Article
Engineering, Electrical & Electronic
Xavier X. Chia, Ju Won Choi, Xing Peng, Hongwei Gao, George Chen, Doris K. T. Ng, Dawn Tan
Summary: We propose micro-ring resonators (MRRs) with high intrinsic quality factors on a CMOS-compatible SRN:D platform. These MRRs have a linear refractive index of 2.52 at 1.55 μm and a Kerr nonlinearity 10 times higher than stoichiometric silicon nitride. Si-H bond absorption is eliminated in these devices. Low power stimulated Four-Wave Mixing (FWM) is achieved with pump powers as low as 0.5 mW, and cascaded FWM is observed with pump powers as low as 10 mW with a wide output spectrum spanning 42 nm.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Francisco J. Diaz-Fernandez, Javier Marti, Carlos Garcia-Meca
Summary: Invisibility cloaks are a significant development in the field of metamaterials. While most efforts have been focused on improving the effectiveness of cloaks, little attention has been paid to the development of efficient techniques for detecting invisibility devices. This study proposes a different approach using diffraction tomography to enhance efficiency in detecting and obtaining images of invisibility cloaks, leading to improved sensitivity and potential application in sound cloaks.
LASER & PHOTONICS REVIEWS
(2023)
Review
Physics, Multidisciplinary
Lorenzo Pavesi
Summary: Silicon Photonics, a technology proposed almost 30 years ago, has gone through several stages of development, from addressing the lack of a silicon laser to exploring novel features of photons in different systems, and then to exploring microring resonators and their applications in integrated photonic circuits, finally leading to the emergence of quantum photonic devices. These developments have brought widespread applications of silicon photonics in sensing, photovoltaics, and optical signal processing.
FRONTIERS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Ryotaro Konoike, Akio Yoshizawa, Shu Namiki, Kazuhiro Ikeda
Summary: We studied a 32 x 32 silicon photonic switch that can be used as a programmable multiport interferometer, with stability suitable for both classical and quantum photonic applications. The experimental results demonstrate that our optical circuit has a wide range of potential applications in classical and quantum photonic processors based on a multiport input-output interference design.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ahsan Noor, Muhammad Khalid, Federico De Luca, Henrikh M. Baghramyan, Michele Castriotta, Antonella D'Orazio, Cristian Ciraci
Summary: Plasmonic waveguides provide an integrated platform for the development of efficient nanoscale ultrafast photonic devices. In this study, a numerical calculation method is proposed to investigate nonlinear optical effects in waveguides with nonlocal response effects and surface nonlinearities. By studying the nonlinear response caused by the hydrodynamic description of free electrons in the waveguide metal constituents, local and nonlocal approximations are compared.
Article
Chemistry, Multidisciplinary
Siqi Yan, Jeremy Adcock, Yunhong Ding
Summary: This review focuses on the application of graphene in high-performance silicon photonic devices and discusses the future trends and challenges of silicon-graphene hybrid photonic devices.
APPLIED SCIENCES-BASEL
(2022)
Article
Computer Science, Information Systems
Yuxi Fang, Changjing Bao, Zhi Wang, Hao Zhang, Zhongqi Pan, Yang Yue
Summary: Flexibility of producing two dispersive waves in silicon nitride slot waveguides has been demonstrated, offering advantages for applications such as broadband spectrum extension and frequency conversion.
Article
Materials Science, Multidisciplinary
Zhuoran Fang, Jiajiu Zheng, Abhi Saxena, James Whitehead, Yueyang Chen, Arka Majumdar
Summary: This study experimentally demonstrated the strong optical phase modulation and low optical loss of Sb2S3 at wavelengths of 750 nm and 1550 nm, showcasing the thermal stability of the Sb2S3-Si hybrid platform and an electrically tunable Sb2S3 integrated non-volatile microring switch with a high-contrast transmission state over 30 dB.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Rongxiang Guo, Weicheng Chen, Haoran Gao, Yang Zhao, Tiegen Liu, Zhenzhou Cheng
Summary: This study proposes the feasibility of developing mid-infrared Ge-based Kerr frequency combs, and analyzes their physical properties and generation mechanisms by establishing a comprehensive model. The study also demonstrates the conditions for generating frequency combs at specific pump wavelengths. This research provides useful guidance for the development of mid-IR Kerr frequency combs using CMOS technology.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Khadijeh Miarabbas Kiani, Henry C. Frankis, Cameron M. Naraine, Dawson B. Bonneville, Andrew P. Knights, Jonathan D. B. Bradley
Summary: This research presents a new method for achieving optical gain and lasing on a silicon photonics platform, which allows for low-cost, high-volume manufacturing and co-integration with silicon devices.
LASER & PHOTONICS REVIEWS
(2022)
Editorial Material
Multidisciplinary Sciences
Nicholas Rivera
Summary: Shining a laser on an iron wire generates fast-moving electrons that amplify electromagnetic waves created by the light interacting with the wire. This method of generating laser-like light could be more effective than existing electron-based methods.
Article
Optics
Rebecka Sax, Alberto Boaron, Gianluca Boso, Simone Atzeni, Andrea Crespi, Fadri Grunenfelder, Davide Rusca, Aws Al-Saadi, Danilo Bronzi, Sebastian Kupijai, Hanjo Rhee, Roberto Osellame, Hugo Zbinden
Summary: Quantum key distribution (QKD) is a reliable method for generating secure secret keys at a distance, relying on the laws of quantum physics instead of computational complexity. To industrialize QKD, affordable and practical setups are needed, and the integration of photonic and electronic components is currently emphasized. This study presents an integrated QKD setup featuring a high-speed transmitter chip in silicon photonics and a low-loss receiver chip in aluminum borosilicate glass, achieving comparable performance to more complex setups based on discrete components.
PHOTONICS RESEARCH
(2023)
Article
Physics, Multidisciplinary
Hasan Yilmaz, Matthias Kuhmayer, Chia Wei Hsu, Stefan Rotter, Hui Cao
Summary: The memory effect in disordered systems has been customized by introducing an angular memory operator, with its eigenstates possessing perfect correlation for tilt angles and directions. This approach demonstrates the potential for creating any desired memory for classical and quantum waves in complex systems through wave front shaping.
Article
Nanoscience & Nanotechnology
Junwei Cheng, Wenkai Zhang, Wentao Gu, Hailong Zhou, Jianji Dong, Xinliang Zhang
Summary: Inverse design is widely used in high-performance integrated photonic device design, but current methods require computational simulations or time-consuming model training. This study proposes an efficient inverse design strategy, using light propagation instead of electromagnetic simulation. Experimental results demonstrate the effectiveness and applicability of this strategy.
Article
Optics
Kejian Zhu, Pengfei Sun, Pengfei Xu, Xingpeng Liu, Tangyou Sun, Haiou Li, Zhiping Zhou
Summary: Nano-focusing structures based on hybrid plasmonic waveguides have the potential to be used in strong nonlinear optical devices. Despite the significant insertion loss, careful optimization of device parameters and reducing the footprint can lead to a considerable nonlinear phase shift. This study analyzes the Kerr effect in hybrid plasmonic waveguides by examining the mode effective area, energy velocity, and insertion loss, and provides insights for optimizing these waveguides for nonlinear applications.
CHINESE OPTICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Junghyun Park, Byung Gil Jeong, Sun Il Kim, Duhyun Lee, Jungwoo Kim, Changgyun Shin, Chang Bum Lee, Tatsuhiro Otsuka, Jisoo Kyoung, Sangwook Kim, Ki-Yeon Yang, Yong-Young Park, Jisan Lee, Inoh Hwang, Jaeduck Jang, Seok Ho Song, Mark L. Brongersma, Kyoungho Ha, Sung-Woo Hwang, Hyuck Choo, Byoung Lyong Choi
Summary: Spatial light modulators are essential for regulating the amplitude, phase, and polarization of light, while static and active metasurfaces serve as alternatives for miniaturized optical components. A new all-solid-state, electrically tunable, and reflective metasurface array has been developed to generate specific or continuous phase modulation with independent amplitude adjustment. This design includes individually addressable nanoresonators with two independent control parameters for adjusting the reflection coefficient in each nanoresonator.
NATURE NANOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Jung-Hwan Song, Soren Raza, Jorik van de Groep, Ju-Hyung Kang, Qitong Li, Pieter G. Kik, Mark L. Brongersma
Summary: Researchers constructed a nanoelectromechanical system that utilizes unique behavior between sub-nanometer plasmonic nanoparticles to create an electro-optical modulator, with a very large mechanical tunability observed at nanometer gap spacing.
NATURE COMMUNICATIONS
(2021)
Editorial Material
Nanoscience & Nanotechnology
Mark L. Brongersma
Summary: The development of flat optics has brought new opportunities beyond replacing conventional optical elements, with exciting prospects in various fields such as computational imaging, quantum communications, and novel display technologies. Additionally, the progress in two-dimensional quantum materials seems promising for the advancement of high-performance flat optics.
Article
Nanoscience & Nanotechnology
Nayeun Lee, Reehyang Kim, Ju Young Kim, Jong Beom Ko, Sang-Hee Ko Park, Sang Ouk Kim, Mark L. Brongersma, Jonghwa Shin
Summary: Concentration of electromagnetic waves in deep-subwavelength volumes for enhancing light-matter interactions has been widely researched. A uniform array of ultrasmall plasmonic resonators, called nano-lotus pods, has been developed for visible light confinement without traditional lithography techniques, demonstrating potential for surface-enhanced Raman spectroscopy.
Article
Nanoscience & Nanotechnology
Artyom Assadillayev, Tatsuki Hinamoto, Minoru Fujii, Hiroshi Sugimoto, Mark L. Brongersma, Soren Raza
Summary: Resonant optical nanomaterials, such as silicon, can manipulate highly confined guided waves in the form of surface plasmon polaritons (SPPs) on a subwavelength scale. It has been demonstrated that SPPs in ultrathin metal films can be efficiently launched due to the strong coupling between the Mie resonances of the nanoparticle and the SPP modes. By varying the particle size, the SPP excitation wavelength can be tuned across the entire near-infrared spectrum. Our results suggest that silicon nanoparticles may serve as scatterers of the SPPs supported by the film, paving the way for using high-refractive-index dielectric nanoantennas as compact elements for manipulating highly confined SPPs.
Editorial Material
Nanoscience & Nanotechnology
Javier Aizpurua, Harry A. Atwater, Jeremy J. Baumberg, Sergei I. Bozhevolnyi, Mark L. Brongersma, Jennifer A. Dionne, Harald Giessen, Naomi Halas, Yuri Kivshar, Matthias F. Kling, Ferenc Krausz, Stefan Maier, Sergey V. Makarov, Maiken Mikkelsen, Martin Moskovits, Peter Norlander, Teri Odom, Albert Polman, Cheng Wei Qiu, Mordechai Segev, Vladimir M. Shalaev, Paivi Torma, Din Ping Tsai, Ewold Verhagen, Anatoly Zayats, Xiang Zhang, Nikolay I. Zheludev
Summary: Mark Stockman was a founding member and evangelist in the field of plasmonics, known for his influential and creative contributions to the science of light.
Article
Optics
Carlo Gigli, Qitong Li, Pierre Chavel, Giuseppe Leo, Mark L. Brongersma, Philippe Lalanne
Summary: Optical dielectric metasurfaces composed of arrayed nanostructures allow for arbitrary spatial control of incident wavefronts with subwavelength resolution. Two physical effects are typically used for phase modulation, with one requiring high aspect ratios and the other being flatter and easier to manufacture. By comparing the two approaches, fundamental limitations of the latter method are identified, such as symmetry breaking.
LASER & PHOTONICS REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Jung-Hwan Song, Jorik van de Groep, Soo Jin Kim, Mark L. Brongersma
Summary: The article discusses high-Q, non-local metasurfaces with independent functions across different wavelength bands, and how this technology can be used for flat optical elements in eye tracking applications.
NATURE NANOTECHNOLOGY
(2021)
News Item
Optics
Paul V. Braun, Mark L. Brongersma
Summary: A two-step absorption process has enabled nanoscale 3D printing using a low-cost, low-power continuous-wave laser diode, potentially leading to significant cost reductions in 3D nanoprinting after 20 years of relying on expensive pulsed lasers for two-photon absorption.
Article
Multidisciplinary Sciences
Koosha Nassiri Nazif, Alwin Daus, Jiho Hong, Nayeun Lee, Sam Vaziri, Aravindh Kumar, Frederick Nitta, Michelle E. Chen, Siavash Kananian, Raisul Islam, Kwan-Ho Kim, Jin-Hong Park, Ada S. Y. Poon, Mark L. Brongersma, Eric Pop, Krishna C. Saraswat
Summary: The authors demonstrated the first flexible high power-per-weight TMD solar cells with record power conversion efficiency by addressing fundamental issues such as Fermi-level pinning, traditional doping schemes, and contamination during fabrication. By utilizing transparent graphene contacts, MoOx capping, and a non-damaging direct transfer method, they achieved a PCE of 5.1% and specific power of 4.4 W g(-1), projecting TMD solar cells to reach up to 46 W g(-1) specific power and creating new opportunities in various industries.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Burak Aslan, Colin Yule, Yifei Yu, Yan Joe Lee, Tony F. Heinz, Linyou Cao, Mark L. Brongersma
Summary: In this study, we investigate the exciton physics and tunability of suspended atomically thin WSe2. We find that the elimination of dielectric environment leads to a stronger electron-hole interaction and increased exciton binding energy in suspended monolayer WSe2. We also demonstrate the tunability of excitons in suspended samples through mechanical strain, resulting in a redshift in the exciton resonance and suppression of intervalley exciton-phonon scattering. These findings highlight the use of suspended 2D materials for fundamental studies and dynamic tuning of their optical properties.
Article
Nanoscience & Nanotechnology
Hiroto Shinomiya, Hiroshi Sugimoto, Tatsuki Hinamoto, Yan Joe Lee, Mark L. Brongersma, Minoru Fujii
Summary: Optical antennas play an important role in controlling photonic environments and enhancing light emission from two-dimensional transition-metal dichalcogenides. Dielectric nanoantennas with multipolar Mie resonances offer unique advantages for simultaneous enhancement of absorption and emission processes. In this study, a double resonance nanoantenna composed of a crystalline silicon nanoparticle is used to modify the photoluminescence behavior of monolayer MoS2. The coupling of the excitation process to the magnetic quadrupole resonance and the emission process to the magnetic dipole resonance results in significant modification of the spectral shape and enhancement of the photoluminescence intensity.
Article
Nanoscience & Nanotechnology
Qitong Li, Jorik van de Groep, Adam K. White, Jung-Hwan Song, Scott A. Longwell, Polly M. Fordyce, Stephen R. Quake, Pieter G. Kik, Mark L. Brongersma
Summary: This article introduces a metasurface optofluidic platform that allows for dynamic control of light fields' intensity and spectral properties. By combining optofluidics and metasurface optics, new platforms for light field control are created. The researchers designed highly sensitive metasurface building blocks and used them to create flat optics inside microfluidic channels, manipulating the optical behavior by controlling the refractive index of the liquids. The results demonstrate the ability to tune the intensity and spectral properties of metasurface color pixels and the platform's automated control capability.
NATURE NANOTECHNOLOGY
(2022)
Editorial Material
Multidisciplinary Sciences
Won-Jae Joo, Mark L. Brongersma
Article
Optics
Jiho Hong, Jorik Van De Groep, Nayeun Lee, Soo Jin Kim, Philippe Lalanne, Pieter G. Kik, Mark L. Brongersma
Summary: Modern sensing and imaging applications require accurate measurements of light wave properties such as intensity, wavelength, directionality, and polarization. This study demonstrates the use of engineered optical resonances in nanostructures to achieve selective detection of circularly polarized light. By patterning a thin silicon layer into a dislocated nanowire-array, it is possible to detect circularly polarized light with high efficiency. The presence of periodic dislocations enables selective excitation of nonlocal, guided-mode resonances for one handedness of light.