Article
|
Open Access
Featured
-
-
Article
| Open AccessCavity-coupled telecom atomic source in silicon
T centers in silicon are promising candidates for quantum applications yet suffer from weak optical transitions. Here, by integrating with a silicon nanocavity, the authors demonstrate an enhancement of the photon emission rate for a single T center.
- Adam Johnston
- , Ulises Felix-Rendon
- & Songtao Chen
-
Article
| Open AccessUltra-compact exciton polariton modulator based on van der Waals semiconductors
Miniaturized and efficient optical modulators are desired for data transmission, processing and communication. Here, the authors report the fabrication of exciton-polariton Mach–Zehnder modulators based on thin WS2 waveguides with a footprint of ~30 μm², modulation ratio up to −6.20 dB and nanosecond response times.
- Seong Won Lee
- , Jong Seok Lee
- & Su-Hyun Gong
-
Article
| Open AccessTime-of-flight detection of terahertz phonon-polariton
Polaritons, light-matter hybridized quasiparticles, are the fundamental excitation of strong coupling systems and are widely applicable in information technologies. Here the authors applied the concept of time-of-flight measurement in terahertz induced second harmonic generation experiments in various systems to comprehensively study the dispersion relation of phonon-polaritons and reveal potential spin-lattice couplings.
- Tianchuang Luo
- , Batyr Ilyas
- & Nuh Gedik
-
Article
| Open AccessRoom-temperature strong coupling in a single-photon emitter-metasurface system
Interfacing single-photon emitters (SPEs) with high-finesse cavities can prevent decoherence processes, especially at elevated temperature, but its implementation remains challenging. Here, the authors report room-temperature strong coupling of SPEs in hexagonal boron nitride with a dielectric cavity based on bound states in the continuum, showing a Rabi splitting of ~ 4 meV.
- T. Thu Ha Do
- , Milad Nonahal
- & Son Tung Ha
-
Article
| Open AccessBroadband angular spectrum differentiation using dielectric metasurfaces
Metasurfaces processing incoming images have been proposed in the context of real space operations. Here, the authors demonstrate mathematical operations, such as differentiation, on the angular spectrum of an image using metasurfaces, which can be used to enhance spectral features of an image.
- Ming Deng
- , Michele Cotrufo
- & Lin Chen
-
Article
| Open AccessRetinal photoisomerization versus counterion protonation in light and dark-adapted bacteriorhodopsin and its primary photoproduct
Malakar et al. investigate the photochemical dynamics in the isomerization of bacteriorhodopsin light and dark-adapted forms and in the first photocycle intermediate, K. The results prompt a reevaluation of the counter ion model, revealing that a different protonation then that shown in the classic quadrupole so far considered must be employed to account for the experimental data.
- Partha Malakar
- , Samira Gholami
- & Sanford Ruhman
-
Comment
| Open AccessBerkSEL: A scale-invariant laser beyond the Schawlow-Townes two-mirror strategy
I argue that a surface emitting laser that remains single mode irrespective of its size, a scale-invariant laser, should of necessity also waste light at the edge. This is a fundamental departure from the Schawlow-Townes two-mirror strategy that keeps light away from mirrors and edges to preserve gain and minimize loss. The strategy was implemented in the recent discovery of the Berkeley Surface Emitting Laser (BerkSEL).
- Boubacar Kanté
-
Article
| Open AccessSpectral-temporal-spatial customization via modulating multimodal nonlinear pulse propagation
The authors introduce a method for modulating the multimodal nonlinear pulse propagation in fibers by controlled bending, achieving a tunable broadband high-peak-power femtosecond light source that could empower nonlinear imaging and spectroscopy.
- Tong Qiu
- , Honghao Cao
- & Sixian You
-
Article
| Open AccessWandering principal optical axes in van der Waals triclinic materials
Principal optical axes define light-matter interactions in crystals and they are usually assumed to be stationary. Here, the authors report the observation of wavelength-dependent principal optical axes in ternary van der Waals crystals (ReS2 and ReSe2), leading to wavelength-switchable propagation directions of their waveguide modes.
- Georgy A. Ermolaev
- , Kirill V. Voronin
- & Kostya S. Novoselov
-
Article
| Open AccessOptically addressable spin defects coupled to bound states in the continuum metasurfaces
Previous research reported enhanced emission from spin defects in hBN by coupling to optical resonators; however, this approach has limited scalability. Here the authors use a monolithic metasurface featuring quasi bound states fabricated from hBN to enhance photoemission and optical spin-readout efficiency of defects in the same material.
- Luca Sortino
- , Angus Gale
- & Andreas Tittl
-
Article
| Open AccessNon-Hermitian non-equipartition theory for trapped particles
The authors propose a generalization of the equipartition theorem of thermal physics to account for non-Hermitian trapping forces, relevant for the problems in non-equilibrium open systems and advanced nanotechnology.
- Xiao Li
- , Yongyin Cao
- & Jack Ng
-
Article
| Open AccessProbing molecules in gas cells of subwavelength thickness with high frequency resolution
Using gas cells for spectroscopic studies opens possibility for miniaturized platforms that can be integrated with other optical components. Here the authors demonstrate molecular rovibrational spectroscopy by confining molecules in a cell of subwavelength thickness.
- Guadalupe Garcia Arellano
- , Joao Carlos de Aquino Carvalho
- & Athanasios Laliotis
-
Article
| Open AccessCoherent control of enhanced second-harmonic generation in a plasmonic nanocircuit using a transition metal dichalcogenide monolayer
Here, the authors integrate monolayer MoSe2 with a plasmonic nanocircuit and demonstrate the coherent selective routing of the enhanced nonlinear optical signal emitted by the 2D semiconductor, with routing extinction ratios up to 14.86 dB.
- Pei-Yuan Wu
- , Wei-Qing Lee
- & Chen-Bin Huang
-
Article
| Open AccessElectron/infrared-phonon coupling in ABC trilayer graphene
Via Raman and infrared spectroscopy measurements, X. Zan et al. find that rhombohedral ABC trilayer graphene has stronger electron/infrared-phonon coupling than Bernal ABA trilayer graphene.
- Xiaozhou Zan
- , Xiangdong Guo
- & Guangyu Zhang
-
Article
| Open AccessMode-multiplexing deep-strong light-matter coupling
The authors show an original approach to achieve strong light-matter interaction harnessing the coupling between plasmonic resonators and the Landau resonances of an underlying quantum well, demonstrating remarkably high coupling strengths.
- Joshua Mornhinweg
- , Laura Katharina Diebel
- & Christoph Lange
-
Article
| Open AccessLight-induced switching between singlet and triplet superconducting states
S. Gassner et al. propose using light pulses to drive a centrosymmetric s-wave superconductor with strong spin-orbit coupling into a metastable triplet p-wave superconductor with non-trivial topology. The two superconducting orders must be closely competing in equilibrium and the light pulse must break a generalized, dynamic form of inversion symmetry.
- Steven Gassner
- , Clara S. Weber
- & Martin Claassen
-
Article
| Open AccessReconfigurable perovskite X-ray detector for intelligent imaging
In-sensor computing requires detectors with polarity reconfigurability and linear responsivity. Pang et al. report a CsPbBr3 perovskite single crystal X-ray detector for edge extraction imaging with a data compression ratio of 46.4% and classification task with an accuracy of 100%.
- Jincong Pang
- , Haodi Wu
- & Guangda Niu
-
Article
| Open AccessEnergy transfer driven brightening of MoS2 by ultrafast polariton relaxation in microcavity MoS2/hBN/WS2 heterostructures
Here, the authors design a microcavity-confined 2D heterojunction to realize the strong coupling among donor exciton, acceptor exciton, and cavity photon mode, leading to an unconventional energy transfer via polariton relaxation with an enhancement factor of ~440.
- Zehua Hu
- , Tanjung Krisnanda
- & Qihua Xiong
-
Article
| Open AccessStrong interactions between solitons and background light in Brillouin-Kerr microcombs
Here the authors demonstrate a strong interaction between the generated solitons and background light in a Brillouin-Kerr microcomb system. Based on this unique physical mechanism, they achieve a monostable single soliton microcomb and a turnkey single-soliton microcomb without employing any optical/electrical control or feedback.
- Menghua Zhang
- , Shulin Ding
- & Xiaoshun Jiang
-
Article
| Open AccessNonlinear spin-orbit coupling in optical thin films
Spin-orbit interaction, and the associated phenomena, is commonly observed in crystalline structure pumped with circularly polarised beam. Here, the authors showed that this is not the case, and used nonlinear thin film to produce vortex beams of second-harmonic light.
- Domenico de Ceglia
- , Laure Coudrat
- & Costantino De Angelis
-
Article
| Open AccessSwept coded aperture real-time femtophotography
The researchers showcase swept-coded aperture real-time femtophotography—an all-optical single-shot computational imaging modality at up to 156.3 trillion frames per second—video-records transient absorption in a semiconductor and ultrafast demagnetization of a metal alloy.
- Jingdan Liu
- , Miguel Marquez
- & Jinyang Liang
-
Article
| Open AccessRealization of all-band-flat photonic lattices
Here the authors experimentally realized a systematic approach to synthesize arbitrary-size two-dimensional all-band-flat photonic lattices, which pave a route for investigating flat-band related physics such as slow-light, nonlinear breathing, and dispersionless image transmission.
- Jing Yang
- , Yuanzhen Li
- & Fei Gao
-
Article
| Open AccessIntegrated microcavity electric field sensors using Pound-Drever-Hall detection
Here the authors develop a chip-scale thin-film lithium niobate microcavity electric field sensor enabling real-time amplitude and phase measurements of various electric field waveforms.
- Xinyu Ma
- , Zhaoyu Cai
- & Rong Zeng
-
Article
| Open AccessNonlinear topological symmetry protection in a dissipative system
Applications of spontaneous symmetry breaking are hindered by unavoidable imperfections. Here, the authors reveal how a phase defect provides topological robustness to this process, enabling a bias free realization without fine tuning of parameters.
- Stéphane Coen
- , Bruno Garbin
- & Julien Fatome
-
Article
| Open AccessIntrinsic dichroism in amorphous and crystalline solids with helical light
Differential absorption of polarized light, called dichroism, does not exist in amorphous solids due to the disordered arrangements of atoms. Here, the authors demonstrate that dichroism is intrinsic to all solids and can be controlled using helical light beams carrying orbital angular momentum.
- Ashish Jain
- , Jean-Luc Bégin
- & Ravi Bhardwaj
-
Article
| Open AccessGiant electric field-induced second harmonic generation in polar skyrmions
Electric modulation of second harmonic generation finds applications in integrated photonics. Here, authors introduce electric field-induced second harmonic generation by polar skyrmions in PbTiO3/SrTiO3 superlattices with giant modulation depth.
- Sixu Wang
- , Wei Li
- & Qian Li
-
Article
| Open AccessReal-time tracking of coherent oscillations of electrons in a nanodevice by photo-assisted tunnelling
The authors demonstrate that the collective electron oscillations driven by light in a quantum nanodevice can be measured directly in the time domain, by recording the photo-assisted tunnelling currents using the technique of homodyne beating.
- Yang Luo
- , Frank Neubrech
- & Manish Garg
-
Article
| Open AccessOptical Tellegen metamaterial with spontaneous magnetization
Here the authors propose an isotropic three-dimensional metamaterial with nonreciprocal magnetoelectric resonant responses at visible and mid-infrared frequencies. The proposed metamaterials do not require external magnetization.
- Shadi Safaei Jazi
- , Ihar Faniayeu
- & Viktar Asadchy
-
Article
| Open AccessStatistics of modal condensation in nonlinear multimode fibers
The authors investigate light beam propagation in multimode optical fibers, considering linear random mode coupling and Kerr nonlinearity. They utilize a 3D mode decomposition technique, enabling them to accurately characterize modal distributions over extended lengths of graded-index fiber.
- Mario Zitelli
- , Fabio Mangini
- & Stefan Wabnitz
-
Article
| Open AccessUltracompact mirror device for forming 20-nm achromatic soft-X-ray focus toward multimodal and multicolor nanoanalyses
Optics used for X-ray focusing suffer from wavelength dependent effects like chromatic aberration. Here the authors demonstrate fabrication of a ultracompact Kirkpatrick-Baez mirror and use it for achromatic focusing to 20 nm spot for the soft X-ray at 2-keV photon energy.
- Takenori Shimamura
- , Yoko Takeo
- & Hidekazu Mimura
-
Article
| Open AccessLinear and phase controllable terahertz frequency conversion via ultrafast breaking the bond of a meta-molecule
The time-varying metasurfaces show promise for exploring exotic physics and photonic applications. The authors introduce a time-varying metasurface with superconductor-metal hybrid meta-molecules, demonstrating phase-controllable frequency conversion with high efficiency.
- Siyu Duan
- , Xin Su
- & Peiheng Wu
-
Article
| Open AccessLogical rotation of non-separable states via uniformly self-assembled chiral superstructures
The logical rotation of non-separable states with a large tunable range is demonstrated by the uniformly self-assembled chiral superstructures, which enables a set of logic gates, proof-of-principle logic network, and angular motion tracking.
- Yi-Heng Zhang
- , Si-Jia Liu
- & Yan-Qing Lu
-
Comment
| Open AccessTopological photonics: robustness and beyond
Synthetic optical materials have been recently employed as a powerful platform for the emulation of topological phenomena in wave physics. Topological phases offer exciting opportunities, not only for fundamental physics demonstrations, but also for practical technologies. Yet, their impact has so far been primarily limited to their claimed enhanced robustness. Here, we clarify the role of robustness in topological photonic systems, and we discuss how topological photonics may offer a wider range of important opportunities in science and for practical technologies, discussing emergent and exciting research directions.
- Alexander B. Khanikaev
- & Andrea Alù
-
Article
| Open AccessFloquet parity-time symmetry in integrated photonics
Here the authors unveil an approach rooted in non-Hermitian physics to precisely control light amplification in an integrated photonic platform, paving the way for innovative on-chip functionalities, like coherent control of light amplification and routing.
- Weijie Liu
- , Quancheng Liu
- & Feng Chen
-
Article
| Open AccessSlow light topological photonics with counter-propagating waves and its active control on a chip
Topological slow light is of fundamental importance for science and technology. Here the authors reveal that the presence of magnetic phase vortices along with glide symmetric interfaces is crucial for the existence of slow light modes in topological valley photonic crystal waveguide.
- Abhishek Kumar
- , Yi Ji Tan
- & Ranjan Singh
-
Article
| Open AccessSwitchable unidirectional emissions from hydrogel gratings with integrated carbon quantum dots
Directional emission of photoluminescence is an emerging technique for light-emitting fields and nanophotonics. Here, the authors demonstrate a hydrogel grating with integrated quantum dots for switchable unidirectional emission tuning.
- Chenjie Dai
- , Shuai Wan
- & Zhongyang Li
-
Article
| Open AccessThermo-optic epsilon-near-zero effects
Nonlinear epsilon-near-zero nanodevices are attractive solutions for large-scale integrated system-on-chips yet heat genearation upon operation affects their performance. Here, the authors studied the linear and nonlinear thermo-optic effects in the indium tin oxide, commonly used material for this system.
- Jiaye Wu
- , Marco Clementi
- & Camille-Sophie Brès
-
Article
| Open AccessChirality manipulation of ultrafast phase switches in a correlated CDW-Weyl semimetal
The charge-density-wave Weyl semimetal (TaSe4)2I is a candidate for an axion insulator, however it may be obscured by polaron physics. Here, using ultrafast terahertz photocurrent spectroscopy, the authors realize phase switches from the polaronic state, to the charge density wave phase, and to the Weyl phase.
- Bing Cheng
- , Di Cheng
- & Jigang Wang
-
Article
| Open AccessManipulating hyperbolic transient plasmons in a layered semiconductor
Here, the authors report the generation and manipulation of transient hyperbolic plasmons in black phosphorus via ultrafast photocarrier injection, demonstrating a topological transition of the non-equilibrium iso-frequency contours and the coexistence of different transient plasmonic modes.
- Rao Fu
- , Yusong Qu
- & Jianing Chen
-
Article
| Open AccessProgrammable integrated photonics for topological Hamiltonians
Topological photonics could impact the scalability of integrated photonics, but it has shown limited reconfigurability to date. Here, the authors demonstrate reprogrammable integrated photonics as a nearly universal platform for topological models.
- Mehmet Berkay On
- , Farshid Ashtiani
- & Andrea Blanco-Redondo
-
Article
| Open AccessHigh crosstalk suppression in InGaAs/InP single-photon avalanche diode arrays by carrier extraction structure
Opticalelectrical crosstalk, rather than optical crosstalk, is the primary issue in InGaAs/InP single-photon avalanche diode arrays. Here, Tang et al. propose a carrier-extraction structures to replace the trenching method, effectively reducing crosstalk and maintaining device reliability.
- Yongsheng Tang
- , Rui Wang
- & Meng Zhao
-
Article
| Open AccessPhotonic Stochastic Emergent Storage for deep classification by scattering-intrinsic patterns
Photonic Stochastic Emergent Storage is a neuromorphic photonic device for image storage and classification based on scattering-intrinsic patterns. Here, the authors show emergent storage employs stochastic prototype scattering-induced light patterns to generate categories corresponding to emergent archetypes.
- Marco Leonetti
- , Giorgio Gosti
- & Giancarlo Ruocco
-
Article
| Open AccessGiant intrinsic photovoltaic effect in one-dimensional van der Waals grain boundaries
The intrinsic photovoltaic effect (IPVE) in noncentrosymmetric materials has the potential to overcome the limitations of traditional photovoltaic devices. Here, the authors report the observation of a strong and gate-tunable IPVE in 1D grain boundaries of a van der Waals semiconductor, ReS2.
- Yongheng Zhou
- , Xin Zhou
- & Xiaolong Chen
-
Article
| Open AccessDistributed quantum sensing of multiple phases with fewer photons
Enhanced sensitivity is a key parameter in quantum metrology. Here the authors demonstrate a distributed quantum phase sensing method that uses fewer photons than the number of parameters needed, and an enhanced quantum sensitivity is achieved.
- Dong-Hyun Kim
- , Seongjin Hong
- & Hyang-Tag Lim
-
Article
| Open AccessScalable nano-architecture for stable near-blackbody solar absorption at high temperatures
Nanostructures are generally unstable above 850 °C in air, limiting their use in high-temperature solar thermal applications. Here, a scalable ceramic nano-architecture layer can significantly enhance and stabilise the absorption of an arbitrary solar absorber.
- Yifan Guo
- , Kaoru Tsuda
- & Juan F. Torres
-
Article
| Open AccessCreating pairs of exceptional points for arbitrary polarization control: asymmetric vectorial wavefront modulation
The authors report the chiral inversion of exceptional points (EPs) through a structural mirror-symmetric operation, extending the application of EP to any desired polarization states, surpassing the inherent limitation of conventional EP systems.
- Zijin Yang
- , Po-Sheng Huang
- & Qinghua Song
-
Article
| Open AccessDirect laser-written optomechanical membranes in fiber Fabry-Perot cavities
Authors showcase 3D direct laser writing to fabricate optically interfaced mechanical resonators. The membrane-type structures are placed inside fiber Fabry-Perot cavities to realize a miniaturized optical cavity. Further, the optomechanical properties reveal the coupling mechanism and a significant tuning of the mechanical resonator frequency.
- Lukas Tenbrake
- , Alexander Faßbender
- & Hannes Pfeifer
-
Article
| Open AccessElectrical tuning of branched flow of light
Here the authors experimentally realize the electrical tuning of branched flow of light in nematic liquid crystals. The statistical properties and the polarization effect of the branched flow of light in the film are systematically studied adding fundamental insights on branched flow of light.
- Shan-shan Chang
- , Ke-Hui Wu
- & Jin-hui Chen
-
Article
| Open AccessRealization of a crosstalk-avoided quantum network node using dual-type qubits of the same ion species
In ion-photon quantum network platforms, usually memory qubits and communication qubits are encoded in ions of different species. Here, instead, the authors show how to realise ion-photon entanglement within the same-species-dual-encoding scheme.
- L. Feng
- , Y.-Y. Huang
- & L.-M. Duan
Browse broader subjects
Browse narrower subjects
- Atom optics
- High-harmonic generation
- Magneto-optics
- Micro-optics
- Nanophotonics and plasmonics
- Nonlinear optics
- Polaritons
- Quantum optics
- Single photons and quantum effects
- Slow light
- Solitons
- Sub-wavelength optics
- Supercontinuum generation
- Terahertz optics
- Transformation optics
- Ultrafast photonics
- X-rays