Visualitzant Institute of New Imaging Technologies (INIT) per títol
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Diffractive digital lensless holographic microscopy with fine spectral tuning
Optical Society of America (2013)We experimentally demonstrate an all-diffractive optical setup for digital lensless holographic microscopy with easy wavelength line selection and micrometric resolution. In the proposed system, an ultrashort laser pulse ... -
Diffractive optics for quasi-direct space-to-time pulse shaping
Optical Society of America (2008)The strong chromatic behavior associated with a conventional diffractive lens is fully exploited to propose a novel optical device for pulse shaping in the femtosecond regime. This device consists of two optical elements: ... -
Diffractive optics for spectral control of the supercontinuum generated in sapphire with femtosecond pulses
Optical Society of America (2011)We propose the use of kinoform diffractive lenses to focus near infrared femtosecond pulses in sapphire crystals for supercontinuum generation. It is shown that a strongly peaked structure appears in the blue region of the ... -
Dipolar localization of waves in twisted phononic crystal plates
American Physical Society (2021-01-11)The localization of waves in two-dimensional clusters of scatterers arranged in relatively twisted lattices is studied by multiple scattering theory. It is found that, for a given frequency, it is always possible to nd ... -
Direct lightweight temporal compression for wearable sensor data
IEEE (2021-02-01)Emerging technologies enable massive deployment of wireless sensor networks across many industries. Internet of Things (IoT) devices are often deployed in critical infrastructure or health monitoring and require fast ... -
Direct retrieval method of the effective permittivity and permeability of bulk semi-infinite metamaterials by variable-angle spectroscopic ellipsometry
OSA Publishing (2019)In this work, we present a simple method for the direct retrieval of the effective permittivity and permeability of a bulk semi-infinite metamaterial from variable-angle spectroscopic ellipsometry measurements. Starting ... -
Directional analysis for point patterns on linear networks
Wiley (2020)Statistical analysis of point processes often assumes that the underlying process is isotropic in the sense that its distribution is invariant under rotation. For point processes on R2 , some tests based on the K- and ... -
Discovering location based services: A unified approach for heterogeneous indoor localization systems
Elsevier B.V. (2021-03-01)The technological solutions and communication capabilities offered by the Internet of Things paradigm, in terms of raising availability of wearable devices, the ubiquitous internet connection, and the presence on the ... -
Discovering places of interest in everyday life from smartphone data
Springer (2013)In this paper, a new framework to discover places-of-interest from multimodal mobile phone data is presented. Mobile phones have been used as sensors to obtain location information from users’ real lives. A place-of-interest ... -
Dispersion management in two-photon microscopy by using diffractive optical elements
Optical Society of America (2013)We demonstrate efficient generation of wide-field fluorescence signals in two-photon microscopy exploiting diffractive optical elements and short pulses by using a dispersion-compensated beam delivery optics module. ... -
Dispersión Raman mejorada en superficie mediada por la adsorción de nanopartículas metálicas generadas con láser sobre óxido de grafeno
Sociedad Española de Óptica (SEDO) (2022-11)La espectroscopia Raman proporciona una huella dactilar de la composición y la estructura de la mayoría de los materiales de forma rápida y no destructiva. Sin embargo, la eficacia de la dispersión Raman es mucho menor ... -
Dissimilarity-Based Linear Models for Corporate Bankruptcy Prediction
Springer (2019-03)Bankruptcy prediction has acquired great relevance for financial institutions due to the complexity of global economies and the growing number of corporate failures, especially since the world financial crisis of 2008. In ... -
Distance-based beta regression for prediction of mutual funds
Springer (2015-01)In the context of regression with a beta-type response variable, we propose a new method that links two methodologies: a distance-based model, and a beta regression with variable dispersion. The proposed model is useful ... -
Do Monetary Incentives Influence Users’ Behavior in Participatory Sensing?
MDPI (2018)Participatory sensing combines the powerful sensing capabilities of current mobile devices with the mobility and intelligence of human beings, and as such has to potential to collect various types of information at a high ... -
Downstream Services for Rice Crop Monitoring in Europe: From Regional to Local Scale
Institute of Electrical and Electronics Engineers (IEEE) (2017-04)The ERMES agromonitoring system for rice cultivations integrates EO data at different resolutions, crop models, and user-provided in situ data in a unified system, which drives two operational downstream services for rice ... -
Dual electro-optic comb spectroscopy using a single pseudo-randomly driven modulator
Optica Publishing Group (2022-07-04)We present a dual-comb scheme based on a single intensity modulator driven by inexpensive board-level pseudo-random bit sequence generators. The result is a simplified architecture that exhibits a long mutual coherence ... -
Dual-comb spectroscopy using a single electro-optic modulator
Optica Publishing Group (2023)We show that a single electro-optic modulator driven by tailored electrical waveforms can generate a dual-comb spectrum. The resulting system is a remarkably robust spectroscopic tool with the potential to be exploited in ... -
Dual-mode optical microscope based on single-pixel imaging
Elsevier (2016-03)We demonstrate an inverted microscope that can image specimens in both reflection and transmission modes simultaneously with a single light source. The microscope utilizes a digital micromirror device (DMD) for patterned ... -
Dynamic Control of Interference Effects Between Optical Filaments through Programmable Optical Phase Modulation
IEEE (2016-06)Light beams shaped by programmable megapixel spatial light modulators (SLMs) are key to broadening the applications of photonics. In this paper, we consider the application of a SLM for the generation of two mutually ... -
Dynamic freeform diffractive lens
Optica Publishing Group (2023-03-31)In the framework of the scalar theory of diffraction a surface-pixeled convergent lens for arbitrary amplitude and phase modulation along the depth of focus is introduced. This complex diffractive lens is computer-generated ...