Article
Optics
Yulu Qin, Boyu Ji, Xiaowei Song, Jingquan Lin
Summary: The plasmonic functional lens achieved wavelength-selective nano-focusing of SPPs via a nano-dichroic element, directing all SPP power of the matched wavelength inward for higher collecting efficiency and focusing intensity.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
D. Babonneau, S. Camelio, G. Abadias, D. Christofilos, J. Arvanitidis, S. Psilodimitrakopoulos, G. M. Maragkakis, E. Stratakis, N. Kalfagiannis, P. Patsalas
Summary: TiN and ZrN are emerging as important alternative plasmonic materials with potential applications as nonlinear optical materials, especially for second-harmonic generation (SHG). Highly directional dichroic nanostructures of TiN and ZrN can be grown by self-assembly using glancing angle deposition on periodic rippled dielectric surfaces, showing strong SHG response and exceptional photothermal durability due to the incorporation of point defects. These nanostructures, with strong SHG response associated with near-field enhancement from localized surface plasmon resonance, are expected to be applied in laser technology as optical components such as polarizers and SHG emitters.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Jose A. Jimenez
Summary: The impact of Cu nanoparticles with distinct plasmonic properties on the Nd3+ near-infrared emission in neodymium and copper co-doped phosphate glass was examined. It was found that the merely plasmonic glass consistently showed quenching of Nd3+ photoluminescence, while the dichroic glass exhibited enhanced near-infrared emission under excitation at 747 and 803 nm. However, the decay times of the Nd3+ 4F3/2 emitting state were similar to the melt-quenched precursor. Scattering effects from Cu nanoparticles are suggested to contribute to the enhancement of photoluminescence.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Yuncai Feng, Yang Zhao, Youwen Liu, Tianhui Qiu
Summary: We propose and investigate an ultra-compact graphene-based plasmonic device that allows flexible control of the propagation direction of surface plasmon polaritons (SPP) by changing the chemical potential of graphene. The device can be used to realize plasmonic devices with various functions, such as splitter and router, by manipulating the propagation direction of graphene SPP. The designed structure is essential for photonic integration systems, including nano scale multiplexers, multifunctional devices, and on-chip routing system.
RESULTS IN PHYSICS
(2022)
Article
Optics
D. Hernandez-Pinilla, N. Nogal, L. Sanchez-Garcia, S. Carretero-Palacios, K. de Oliveira Lima, A. Ferrier, P. Goldner, L. E. Bausa, M. O. Ramirez
Summary: We report the fabrication and optical characterization of a new hybrid material consisting of Nd3+ doped Y2O3 submicron particles associated with linear chains of plasmonic nanostructures. The interaction between the plasmonic modes of the chain with the fluorescent yttria submicron particles is analyzed, showing the capability of plasmonic chains to modulate the emission of fluorescent submicron particles.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Nan Yang, Jinbiao Xiao
Summary: A compact and broadband silicon-based TE-pass polarizer is achieved by introducing subwavelength gratings and hybrid plasmonic waveguides, which can support only the TE mode and achieve excellent extinction ratio and insertion loss performance.
Article
Chemistry, Physical
William L. Watkins, Antonio Assaf, Geoffroy Prevot, Yves Borensztein
Summary: The article introduces the development of plasmonic sensors using the localized surface plasmon resonance (LSPR) of metal nanoparticles, with two common measurement methods based on wavelength shift and signal intensity change of LSPR. By combining transmittance anisotropy spectroscopy with anisotropic gold films, the researchers achieved ultrahigh sensitivity to bulk refractive index sensing, displaying two different LSPR as a function of light polarization.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Optics
Rouchin Mahendra, Ramesh Chandra
Summary: Multispectral electro-optical/infrared payloads are being developed for various applications. Specialized optical filters are required to separate different spectral bands. This paper presents the design and simulation of two beam splitters with a 45-degree angle of incidence for separating visible to mid-wave infrared bands.
OPTICAL ENGINEERING
(2022)
Article
Polymer Science
Jose A. Jimenez
Summary: The impact of heat treatment on Pr3+-doped phosphate glass was investigated, and it was found that samples heat-treated for 40 and 60 minutes exhibited broad plasmonic bands and dichroism, while the near-infrared emission from Pr3+ was quenched to some extent.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Optics
Jose A. Jimenez, Sergiy Lysenko
Summary: The study reported the red emission of Eu3+ ions embedded in glasses containing copper with distinct plasmonic properties. Photoluminescence enhancement or quenching was observed depending on the dichroic nature of the nanocomposite. Characterizations using various techniques were conducted to understand the origin of the different optical properties.
APPLIED PHYSICS B-LASERS AND OPTICS
(2021)
Article
Optics
Hamed Pezeshki
Summary: This research presents ultra-compact and broadband integrated gold plasmonic half-wave and quarter-wave plates based on the mode interference mechanism. Numerical simulations demonstrate that the proposed waveplates have high polarization conversion efficiency and low insertion loss within specific wavelength ranges.
APPLIED PHYSICS B-LASERS AND OPTICS
(2022)
Article
Energy & Fuels
Warga Chegeno Meraje, Chang-chiun Huang, Masaki Ujihara, Chung-Feng Jeffrey Kuo
Summary: The study investigates the performance enhancement of plasmonic hybrid nanofluid spectral filtering PV/T system through dynamical modeling and practical validation, showing efficient heat transfer and maintaining PV module temperature. Outdoor evaluation demonstrates the system's ability to achieve high overall performance by using a hybrid nanofluid with selective sunlight absorption.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Optics
Jose A. Jimenez
Summary: The influence of plasmonic gold nanoparticles (NPs) on the photoluminescence (PL) of Sm3+ ions in barium-phosphate glass exhibiting dichroism has been investigated, emphasizing the dependence on excitation and emission wavelengths. The co-doped glass was analyzed by XRD, FT-IR, and optical spectroscopy techniques. The results showed that the PL of Sm3+ ions was enhanced in the presence of Au NPs, especially when the excitation energy transfer from Sm3+ to Au was less effective and the visible Sm3+ PL bands benefited from light scattering by plasmonic gold particles.
EUROPEAN PHYSICAL JOURNAL D
(2023)
Article
Nanoscience & Nanotechnology
Xiaobo He, Huatian Hu, Zhenyu Yang, Yangjian Cai, Wenqiang Wang, Zhanghua Han, Junjun Shi, Hongxing Xu
Summary: This article presents a method for the separated photodetection of multiple-wavelength surface plasmon polaritons (SPPs) using wavelength-dependent beam splitting technology. By utilizing a plasmonic crystal splitter and MSM photodetectors, independent electrical detection of SPPs with different wavelengths can be achieved.
Article
Multidisciplinary Sciences
Yuan Hung Lo, Jihan Zhou, Arjun Rana, Drew Morrill, Christian Gentry, Bjoern Enders, Young-Sang Yu, Chang-Yu Sun, David A. Shapiro, Roger W. Falcone, Henry C. Kapteyn, Margaret M. Murnane, Pupa U. P. A. Gilbert, Jianwei Miao
Summary: Biominerals such as seashells, coral skeletons, bone, and tooth enamel have unique nanoscale and microscale organization, providing inspiration for engineers to design new biomimetic structures. The combination of X-ray linear dichroic ptychography and 4D STEM can be a valuable multimodal tool for studying nano-crystallites, interfaces, nucleation, and mineral growth in optically anisotropic materials at multiple length scales.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
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
Bo Zhao, Jung-Hwan Song, Mark Brongersma, Shanhui Fan
Summary: This study demonstrates the potential of controlling coherent thermal emission with atomically thin emitters, showing that despite their small size, these emitters can achieve peak emissivity comparable to bulk thermal emitters. Several linear scaling laws for the radiative properties of atomic-scale systems have been identified, providing a pathway for controlling thermal radiation with atomic precision.
Article
Optics
Qitong Li, Tong Wu, Jorik van de Groep, Philippe Lalanne, Mark L. Brongersma
Summary: By controlling the radiative coupling between silicon nanowire pairs, a wide range of structural colors can be displayed. Additional eigenmodes originate from the radiative nature of low-Q resonators, resulting in nonlinear, frequency-dependent coupling strength. Tuning the Fabry-Perot modes across the entire visible frequency range is possible by varying the distance between two nanowires.
Article
Chemistry, Multidisciplinary
Koosha Nassiri Nazif, Aravindh Kumar, Jiho Hong, Nayeun Lee, Raisul Islam, Connor J. McClellan, Ouri Karni, Jorik van de Groep, Tony F. Heinz, Eric Pop, Mark L. Brongersma, Krishna C. Saraswat
Summary: Layered semiconducting transition metal dichalcogenides (TMDs) have excellent optoelectronic properties, but practical contacts to TMDs have poor charge carrier selectivity, leading to low open-circuit voltage (V-OC) and limited power conversion efficiency (PCE). A simple MoOx (x approximate to 3) surface charge-transfer doping and passivation method was applied to multilayer tungsten disulfide (WS2) solar cells to address these issues, resulting in lateral p-n junction photovoltaic cells with a record V-OC of 681 mV, the highest among all p-n junction TMD solar cells with a practical design, and leading to record PCE in ultrathin (<90 nm) WS2 photovoltaics.
Article
Nanoscience & Nanotechnology
Yifei Wang, Patrick Landreman, David Schoen, Kye Okabe, Ann Marshall, Umberto Celano, H. -S. Philip Wong, Junghyun Park, Mark L. Brongersma
Summary: The metasurface described in the passage combines electrically controlled heating units and a phase-change material to achieve more than fourfold modulation of reflectance. Phase-change materials with high refractive index allow for fast electrical switching and have been used to create compact optical antennas.
NATURE NANOTECHNOLOGY
(2021)
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
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.
Proceedings Paper
Engineering, Electrical & Electronic
Jorik van de Groep, Jung-Hwan Song, Qitong Li, Umberto Celano, Pieter G. Kik, Mark L. Brongersma
Summary: This study demonstrates precise and dynamic control over light scattering by exciton resonances in atomically-thin optical elements carved directly out of monolayer WS2. Through ion-liquid gating, the material's exciton resonance can be manipulated dynamically.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Anqi Ji, Jung-Hwan Song, Qitong Li, Pieter G. Kik, David A. B. Miller, Mark L. Brongersma
Summary: This study showcases the application of resonant flat optical elements as insertable angular filters for phase contrast imaging. Through high-accuracy direct angular filtering, quantitative phase contrast imaging is achieved similar to Fourier optics approaches.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)