Listar por autor "Schmid, Jens H."
Mostrando ítems 21-40 de 58
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Diseño de filtros ópticos integrados con respuesta espectral arbitraria en tecnología de silicio sobre aislante
Pereira-Martín, Daniel; Wanguemert-Pérez, Juan Gonzalo
; Molina-Fernández, Íñigo; Cheben, Pavel; Schmid, Jens H.; Ye, Winnie N.; Ctyroky, Jiri; Ortega-Moñux, Alejandro[et al.] (2019-09-10)
Silicon photonics is one of the most promising technologies nowadays, with myriads of potential applications in communications and sensing. Many of these applications require spectral filters synthesizing arbitrary frequency ... -
Diseño de grating couplers de orden cero de banda ancha y alta eficiencia para el infrarrojo medio
Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Luque-González, José Manuel; Molina-Fernández, Íñigo; Cheben, Pavel; Halir, Robert; Schmid, Jens H.; Ortega-Moñux, Alejandro[et al.] (2017-09-27)
The mode fields of optical fibers and high-index contrast photonic waveguides have different dimensions, making difficult the coupling of light from one to the other. To solve this problem, surface grating couplers are one ... -
Dispositivos de interferencia multimodal 2×2 de banda ultraancha basados en estructuras periódicas sub-longitud de onda para las bandas O-E-S-C
Pérez-Armenta, Carlos; Ortega-Moñux, Alejandro; Luque-González, José Manuel; Halir, Robert; Schmid, Jens H.; Cheben, Pavel; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo[et al.] (2021)
Los dispositivos de interferencia multimodal (MMI) son un bloque funcional fundamental en óptica integrada. La creciente demanda de capacidad en los enlaces de comunicaciones ópticas motiva la búsqueda de nuevas formas de ... -
Engineering sub-wavelength silicon waveguides for sensing applications in the near-infrared and mid-infrared band
Wanguemert-Pérez, Juan Gonzalo; Sánchez-Postigo, Alejandro; Hadij-El-Houati, Abdelfettah; Leuermann, Jonas; Pérez-Armenta, Carlos; Luque-González, José Manuel; Ortega-Moñux, Alejandro; Halir, Robert; Molina-Fernández, Íñigo; Cheben, Pavel; Xu, Dan-Xia; Schmid, Jens H.; Ctyroky, Jiri; Soler-Penades, Jordi; Nedeljkovic, Milos; Mashanovich, Goran Z.[et al.] (2019-02-08)
Silicon photonics is one of the most promising candidates to achieve lab-on-a-chip systems. Making use of the evanescent-field sensing principle, it is possible to determine the presence and concentration of substances by ... -
Engineering the optical properties of silicon using sub-wavelength structures
Halir, Robert; Ortega-Moñux, Alejandro; Maese-Novo, Alejandro; Pérez-Galacho, Diego; Zavargo-Peche, Luis; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo; Cheben, Pavel; Schmid, Jens H.; Xu, Dan-Xia; Janz, Siegfried; Fedeli, Jean-Marc[et al.] (IEEE Photonics Society, 2013)
In most integrated optics platforms, including silicon-on-insulator, only minor modifications in refractive index are possible. The geometry of the waveguiding structure is thus the only degree of freedom for the design ... -
Enhanced sensitivity subwavelength grating waveguides for silicon photonics sensing applications
Wanguemert-Pérez, Juan Gonzalo; Hadij-El-Houati, Abdelfettah; Sánchez-Postigo, Alejandro; Leuermann, Jonas; Pereira-Martín, Daniel; Luque-González, José Manuel; Cheben, Pavel; Xu, Dan-Xia; Schmid, Jens H.; Ctyroky, Jiri; Soler-Penades, Jordi; Nedeljkovic, Milos; Mashanovich, Goran Z.; Ortega-Moñux, Alejandro; Halir, Robert; Molina-Fernández, Íñigo[et al.] (2019-07-16)
In this work we will review the enormous potential of subwavelength grating waveguides for sensing applications in the near and mid-infrared bands, demonstrating the capability to engineer the mode profile to maximize the ... -
High performance and small footprint spot size converters based on SWG metamaterial lenses
Luque-González, José Manuel; Molina-Fernández, Íñigo; Ortega-Moñux, Alejandro; Halir, Robert; Schmid, Jens H.; Cheben, Pavel[et al.] (2018-06-28)
Spot size converters with high expansion ratio are required in a variety of situations. This is the case of non-focusing Silicon on Insulator (SOI) fiber-to-chip grating couplers, which typically require long adiabatic ... -
High performance silicon photonic devices based on practical metamaterials
Halir, Robert; Luque-González, José Manuel; Sánchez-Postigo, Alejandro; Herrero-Bermello, Alaine; González-Andrade, David; Hadij-El-Houati, Abdelfettah; Leuermann, Jonas; Pereira-Martín, Daniel; Ortega-Moñux, Alejandro; Ctyroky, Jiri; Wanguemert-Pérez, Juan Gonzalo; Velasco, Aitor V.; Sánchez-Rodriguez, Marina; De-Oliva-Rubio, José; Schmid, Jens H.; Soler-Penades, Jordi; Nedeljkovic, Milos; Mashanovich, Goran Z.; Cheben, Pavel; Molina-Fernández, Íñigo[et al.] (2019-07-15)
Subwavelength grating metamaterials are enabling a new generation of high-performance silicon photonic devices. Here we discuss the fundamental physics along with some of the latest advances in this rapidly expanding field. -
Integrated metamaterial surface-emitting antenna for beam steering applications
Ginel-Moreno, Pablo; Sánchez-Postigo, Alejandro; De-Oliva-Rubio, José; Hadij-El-Houati, Abdelfettah; Ye, Winnie N.; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (2021-12)
Integrated optical antennas are relevant devices for the development of next-generation LIDAR systems. Here we experimentally demonstrate a new topology to implement long antennas in silicon-on-insulator platform. The ... -
Low-loss curved waveguide grating wavelength demultiplexer
Hadij-El-Houati, Abdelfettah; Ortega-Moñux, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Halir, Robert; Wang, Shurui; Schmid, Jens H.; Cheben, Pavel; Molina-Fernández, Íñigo[et al.] (2021)
We demonstrate a compact wavelength demultiplexer for the silicon on insulator platform based on the curved waveguide grating (CWG) architecture. We mitigate off-chip radiation loss by enforcing the single beam condition ... -
Mapping the global design space of nanophotonic components using machine learning pattern recognition
(Springer Nature, 2019-10-21)Nanophotonics finds ever broadening applications requiring complex components with many parameters to be simultaneously designed. Recent methodologies employing optimization algorithms commonly focus on a single performance ... -
Metamaterial antenna array fed by distributed Bragg deflector for beam steering on SOI platform
Ginel-Moreno, Pablo; Hadij-El-Houati, Abdelfettah; Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (2023)
The capability to radiate collimated steerable beams of light is crucial for many applications, such as remote sensing and free-space optical communications. Here we experimentally demonstrate a novel 1D-antenna array ... -
Metamaterial antenna array fed by distributed Bragg deflector for SOI platform
Ginel-Moreno, Pablo; Hadij-El-Houati, Abdelfettah; Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (2022)
We propose a distributed Bragg deflector working as a low loss (<0.3 dB) ultra compact beam expander, which generates an on chip Gaussian beam that illuminates a 1D array of 112 optical antennas with a length of 1.5 mm . ... -
Metamaterial engineered C+L band 90º hybrid with 150 nm feature size
Hadij-El-Houati, Abdelfettah; Halir, Robert; Ortega-Moñux, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Podmore, Hugh; Schmid, Jens H.; Cheben, Pavel; Molina-Fernández, Íñigo[et al.] (2020-09-28)
90º hybrids are important components for coherent optical communications. Conventional implementations only cover the C band, while broadband, metamaterial-based devices require sub-100nm feature sizes. We propose a ... -
Millimeter-long metamaterial surface-emitting antenna in the silicon photonics platform
Ginel-Moreno, Pablo; Sánchez-Postigo, Alejandro; De-Oliva-Rubio, José; Hadij-ElHouati, Abdelfettah; Ye, Winnie N.; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (Optical Publishing Group, 2021-07-28)
Integrated optical antennas are key components for on-chip light detection and ranging technology (LIDAR). In order to achieve a highly collimated far field with reduced beam divergence, antenna lengths on the order of ... -
On-Chip Metamaterial Antenna Array with Distributed Bragg Deflector for Generation of Collimated Steerable Beams
Ginel-Moreno, Pablo; Hadij-El-Houati, Abdelfettah; Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (WILEY, 2022-07-03)
The generation of collimated steerable beams of light is a fundamental function in optics needed in many applications, including free-space optical communications, remote sensing, and light detection and ranging. Implementing ... -
Perfectly vertical surface grating couplers using subwavelength engineering for increased feature sizes.
Kamandar Dezfouli, Mohsen; Grinberg, Yuri; Melati, Daniele; Cheben, Pavel; Schmid, Jens H.; Sánchez-Postigo, Alejandro; Ortega-Moñux, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Cheriton, Ross; Janz, Siegfried; Xu, Dan-Xia; Schmid, Jens H.[et al.] (Optica, 2020-06-29)
We present perfectly vertical grating couplers for the 220 nm silicon-on-insulator platform incorporating subwavelength metamaterials to increase the minimum feature sizes and achieve broadband low back-reflection. Our ... -
Performance of Bragg grating assisted multi-band add-drop filters on the silicon-on-insulator platform.
Fernández-Hinestrosa, Alejandro; Luque-González, José Manuel; Cheben, Pavel; Schmid, Jens H.; Wang, Shurui; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Ortega-Moñux, Alejandro[et al.] (2024)
In this work, we designed multi-band add-drop filters based on Bragg grating assisted Mach-Zehnder interferometers for the LAN wavelength division multiplexing standard. We experimentally assessed their behaviors on the ... -
Polarization independent 2×2 multimode interference coupler with bricked subwavelength metamaterial
Pérez-Armenta, Carlos; Ortega-Moñux, Alejandro; Luque-González, José Manuel; Halir, Robert; Reyes Iglesias, Pedro José; Schmid, Jens H.; Cheben, Pavel; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo[et al.] (2022)
The silicon-on-insulator (SOI) platform enables high integration density in photonic integrated circuits while maintaining compatibility with CMOS fabrication processes. Nevertheless, its inherently high modal birefringence ...