Dr. Josep Nicolàs Profile

Dr. Josep Nicolàs

at ALBA Synchrotron

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 21 August 2024 Paper

MINERVA, a new x-ray facility at the ALBA Synchrotron devoted to assemble and characterize the Silicon Pore Optics Mirror Modules for the NewATHENA mission

Dominique Heinis, Antonio Carballedo, Albert Van Eeckhout, Marc Sánchez Hidalgo, Núria Valls Vidal, Alejandro Sánchez, Josep Nicolàs, Maximilien Collon, Giuseppe Vacanti, Luis Abalo, Dieter Skroblin, Levent Cibik, Michael Krumrey, Marcos Bavdaz

Proceedings Volume 13093, 130934X (2024) https://doi.org/10.1117/12.3017800

KEYWORDS: X-rays, Sensors, Mirrors, Detector arrays, Synchrotrons, Silicon, X-ray optics, Laser soldering, Reflection, Optical alignment

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Proceedings Article | 12 July 2023 Open Access

MINERVA installation status: an x-ray facility for the characterization of the ATHENA mirror modules at the ALBA synchrotron

Dominique Heinis, Antonio Carballedo, Carles Colldelram, Guifré Cuni, Núria Valls Vidal, Alejandro Sánchez, Joan Casas, Josep Nicolàs, Maximilien Collon, Giuseppe Vacanti, Michael Krumrey, Ivo Ferreira, Marcos Bavdaz

Proceedings Volume 12777, 1277721 (2023) https://doi.org/10.1117/12.2689958

KEYWORDS: Vacuum chambers, X-rays, Mirrors, Autocollimators, Synchrotrons, Astronomical imaging, Silicon, X-ray characterization, Scintillators, Laser soldering

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Proceedings Article | 7 June 2023 Presentation + Paper

The stitching interferometry system of ALBA

A. Van Eeckhout, I. Sics, L. Ribó, C. Colldelram, J. Nicolas

Proceedings Volume 12576, 125760E (2023) https://doi.org/10.1117/12.2665674

KEYWORDS: Fizeau interferometers, Stitching interferometry, Mirrors, Mirror surfaces, Calibration, Optical surfaces

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Proceedings Article | 11 June 2021 Open Access

X-ray facility for the characterization of the Athena mirror modules at the ALBA synchrotron

Dominique Heinis, Antonio Carballedo, Carles Colldelram, Guifré Cuní, Núria Valls Vidal, Óscar Matilla, Jordi Marcos, Alejandro Sánchez, Joan Casas, Josep Nicolàs, Nicolas Barrière, Maximilien Collon, Giuseppe Vacanti, Evelyn Handick, Peter Müller, Michael Krumrey, Ivo Ferreira, Marcos Bavdaz

Proceedings Volume 11852, 1185222 (2021) https://doi.org/10.1117/12.2599350

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Proceedings Article | 17 October 2018 Paper

Development of the new long trace profilometer at LCLS for bendable x-ray mirror metrology

M. L. Ng, J. Nicolas, D. Spiga, C. Hardin, D. Morton, D. Cocco

Proceedings Volume 10761, 1076106 (2018) https://doi.org/10.1117/12.2323293

KEYWORDS: Mirrors, Metrology, Optical components, Calibration, X-rays, Tolerancing, CCD cameras

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Proceedings Article | 18 September 2018 Presentation

The transform limited SXR monochromator with ultra-high-resolution option to open up new scientific capabilities at LCLS II (Conference Presentation)

Daniele Cocco, Georgi Dakovski, Serge Guillet, Corey Hardin, Daniel Morton, Josep Nicolas, Frank O'Dowd, David Rich, Joseph Stieber, Randy Whitney

Proceedings Volume 10761, 1076103 (2018) https://doi.org/10.1117/12.2322941

KEYWORDS: Monochromators, Liquid crystal lasers, Mirrors, Light sources, Stanford Linear Collider, Hard x-rays, Laser scattering, Scattering, Liquids, Optical design

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Proceedings Article | 3 October 2017 Presentation

Status of the metrology laboratory for the LCLS II project (Conference Presentation)

May Ling Ng, Corey L. Hardin, Josep Nicolas, Daniele Cocco

Proceedings Volume 10385, 103850E (2017) https://doi.org/10.1117/12.2275562

KEYWORDS: Liquid crystal lasers, Metrology, Interferometers, Interferometry, Mirrors, Head, Mirror stabilization, Profilometers, Autocollimators, Prototyping

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Proceedings Article | 14 June 2017 Presentation + Paper

Development of a hard x-ray split-delay system at the Linac Coherent Light Source

Diling Zhu, Yanwen Sun, Donald Schafer, Hongliang Shi, Justin James, Karl Gumerlock, Ted Osier, Randy Whitney, Lin Zhang, Josep Nicolas, Brian Smith, Andrew Barada, Aymeric Robert

Proceedings Volume 10237, 102370R (2017) https://doi.org/10.1117/12.2265171

KEYWORDS: Scattering, X-rays, Crystals, Hard x-rays, Free electron lasers, Light sources, X-ray optics, Dynamic light scattering, Picosecond phenomena, Femtosecond phenomena, Light scattering

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Proceedings Article | 27 October 2016 Presentation + Paper

Nanometer figure correction of x-ray mirrors using multiple spring actuators

Josep Nicolas, Carles Colldelram, Claude Ruget, Llibert Ribó, Pablo Pedreira, Pedro de la Rubia, Carlos Martín-Nuño, David Úbeda, Albert Tomàs

Proceedings Volume 9965, 996503 (2016) https://doi.org/10.1117/12.2239533

KEYWORDS: Mirrors, Actuators, Metrology, X-rays, X-ray optics, Light sources, Spatial frequencies, Prototyping, Spatial resolution, Mechanics

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Proceedings Article | 27 October 2016 Presentation + Paper

Optimizing x-ray mirror thermal performance using variable length cooling for second generation FELs

Corey Hardin, Venkat Srinivasan, Lope Amores, Nicholas Kelez, Daniel Morton, Peter Stefan, Josep Nicolas, Lin Zhang, Daniele Cocco

Proceedings Volume 9965, 996505 (2016) https://doi.org/10.1117/12.2235825

KEYWORDS: Mirrors, Free electron lasers, X-rays, Hard x-rays, Thermal effects, Grazing incidence, Liquid crystal lasers, Stanford Linear Collider, Computer aided design, Actuators

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Proceedings Article | 8 September 2016 Presentation + Paper

Ray-tracing as a tool for efficient specification of beamline optical components

P. Pedreira, I. Sics, M. Llonch, J. Ladrera, Ll. Ribó, C. Colldelram, J. Nicolas

Proceedings Volume 9962, 99620H (2016) https://doi.org/10.1117/12.2237599

KEYWORDS: Optical components, Optical alignment, Mirrors, Optics manufacturing, Mechanics, Optical design, Diagnostics, Spectral resolution, Tolerancing, Ray tracing

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Proceedings Article | 8 September 2016 Presentation + Paper

Nanometer accuracy with continuous scans at the ALBA-NOM

Josep Nicolas, Pablo Pedreira, Igors Šics, Claudio Ramírez, Juan Campos

Proceedings Volume 9962, 996203 (2016) https://doi.org/10.1117/12.2238128

KEYWORDS: Autocollimators, Mirrors, Denoising, X-ray optics, Laser beam diagnostics, Motion measurement, Nano opto mechanical systems, Time metrology, Data acquisition, Synchrotrons

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Proceedings Article | 30 September 2013 Paper

Uses of spatial light modulators for colour optical processing

Juan Campos, Ignacio Moreno, Josep Nicolas, María Yzuel

Proceedings Volume 8833, 88330A (2013) https://doi.org/10.1117/12.2023641

KEYWORDS: Fourier transforms, Spatial light modulators, RGB color model, Optical filters, Diffraction gratings, 3D image processing, Optical correlators, Oxygen, Optical signal processing, LCDs

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Proceedings Article | 27 September 2013 Paper

Modulation of intensity in defocused beams

Josep Nicolas, Gastón García

Proceedings Volume 8848, 884810 (2013) https://doi.org/10.1117/12.2024528

KEYWORDS: Mirrors, Modulation, Visibility, Spatial frequencies, Mirror pointing, Synchrotrons, Monte Carlo methods, Convolution, X-rays, Sensors

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Proceedings Article | 27 September 2013 Paper

The Alba ray tracing code: ART

Josep Nicolas, Alessandro Barla, Jordi Juanhuix

Proceedings Volume 8848, 88480Z (2013) https://doi.org/10.1117/12.2024439

KEYWORDS: Optical components, Mirrors, Ray tracing, Crystals, Diffraction, X-rays, Optical simulations, Capillaries, Synchrotrons, MATLAB

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Proceedings Article | 27 September 2013 Paper

Error compensation for the calibration of mechanical mirror benders

Josep Nicolas, Juan Campos

Proceedings Volume 8848, 88480K (2013) https://doi.org/10.1117/12.2024510

KEYWORDS: Mirrors, Calibration, Polishing, Nano opto mechanical systems, Surface finishing, Error analysis, Measurement devices, Autocollimators, Chemical elements, Profilometers

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Proceedings Article | 27 September 2013 Paper

Optimization of the soft x-ray transmission microscopy beamline at the ALBA light source

Andrea Sorrentino, Eva Pereiro, Ricardo Valcárcel, Salvador Ferrer, Josep Nicolas

Proceedings Volume 8848, 884811 (2013) https://doi.org/10.1117/12.2024531

KEYWORDS: Mirrors, Monochromators, X-ray microscopy, Microscopes, Optical components, Optics manufacturing, Light sources, X-rays, Optical alignment, Tolerancing

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SPIE Journal Paper | 1 November 2011

New method to improve the accuracy in a sequential lateral shearing interferometer

Josep Vidal González, Josep Nicolàs, Juan Campos

OE, Vol. 50, Issue 11, 115601, (November 2011) https://doi.org/10.1117/12.10.1117/1.3651814

KEYWORDS: Error analysis, Interferometers, Shearing interferometers, Fizeau interferometers, Optical engineering, Numerical simulations, Interferometry, Deflectometry, Synchrotrons, Light sources

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Proceedings Article | 24 August 2009 Paper

Methods to improve the accuracy of the surface reconstruction with a Fizeau interferometer

Josep Vidal, Josep Nicolas, Juan Campos

Proceedings Volume 7448, 744802 (2009) https://doi.org/10.1117/12.825968

KEYWORDS: Error analysis, Interferometers, Fizeau interferometers, Fourier transforms, Algorithm development, Mirrors, Optics manufacturing, Data analysis, Statistical analysis, Synchrotrons

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Proceedings Article | 17 June 2009 Paper

Analysis of the positioning error on lateral shearing surface reconstruction with a Fizeau interferometer

Josep Vidal, Josep Nicolas, Juan Campos

Proceedings Volume 7390, 73900N (2009) https://doi.org/10.1117/12.827779

KEYWORDS: Error analysis, Mirrors, Fizeau interferometers, Optics manufacturing, Solids, X-rays, Statistical analysis, Fourier transforms, Synchrotrons, Metrology

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Proceedings Article | 5 June 2009 Open Access

Training physics degree students in a research optics laboratory

Josep Vidal, Angel Lizana, Alba Peinado, Elena Aso, David Lopez, Josep Nicolás, Juan Campos, Maria Yzuel

Proceedings Volume 9666, 96661J (2009) https://doi.org/10.1117/12.2208039

KEYWORDS: Physics, LCDs, Polarimetry, Polarization, Analytical research, Liquid crystal on silicon, Mirrors, Metrology, Image processing, Error analysis

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Proceedings Article | 10 September 2004 Paper

Correction of aberrations in an optical correlator by using it as a point diffraction interferometer

Claudio Iemmi, Alfonso Moreno, Josep Nicolas, Juan Campos

Proceedings Volume 5457, (2004) https://doi.org/10.1117/12.545753

KEYWORDS: Optical correlators, LCDs, Phase shifts, Wavefronts, Point diffraction interferometers, Optical filters, Phase measurement, Fourier transforms, Liquid crystals, Interferometry

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Proceedings Article | 1 September 2004 Paper

Diffraction efficiency of phase-only diffractive elements displayed onto twisted nematic liquid crystal displays

Ignacio Moreno, Andres Marquez, Josep Nicolas, Juan Campos, Maria Yzuel

Proceedings Volume 5456, (2004) https://doi.org/10.1117/12.533293

KEYWORDS: Modulation, Phase shift keying, LCDs, Phase modulation, Diffraction, Polarization, Wave plates, Polarizers, Binary data, Liquid crystals

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Proceedings Article | 10 November 2003 Paper

Review of operating modes for twisted nematic liquid crystal displays for applications in optical image processing

Jeffrey Davis, Maria Yzuel, Juan Campos, Ignacio Moreno, Andres Marquez, Josep Nicolas

Proceedings Volume 5181, (2003) https://doi.org/10.1117/12.510257

KEYWORDS: LCDs, Phase shift keying, Modulation, Birefringence, Phase modulation, Polarization, Image processing, Polarizers, Liquid crystals, Linear polarizers

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SPIE Journal Paper | 1 July 2003

Multichannel optical correlator for texture classification

Joaquim Barbe, Juan Campos, Josep Nicolas, Claudio Iemmi

OE, Vol. 42, Issue 07, (July 2003) https://doi.org/10.1117/12.10.1117/1.1580156

KEYWORDS: Image filtering, Optical correlators, Image classification, Optical filters, Spatial light modulators, Filtering (signal processing), Linear filtering, Signal processing, Phase only filters, Wave plates

SPIE Journal Paper | 1 December 2002

Programmable wave plates using a twisted nematic liquid crystal display

Josep Nicolas, Jeffrey Davis

OE, Vol. 41, Issue 12, (December 2002) https://doi.org/10.1117/12.10.1117/1.1520542

KEYWORDS: LCDs, Wave plates, Birefringence, Polarization, Linear polarizers, Polarizers, Phase shifts, Sensors, Argon ion lasers, Physics

Proceedings Article | 30 November 2001 Paper

Optimization of liquid crystal displays behavior in optical image processing and in diffractive optics

Juan Campos, Andres Marquez, Josep Nicolas, Ignacio Soriano Moreno, Claudio Iemmi, Juan Escalera, Jeffrey Davis, Maria Josefa Yzuel

Proceedings Volume 10302, 103020H (2001) https://doi.org/10.1117/12.449679

KEYWORDS: LCDs, Image processing, Image filtering, Spatial light modulators, Transmittance, Optical design, Phase shift keying, Modulation, Optical properties, Liquid crystals

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Proceedings Article | 13 November 2001 Paper

3D filter design for color pattern recognition

Maria Yzuel, Josep Nicolas, I. Moreno, Juan Campos

Proceedings Volume 4471, (2001) https://doi.org/10.1117/12.449354

KEYWORDS: 3D image processing, Fourier transforms, Optical filters, RGB color model, Pattern recognition, Image filtering, 3D acquisition, Phase only filters, Spatial light modulators, Phase shift keying

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Proceedings Article | 14 August 2001 Paper

Real time correlator with liquid crystal panels: modulation optimization

Josep Nicolas, Claudio Iemmi, Juan Campos, Maria Yzuel

Proceedings Volume 4419, (2001) https://doi.org/10.1117/12.437063

KEYWORDS: Spatial light modulators, LCDs, Modulation, Optical correlators, Phase shift keying, Phase only filters, Phase modulation, Wave plates, Liquid crystals, Linear polarizers

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Proceedings Article | 14 August 2001 Paper

Parallel multichannel optical correlator for frequency subband decomposition

J. Barbe, Juan Campos, Claudio Iemmi, Josep Nicolas

Proceedings Volume 4419, (2001) https://doi.org/10.1117/12.437127

KEYWORDS: Image filtering, Image classification, Filtering (signal processing), Optical filters, Optical correlators, Linear filtering, Fourier transforms, Image processing, Signal processing, Laser optics

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