41 citations · 198 across the 11 of their papers we have counts for
9 papers · 1 filter
Entangled two-photon absorption in transmission-based experiments: deleterious effects from linear optical losses
Freiman Triana-Arango, Roberto Ramírez-Alarcón, Gabriel Ramos-Ortiz
Recently different experimental schemes have been proposed to study the elusive phenomenon of entangled two-photon absorption (ETPA) in nonlinear materials. The attempts to detect…
Spectral considerations of Entangled two-photon absorption effects in Hong-Ou-Mandel interference experiments
Freiman Triana-Arango, Gabriel Ramos-Ortiz, Roberto Ramírez-Alarcón
Recently, different experimental methods intended to detect the entangled two-photon absorption (ETPA) phenomenon in a variety of materials have been reported. The present work exp…
Submegahertz spectral width photon pair source based on fused silica microspheres
Erasto Ortiz Ricardo, Cesar Bertoni Ocampo, Mónica Maldonado Terrón +5
High efficiency, sub-MHz bandwidth photon pair generators will enable the field of quantum technology to transition from laboratory demonstrations to transformational applications…
Fiber-based photon-pair source capable of hybrid entanglement in frequency and transverse mode, controllably scalable to higher dimensions
D. Cruz-Delgado, R. Ramirez-Alarcon, E. Ortiz-Ricardo +5
We have designed and implemented a photon-pair source, based on the spontaneous four wave mixing (SFWM) process in a few-mode fiber, in a geometry which permits multiple, simultane…
Photon pair generation by intermodal spontaneous four wave mixing in birefringent, weakly guiding optical fibers
K. Garay-Palmett, D. Cruz-Delgado, F. Dominguez-Serna +5
We present a theoretical and experimental study of the generation of photon pairs through the process of spontaneous four wave mixing (SFWM) in a few-mode, birefringent fiber. Unde…
Classical to quantum transfer of optical vortices
Veronica Vicuna-Hernandez, Hector Cruz-Ramirez, Roberto Ramirez-Alarcon +1
We show that an optical vortex beam, implemented classically, can be transferred to the transverse amplitude of a heralded single photon. For this purpose we have relied on the pro…
Configurable spatio-temporal properties in a photon-pair source based on spontaneous four wave mixing with multiple transverse modes
Daniel Cruz-Delgado, Jorge Monroy-Ruz Angela M. Barragan, Erasto Ortiz-Ricardo +4
We present an experimental and theoretical study of photon pairs generated by spontaneous four wave mixing (SFWM), based on birefringent phasematching, in a fiber which supports mo…
Observation of non-diffracting behavior at the single-photon level
Hector Cruz-Ramirez, Roberto Ramirez-Alarcon, Francisco J. Morelos +3
We demonstrate the generation of non-diffracting heralded single photons, i.e. which are characterized by a single-photon transverse intensity distribution which remains essentiall…
Effects of crystal length on the angular spectrum of spontaneous parametric downconversion photon pairs
Roberto Ramirez-Alarcon, Hector Cruz-Ramirez, Alfred B. U'Ren
We present a theoretical and experimental analysis of the joint effects of the transverse electric field distribution and of the nonlinear crystal characteristics on the properties…