Results 1 to 10 of about 33,898 (194)

Development of single photon source based on micro-ring resonator for quantum memories [PDF]

EPJ Web of Conferences, 2023
We design a photon pair source with emission at 606 nm and 3.98 MHz linewidth, which matches the spectral properties of praseodymium ions. To reduce the linewidth the use of cavity-enhanced spontaneous four-wave mixing was proposed.
Durán-Gómez Juan Samuel Sebastián, Gómez-Robles Mauricio, Ramírez-Alarcón Roberto, Rodríguez-Becerra Gerardo José, Tavares-Ramírez Gerardo José, Salas-Montiel Rafael   +5 more
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Celebrating a face-to-face congress of young researchers in Optics after the pandemic years: the I NW MYRO [PDF]

EPJ Web of Conferences, 2022
This contribution reports the organization and celebration after the Covid-19 pandemic of a singular scientific conference focused on early-career researchers from the Spanish universities of Santiago de Compostela and Salamanca: the “I Northwest Meeting
Carnero Bastián, de las Heras Alba, Doval Alejandro, Martín-Rodríguez Álex, Muñoz-Ramos Alicia, García-Cabrera Ana, Rodríguez-Fernández Carlos Damián, Insua-Costa Damián, Romo-Díez Irene, Rodríguez-Pérez Isabel, Prada-Rodrigo Javier, Varela-Carballo Javier, Sánchez-Hernández María, Martínez-Morillo María Jesús, Guerras-Rodríguez Mario, Pérez Millán, Fernández-Rodicio Sabela, Villa-Ortega Verónica, Segundo-Staels Víctor W., Flores-Arias María Teresa   +19 more
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Partially coherent surface plasmon modes [PDF]

Journal of the European Optical Society-Rapid Publications, 2011
Elementary long-range plasmon modes are described assuming an exponential dependence of the refractive index in the neighbourhood of the interface dielectric-metal thin film. The study is performed using coupling mode theory. The interference between two
Niconoff G. Martínez, Vara P. Martínez, Munoz-Lopez J., Juárez-Morales J.C., Carbajal-Dominguez A.   +4 more
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Wavelength-tunable picosecond pulses from a passively mode-locked figure-eight Erbium-doped fiber laser with a Sagnac fiber filter [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
We experimentally demonstrated a wavelength-tunable passively mode-locked Erbium-doped figure-eight fiber laser. Wide tunability is achieved using a high-birefringence (hi-bi) fiber Sagnac loop.
Ibarra-Escamilla B., Pottiez O., Haus J. W., Kuzin E. A., Bello-Jiménez M., Flores-Rosas A.   +5 more
doaj   +1 more source

Degree of polarization and quantum-mechanical purity [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
The purity parameter is used in quantum mechanics to discriminate pure states from mixed states. We employ this concept to define a degree of polarization for general, three-dimensional, classical random electric fields.
Moya-Cessa H., Moya-Cessa J.R., Landgrave J. E. A., Martínez-Niconoff G., Pérez-Leija A., Friberg A. T.   +5 more
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Alguns aspectos da óptica do olho humano [PDF]

Revista Brasileira de Ensino de Física, 2011
Este trabalho descreve alguns aspectos da óptica do olho humano adotando uma abordagem progressiva. Iniciaremos estudando um sistema visual muito simples e iremos incluindo os vários ingredientes que compõem o olho humano.
Otaviano Helene, André Frazão Helene
doaj   +1 more source

Virtual UR5 Robot for Online Learning of Inverse Kinematics and Independent Joint Control Validated with FSM Position Control

Robotics, 2023
Virtual remote laboratories have already been successfully implemented in educational centers for practical learning of mechatronics and robotic systems.
Filemon Arenas-Rosales, Fernando Martell-Chavez, Irma Y. Sanchez-Chavez, Carlos A. Paredes-Orta   +3 more
doaj   +1 more source

Measurements and estimation of the columnar optical depth of tropospheric aerosols in the UV spectral region [PDF]

Annales Geophysicae, 2002
We report values of the columnar tropospheric aerosol optical depth at UV wavelengths based on experimental measurements of the direct spectral irradiances carried out by a commercial spectroradiometer (Li1800 of Licor company) covering the range ...
V. E. Cachorro, V. E. Cachorro, V. E. Cachorro, R. Vergaz, M. J. Martin, A. M. de Frutos, J. M. Vilaplana, B. de la Morena   +7 more
doaj   +1 more source

Transmittance of tapered photonic crystal fibers with absorbing coatings [PDF]

EPJ Web of Conferences, 2020
The interaction of the adiabatically tapered photonic crystal fiber fundamental mode with a thin-film absorbing coating, deposited on a surface of a taper waist, on transmission of a tapered fiber is studied.
Salazar Sicacha Mauricio, Minkovich Vladimir P., Sotsky Alexander B., Shilov Artur V., Sotskaya Luidmila I.   +4 more
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On the Prediction of Chaotic Time Series using Neural Networks

Chaos Theory and Applications, 2022
Prediction techniques have the challenge of guaranteeing large horizons for chaotic time series. For instance, this paper shows that the majority of techniques can predict one step ahead with relatively low root-mean-square error (RMSE) and Symmetric ...
Ericka Janet Rechy-ramirez, Astrid Maritza Gonzalez-zapata, Josue Alexis Martinez-garcia, Esteban Tlelo-cuautle   +3 more
doaj   +1 more source