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Julia Marín-Sáez
Applied Physics Section of the Environmental Science Department, Polytechnic School, University of Lleida, Jaume II 69, 25001 Lleida, Spain

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Journal article
Published: 04 March 2020 in Applied Optics
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A novel stacking procedure is presented for volume phase holographic gratings (VPHGs) recorded in photopolymer material using Corning Willow Glass as a flexible substrate in order to achieve broader angular and spectral selectivity in a diffractive device with high efficiency for solar and LED applications. For the first time to our knowledge, we have shown a device designed for use with a white LED that has the same input and output angles and high efficiency when illuminated by different wavelengths. In this paper, two VPHGs were designed, experimentally recorded, and tested when illuminated at normal incidence. The experimental approach is based on stacking two individual gratings in which the spatial frequency and slant have been tailored to the target wavelength and using real-time on-Bragg monitoring of the gratings in order to control the recorded refractive index modulation, thereby optimizing each grating efficiency for its design wavelength. Lamination of the two gratings together was enabled by using a flexible glass substrate (Corning Willow Glass). Recording conditions were studied in order to minimize the change in diffraction efficiency and peak diffraction angle during lamination and bleaching. The final fabricated stacked device was illuminated by a white light source, and its output was spectrally analyzed. Compared to a single grating, the stacked device demonstrated a twofold increase in angular and wavelength range. The angular and wavelength selectivity curves are in good agreement with the theoretical prediction for this design. This approach could be used to fabricate stacked lenses for white light LED or solar applications.

ACS Style

Sanjay Keshri; Julia Marín-Sáez; Izabela Naydenova; Kevin Murphy; Jesus Atencia; Daniel Chemisana; Sean Garner; M. V. Collados; Suzanne Martin. Stacked volume holographic gratings for extending the operational wavelength range in LED and solar applications. Applied Optics 2020, 59, 2569 -2579.

AMA Style

Sanjay Keshri, Julia Marín-Sáez, Izabela Naydenova, Kevin Murphy, Jesus Atencia, Daniel Chemisana, Sean Garner, M. V. Collados, Suzanne Martin. Stacked volume holographic gratings for extending the operational wavelength range in LED and solar applications. Applied Optics. 2020; 59 (8):2569-2579.

Chicago/Turabian Style

Sanjay Keshri; Julia Marín-Sáez; Izabela Naydenova; Kevin Murphy; Jesus Atencia; Daniel Chemisana; Sean Garner; M. V. Collados; Suzanne Martin. 2020. "Stacked volume holographic gratings for extending the operational wavelength range in LED and solar applications." Applied Optics 59, no. 8: 2569-2579.

Journal article
Published: 14 May 2019 in Applied Energy
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A holographic solar concentrating system with a Silicon photovoltaic (PV) cell is designed, constructed and characterized. The design is based on a previous system and is further optimized. The cylindrical holographic lenses forming the concentrating system are modeled with a ray-tracing algorithm based on Coupled Wave Theory and are recorded on Bayfol® HX photopolymer. Measurements are carried out outdoors with solar illumination and provide a current density of 146 mA/cm2 with a current concentration factor of 3.48, validating the theoretical simulations results (172 mA/cm2 and 3.81, respectively). The effect of the temperature on the performance of the Holographic Optical Elements (HOEs) is studied and taking it into account by assuming a 1.3° tilt of the fringes of the hologram caused by thermal expansion (which is reversible if the HOEs are encapsulated and sealed) provides simulation results closer to the experimental ones (a current density value of 155 mA/cm2 and current concentration of 3.43). The ageing of HOEs recorded in Bayfol® HX photopolymer due to the outdoor environmental conditions is also analyzed, revealing the need of encapsulation and sealing.

ACS Style

Julia Marín-Sáez; Daniel Chemisana; Jesús Atencia; María-Victoria Collados. Outdoor performance evaluation of a holographic solar concentrator optimized for building integration. Applied Energy 2019, 250, 1073 -1084.

AMA Style

Julia Marín-Sáez, Daniel Chemisana, Jesús Atencia, María-Victoria Collados. Outdoor performance evaluation of a holographic solar concentrator optimized for building integration. Applied Energy. 2019; 250 ():1073-1084.

Chicago/Turabian Style

Julia Marín-Sáez; Daniel Chemisana; Jesús Atencia; María-Victoria Collados. 2019. "Outdoor performance evaluation of a holographic solar concentrator optimized for building integration." Applied Energy 250, no. : 1073-1084.

Journal article
Published: 28 March 2018 in Optics Express
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Concentrating photovoltaics for building integration can be successfully carried out with Holographic Optical Elements (HOEs) because of their behavior analogous to refractive optical elements and their tuning ability to the spectral range that the photovoltaic (PV) cell is sensitive to. That way, concentration of spectral ranges that would cause overheating of the cell is avoided. Volume HOEs are usually chosen because they provide high efficiencies. However, their chromatic selectivity is also very high, and only a small part of the desired spectral range reaches the PV cell. A novel approach is theoretically and experimentally explored to overcome this problem: the use of HOEs operating in the transition regime, which yield lower chromatic selectivity while keeping rather high efficiencies. A model that considers the recording material’s response, by determining the index modulation reached for each spatial frequency and exposure dosage, has been developed. It has been validated with experimental measurements of three cylindrical holographic lenses with different spatial frequency ranges recorded in Bayfol HX photopolymer. Simulations of systems comprising two lenses and a mono-c Si PV cell are carried out with the standard AM 1.5D solar spectrum. Promising results are obtained when using the system with lower spatial frequencies lenses: a total current intensity equal to 3.72 times the one that would be reached without the concentrator.

ACS Style

Julia Marín-Sáez; Jesús Atencia; Daniel Chemisana; María-Victoria Collados. Full modeling and experimental validation of cylindrical holographic lenses recorded in Bayfol HX photopolymer and partly operating in the transition regime for solar concentration. Optics Express 2018, 26, A398 -A412.

AMA Style

Julia Marín-Sáez, Jesús Atencia, Daniel Chemisana, María-Victoria Collados. Full modeling and experimental validation of cylindrical holographic lenses recorded in Bayfol HX photopolymer and partly operating in the transition regime for solar concentration. Optics Express. 2018; 26 (10):A398-A412.

Chicago/Turabian Style

Julia Marín-Sáez; Jesús Atencia; Daniel Chemisana; María-Victoria Collados. 2018. "Full modeling and experimental validation of cylindrical holographic lenses recorded in Bayfol HX photopolymer and partly operating in the transition regime for solar concentration." Optics Express 26, no. 10: A398-A412.

Proceedings article
Published: 15 May 2017 in Holography: Advances and Modern Trends V
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The use of volume and phase holographic elements in the design of photovoltaic solar concentrators has become very popular as an alternative solution to refractive systems, due to their high efficiency, low cost and possibilities of building integration. Angular and chromatic selectivity of volume holograms can affect their behavior as solar concentrators. In holographic lenses, angular and chromatic selectivity varies along the lens plane. Besides, considering that the holographic materials are not sensitive to the wavelengths for which the solar cells are most efficient, the reconstruction wavelength is usually different from the recording one. As a consequence, not all points of the lens work at Bragg condition for a defined incident direction or wavelength. A software tool that calculates the direction and efficiency of solar rays at the output of a volume holographic element has been developed in this study. It allows the analysis of the total energy that reaches the solar cell, taking into account the sun movement, the solar spectrum and the sensitivity of the solar cell. The dependence of the recording wavelength on the collected energy is studied with this software. As the recording angle is different along a holographic lens, some zones of the lens could not act as a volume hologram. The efficiency at the transition zones between volume and thin behavior in lenses recorded in Bayfol HX is experimentally analyzed in order to decide if the energy of generated higher diffraction orders has to be included in the simulation. © (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

ACS Style

Julia Marín-Sáez; M. Victoria Collados; Daniel Chemisana; Jesús Atencia. Energy analysis of holographic lenses for solar concentration. Holography: Advances and Modern Trends V 2017, 10233, 1023317 .

AMA Style

Julia Marín-Sáez, M. Victoria Collados, Daniel Chemisana, Jesús Atencia. Energy analysis of holographic lenses for solar concentration. Holography: Advances and Modern Trends V. 2017; 10233 ():1023317.

Chicago/Turabian Style

Julia Marín-Sáez; M. Victoria Collados; Daniel Chemisana; Jesús Atencia. 2017. "Energy analysis of holographic lenses for solar concentration." Holography: Advances and Modern Trends V 10233, no. : 1023317.

Proceedings article
Published: 15 May 2017 in Holography: Advances and Modern Trends V
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True colour Denisyuk-type hologram recording of diffusing objects in Bayfol® HX 102 self-developing photopolymer has been studied. In a first stage, monochromatic Denisyuk holograms of a standard white diffuser (Spectralon) have been recorded using lasers with wavelengths 442, 532 and 633 nm to determine the optimum exposure that gives maximum efficiency. The recording of holograms from a diffusing object has the particularity that intermodulation noise due to interference between waves arriving from different object points reduces effective index modulation. A maximum effective efficiency of 80% has been reached for monochromatic recording. In a second stage, a set of experiments has been carried out to determine the adequate relation of exposure for the recording of a Denisyuk hologram of the standard white diffuser with the three lasers simultaneously to get the maximum efficiency for each wavelength. With the determined optimal exposure, a hologram of a polychromatic diffusing object has been recorded, obtaining a good visual coincidence between hologram and original object. © (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

ACS Style

Irene Vázquez-Martín; Marina Gómez Climente; Julia Marín-Sáez; M. Victoria Collados; Jesús Atencia. True colour Denisyuk-type hologram recording in Bayfol HX self-developing photopolymer. Holography: Advances and Modern Trends V 2017, 10233, 102331 .

AMA Style

Irene Vázquez-Martín, Marina Gómez Climente, Julia Marín-Sáez, M. Victoria Collados, Jesús Atencia. True colour Denisyuk-type hologram recording in Bayfol HX self-developing photopolymer. Holography: Advances and Modern Trends V. 2017; 10233 ():102331.

Chicago/Turabian Style

Irene Vázquez-Martín; Marina Gómez Climente; Julia Marín-Sáez; M. Victoria Collados; Jesús Atencia. 2017. "True colour Denisyuk-type hologram recording in Bayfol HX self-developing photopolymer." Holography: Advances and Modern Trends V 10233, no. : 102331.

Book chapter
Published: 01 March 2017 in Vortex Dynamics and Optical Vortices
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Holographic Optical Elements to Generate Achromatic Vortices with Ultra-Short and Ultra-Intense Laser Pulses | InTechOpen, Published on: 2017-03-01. Authors: María-Victoria Collados, Íñigo J. Sola, Julia Marín-Sáez, et

ACS Style

María-Victoria Collados; Iñigo J. Sola; Julia Marín-Sáez; Warein Holgado; Jesús Atencia. Holographic Optical Elements to Generate Achromatic Vortices with Ultra-Short and Ultra-Intense Laser Pulses. Vortex Dynamics and Optical Vortices 2017, 1 .

AMA Style

María-Victoria Collados, Iñigo J. Sola, Julia Marín-Sáez, Warein Holgado, Jesús Atencia. Holographic Optical Elements to Generate Achromatic Vortices with Ultra-Short and Ultra-Intense Laser Pulses. Vortex Dynamics and Optical Vortices. 2017; ():1.

Chicago/Turabian Style

María-Victoria Collados; Iñigo J. Sola; Julia Marín-Sáez; Warein Holgado; Jesús Atencia. 2017. "Holographic Optical Elements to Generate Achromatic Vortices with Ultra-Short and Ultra-Intense Laser Pulses." Vortex Dynamics and Optical Vortices , no. : 1.

Journal article
Published: 25 July 2016 in Energies
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A building integrated holographic concentrating photovoltaic-thermal system has been optically and energetically simulated. The system has been designed to be superimposed into a solar shading louvre; in this way the concentrating unit takes profit of the solar altitude tracking, which the shading blinds already have, to increase system performance. A dynamic energy simulation has been conducted in two different locations—Sde Boker (Israel) and Avignon (France)—both with adequate annual irradiances for solar applications, but with different weather and energy demand characteristics. The simulation engine utilized has been TRNSYS, coupled with MATLAB (where the ray-tracing algorithm to simulate the holographic optical performance has been implemented). The concentrator achieves annual mean optical efficiencies of 30.3% for Sde Boker and 43.0% for the case of Avignon. Regarding the energy production, in both locations the thermal energy produced meets almost 100% of the domestic hot water demand as this has been considered a priority in the system control. On the other hand, the space heating demands are covered by a percentage ranging from 15% (Avignon) to 20% (Sde Boker). Finally, the electricity produced in both places covers 7.4% of the electrical demand profile for Sde Boker and 9.1% for Avignon.

ACS Style

Julia Marín-Sáez; Daniel Chemisana; Álex Moreno; Alberto Riverola; Jesús Atencia; María-Victoria Collados. Energy Simulation of a Holographic PVT Concentrating System for Building Integration Applications. Energies 2016, 9, 577 .

AMA Style

Julia Marín-Sáez, Daniel Chemisana, Álex Moreno, Alberto Riverola, Jesús Atencia, María-Victoria Collados. Energy Simulation of a Holographic PVT Concentrating System for Building Integration Applications. Energies. 2016; 9 (8):577.

Chicago/Turabian Style

Julia Marín-Sáez; Daniel Chemisana; Álex Moreno; Alberto Riverola; Jesús Atencia; María-Victoria Collados. 2016. "Energy Simulation of a Holographic PVT Concentrating System for Building Integration Applications." Energies 9, no. 8: 577.

Journal article
Published: 31 May 2016 in Physical Review A
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The generation of tunable laser light in the green to orange spectral range has generally been a deficiency of solid-state lasers. Hence, the formalisms of difference frequency generation (DFG) and optical parametric processes are well known, but the DFG of pulsed solid-state lasers was rarely efficient enough for its use in resonance ionization spectroscopy. Difference frequency generation of high-repetition-rate Ti:sapphire lasers was demonstrated for resonance ionization of sodium by efficiently exciting the well-known D1 and D2 lines in the orange spectral range (both ≈589 nm). In order to prove the applicability of the laser system for its use at resonance ionization laser ion sources of radioactive ion beam facilities, the first ionization potential of Na was remeasured by three-step resonance ionization into Rydberg levels and investigating Rydberg convergences. A result of EIP=41449.455(6)stat(7)syscm−1 was obtained, which is in perfect agreement with the literature value of EIPlit=41449.451(2)cm−1. A total of 41 level positions for the odd-parity Rydberg series nfF25/2,7/2o for principal quantum numbers of 10≤n≤60 were determined experimentally.

ACS Style

P. Naubereit; J. Marín-Sáez; F. Schneider; A. Hakimi; Michael Franzmann; T. Kron; S. Richter; K. Wendt. Resonance ionization spectroscopy of sodium Rydberg levels using difference frequency generation of high-repetition-rate pulsed Ti:sapphire lasers. Physical Review A 2016, 93, 052518 .

AMA Style

P. Naubereit, J. Marín-Sáez, F. Schneider, A. Hakimi, Michael Franzmann, T. Kron, S. Richter, K. Wendt. Resonance ionization spectroscopy of sodium Rydberg levels using difference frequency generation of high-repetition-rate pulsed Ti:sapphire lasers. Physical Review A. 2016; 93 (5):052518.

Chicago/Turabian Style

P. Naubereit; J. Marín-Sáez; F. Schneider; A. Hakimi; Michael Franzmann; T. Kron; S. Richter; K. Wendt. 2016. "Resonance ionization spectroscopy of sodium Rydberg levels using difference frequency generation of high-repetition-rate pulsed Ti:sapphire lasers." Physical Review A 93, no. 5: 052518.

Journal article
Published: 18 March 2016 in Optics Express
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Volume Holographic Optical Elements (HOEs) present interesting characteristics for photovoltaic applications as they can select spectrum for concentrating the target bandwidth and avoiding non-desired wavelengths, which can cause the decrease of the performance on the cell, for instance by overheating it. Volume HOEs have been recorded on Bayfol HX photopolymer to test the suitability of this material for solar concentrating photovoltaic systems. The HOEs were recorded at 532 nm and provided a dynamic range, reaching close to 100% efficiency at 800 nm. The diffracted spectrum had a FWHM of 230 nm when illuminating at Bragg angle. These characteristics prove HOEs recorded on Bayfol HX photopolymer are suitable for concentrating solar light onto photovoltaic cells sensitive to that wavelength range.

ACS Style

Julia Marín-Sáez; Jesús Atencia; Daniel Chemisana; María-Victoria Collados. Characterization of volume holographic optical elements recorded in Bayfol HX photopolymer for solar photovoltaic applications. Optics Express 2016, 24, A720 -A730.

AMA Style

Julia Marín-Sáez, Jesús Atencia, Daniel Chemisana, María-Victoria Collados. Characterization of volume holographic optical elements recorded in Bayfol HX photopolymer for solar photovoltaic applications. Optics Express. 2016; 24 (6):A720-A730.

Chicago/Turabian Style

Julia Marín-Sáez; Jesús Atencia; Daniel Chemisana; María-Victoria Collados. 2016. "Characterization of volume holographic optical elements recorded in Bayfol HX photopolymer for solar photovoltaic applications." Optics Express 24, no. 6: A720-A730.

Journal article
Published: 30 June 2015 in Optica Pura y Aplicada
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ACS Style

J. Marin-Saez; M. V. Collados; I. J. Sola; J. Atencia. White-light optical vortices generated with holographic optical elements. Optica Pura y Aplicada 2015, 48, 129 -133.

AMA Style

J. Marin-Saez, M. V. Collados, I. J. Sola, J. Atencia. White-light optical vortices generated with holographic optical elements. Optica Pura y Aplicada. 2015; 48 (2):129-133.

Chicago/Turabian Style

J. Marin-Saez; M. V. Collados; I. J. Sola; J. Atencia. 2015. "White-light optical vortices generated with holographic optical elements." Optica Pura y Aplicada 48, no. 2: 129-133.

Journal article
Published: 18 May 2015 in Optics Express
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A ray tracing algorithm is developed to analyze the energy performance of transmission and phase volume holographic lenses that operate with broadband illumination. The agreement between the experimental data and the theoretical treatment has been tested. The model has been applied to analyze the optimum recording geometry for solar concentration applications.

ACS Style

Paula Bañares-Palacios; Samuel Álvarez-Álvarez; Julia Marín-Sáez; María-Victoria Collados; Daniel Chemisana; Jesús Atencia. Broadband behavior of transmission volume holographic optical elements for solar concentration. Optics Express 2015, 23, A671 -A681.

AMA Style

Paula Bañares-Palacios, Samuel Álvarez-Álvarez, Julia Marín-Sáez, María-Victoria Collados, Daniel Chemisana, Jesús Atencia. Broadband behavior of transmission volume holographic optical elements for solar concentration. Optics Express. 2015; 23 (11):A671-A681.

Chicago/Turabian Style

Paula Bañares-Palacios; Samuel Álvarez-Álvarez; Julia Marín-Sáez; María-Victoria Collados; Daniel Chemisana; Jesús Atencia. 2015. "Broadband behavior of transmission volume holographic optical elements for solar concentration." Optics Express 23, no. 11: A671-A681.

Journal article
Published: 30 August 2013 in Optics Express
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A compound holographic optical element to generate achromatic vortices with high efficiency, based on the combination of two volume phase holograms, is designed and constructed. This element is compact and easy to align. It has high damage threshold, so it can be used with ultraintense laser pulses.

ACS Style

Jesús Atencia; María-Victoria Collados; Manuel Quintanilla; Julia Marín-Sáez; Íñigo Sola. Holographic optical element to generate achromatic vortices. Optics Express 2013, 21, 21057 -21062.

AMA Style

Jesús Atencia, María-Victoria Collados, Manuel Quintanilla, Julia Marín-Sáez, Íñigo Sola. Holographic optical element to generate achromatic vortices. Optics Express. 2013; 21 (18):21057-21062.

Chicago/Turabian Style

Jesús Atencia; María-Victoria Collados; Manuel Quintanilla; Julia Marín-Sáez; Íñigo Sola. 2013. "Holographic optical element to generate achromatic vortices." Optics Express 21, no. 18: 21057-21062.