Dr. Roberto Ramírez Alarcón

El objetivo del Laboratorio de Fotónica Cuántica del CIO es diseñar e implementar circuitos cuánticos fotónicos integrados en chips de sílice, para aplicaciones de información y cómputo cuántico. Las dos principales áreas de investigación en el laboratorio son:

• Desarrollo de fuentes de luz en estado cuántico optimizado e integradas en chips, basadas en procesos paramétricos espontáneos producidos en materiales ópticos como cristales no lineales, guías de onda o fibras ópticas para su aplicación directa en protocolos de información cuántica.
• Desarrollo de circuitos fotónicos cuánticos en chips de sílice con una arquitectura de óptica integrada.

Publicaciones recientes:

2019

• Zeferino Ibarra-Borja, Carlos Sevilla-Gutiérrez, Roberto Ramírez-Alarcón, Qiwen Zhan, Hector Cruz-Ramírez, and Alfred B. U’Ren. DIRECT OBSERVATION OF OAM CORRELATIONS FROM SPATIALLY ENTANGLED BI-PHOTON STATES. OSA OPTICS EXPRESS, Vol. 27, Issue 18, pp. 25228-25240, (2019), https://doi.org/10.1364/OE.27.025228
• Zeferino Ibarra-Borja, Carlos Sevilla-Gutiérrez, Roberto Ramírez-Alarcón, Hector Cruz-Ramírez, and Alfred B. U’Ren. EXPERIMENTAL DEMONSTRATION OF FULL-FIELD QUANTUM OPTICAL COHERENCE TOMOGRAPHY. OSA PHOTONICS RESEARCH, Vol. 8, Issue 1,pp. 51-56, (2020), https://doi.org/10.1364/PRJ.8.000051
• Pablo Yepiz Graciano, Alí Michel Angulo Martínez, Dorilian Lopez-Mago, Gustavo Castro-Olvera, Martha Rosete-Aguilar, Jesús Garduño-Mejía,Roberto Ramírez Alarcón,Héctor Cruz Ramírez & Alfred B. U’Ren. INTERFERENCE EFFECTS IN QUANTUM-OPTICAL COHERENCE TOMOGRAPHY USING SPECTRALLY ENGINEERED PHOTON PAIRS. SCIENTIFIC REPORTS, 8954 (2019). https://doi.org/10.1038/s41598-019-45088-0
• Dalia Gutiérrez-López, Mónica Maldonado-Terrón, R. Josué Hernández, Verónica Vicuña-Hernández, Roberto Ramírez-Alarcón, Héctor Cruz-Ramírez, Rocío Jáuregui, and Alfred B. U'Ren. SPATIAL CONTROL OF SPONTANEOUS PARAMETRIC DOWN-CONVERSION PHOTON PAIRS THROUGH THE USE OF APERTURED BESSEL-GAUSS PUMP BEAMS. PHYSICAL REVIEW A, Rev. A 100, 013802 – Published 2 July 2019, Vol. 100, Iss. 1 — July 2019, https://doi.org/10.1103/PhysRevA.100.013802

Otras publicaciones seleccionadas:

• E Ortiz-Ricardo, C Bertoni-Ocampo, Z Ibarra-Borja, R Ramirez-Alarcon, D Cruz-Delgado, H Cruz-Ramirez, K Garay-Palmett and A B U'Ren. Spectral tunability of two-photon states generated by spontaneous four-wave mixing: fibre tapering, temperature variation and longitudinal stress. Quantum Science and Technology, Volume 2, Number 3. https://doi.org/10.1088/2058-9565/aa7a37 (2017)
• D. Cruz-Delgado, R. Ramirez-Alarcon, E. Ortiz-Ricardo, J. Monroy-Ruz, F. Dominguez-Serna, H. Cruz-Ramirez, K. Garay-Palmett and A. B. U'Ren, "Fiber-based photon-pair source capable of hybrid entanglement in frequency and transverse mode, controllably scalable to higher dimensions", enviado a Scientific Reports.
• K. Garay-Palmett, D. Cruz-Delgado, F. Dominguez-Serna, E. Ortiz-Ricardo, J. Monroy-Ruz, H. Cruz-Ramirez, R. Ramirez-Alarcon and A. B. U'Ren, "Photon pair generation by intermodal spontaneous four wave mixing in birefringent, weakly guiding optical fibers", Phys. Rev. A 93, 033810 (2016).
• Aldo Solis, Alí M Angulo Martínez, Roberto Ramirez-Alarcon, Hector Cruz-Ramírez, Alfred B U'Ren and Jorge G Hirsch, “How random are random numbers generated using photons?”, Physica Scripta, Vol. 90, Number 7, (2015).
• Roberto Ramirez-Alarcon, Verónica Vicuña-Hernández, Héctor Cruz-Ramírez, and Alfred B. U’Ren, “Transverse amplitude transfer experiments based on the process of spontaneous parametric downconversion”, Physica Scripta, Vol. 90, Number 6, (2015).
• Verónica Vicuña-Hernández, Héctor Cruz-Ramírez, Roberto Ramirez-Alarcon, and Alfred B. U’Ren, “Classical to quantum transfer of optical vortices”, Optics Express, Vol. 22, Issue 17, pp. 20027-20037 (2014).
• Daniel Cruz-Delgado, Jorge Monroy-Ruz, Angela M. Barragan-Diaz, Erasto Ortiz-Ricardo, Hector Cruz-Ramirez, Roberto Ramirez-Alarcon, Karina Garay-Palmett and Alfred B. U'Ren, "Configurable spatio-temporal photon pair entanglement based on spontaneous four wave mixing with multiple transverse modes", Optics Letters, Vol. 39, Issue 12, pp. 3583-3586 (2014).
• R. Ramirez-Alarcon, H. Cruz-Ramirez and A.B. U'Ren, "Effects of crystal length effects on the angular spectrum of spontaneous parametric downconversion photon pairs" Laser Physics 23, (5), 055204, (2013).
• H. Cruz-Ramirez, R. Ramirez-Alarcon, F.J. Morelos, P. Quinto-Su, J.C. Gutierrez-Vega and A.B. U'Ren, "Observation of non-diffracting behavior at the single photon level" Optics Express, 20, 29761, (2012). Work presented in CQO-X at Rochester.
• H. Cruz-Ramirez, R. Ramirez Alarcon, M. Corona, K. Garay-Palmett and A. U’Ren, “Spontaneous Parametric Processes in Modern Optics”, Optics and Photonic News OSA, 22, (11), 36-41, (2011).