojocaru, Crina
author
Trull Silvestre, José Francisco
author
Krolikowski, W.
2011-07-01
We investigate theoretically the Čerenkov-type second-harmonic generation in two-dimensional bulk nonlinear photonic crystal with longitudinal modulation of the χ(2) nonlinearity. We show that in this scheme the Čerenkov radiation can be achieved simultaneously at multiple directions with comparable intensities. The angles of emission are controllable by the spatial modulation of the nonlinearity. We propose a design of the periodically poled domain pattern, which maximizes the efficiency of the second-harmonic emission.Peer ReviewedPostprint (published version)
Open Access
Àrees temàtiques de la UPC::Física::Física de partícules::Fotons
Čerenkov THG
Photonic crystal
Txerenkov GTH
Cristalls fotònics
Tailoring Cerenkov second-harmonic generation in bulk nonlinear photonic crystal
Article