Featured
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Letter |
Three-dimensional nonlinear photonic crystal in ferroelectric barium calcium titanate
A three-dimensional nonlinear photonic crystal in ferroelectric barium calcium titanate that enables phase matching of nonlinear processes along an arbitrary direction, thereby removing constraints imposed by low-dimensional structures, is experimentally realized.
- Tianxiang Xu
- , Krzysztof Switkowski
- & Wieslaw Krolikowski
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Letter |
Giant optical anisotropy in a quasi-one-dimensional crystal
Highly crystalline BaTiS3 has been shown to exhibit record-breaking birefringence of 0.76 in the wavelength range of 7–16 μm. The large anisotropy is a result of its quasi-one-dimensional structure.
- Shanyuan Niu
- , Graham Joe
- & Jayakanth Ravichandran
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Letter |
Experimental observation of a polarization vortex at an optical bound state in the continuum
Previous predictions that light radiated by modes around a bound state in the continuum (BIC) condition should exhibit a vortex in the far-field polarization profile are experimentally confirmed. The findings shed light on the origin of BICs.
- Hugo M. Doeleman
- , Francesco Monticone
- & A. Femius Koenderink
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News & Views |
Locking the waveform with a quartz crystal
High-order harmonics in the extreme-ultraviolet regime can be produced and a stable waveform-locked attosecond pulse can be formed when quartz is excited by a strong short-pulsed laser, providing a robust path towards attosecond photonics.
- Shambhu Ghimire
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Article |
Enrichment of molecular antenna triplets amplifies upconverting nanoparticle emission
Lanthanide-doped upconverting nanoparticles exhibiting a 33,000 times increase in brightness and a 100 times increase in efficiency over bare upconverting nanoparticles are demonstrated. The findings are relevant in fields from solar energy to biophotonics.
- David J. Garfield
- , Nicholas J. Borys
- & P. James Schuck
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News & Views |
Giant multiphoton absorption in silicon
With the availability of high-intensity terahertz free-electron lasers, surprisingly large multiphoton absorptions in a phosphorus atom doped in a silicon crystal have been obtained, providing the possibility of a hydrogen-like system in silicon photonics and quantum information devices.
- Nobuhiko Yokoshi
- & Hajime Ishihara
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Letter |
Large magneto-optical Kerr effect and imaging of magnetic octupole domains in an antiferromagnetic metal
The magneto-optical Kerr effect is demonstrated in an antiferromagnetic metal. Large rotation angles, magnetic octupole domain imaging was enabled.
- Tomoya Higo
- , Huiyuan Man
- & Satoru Nakatsuji
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Article |
Active tuning of surface phonon polariton resonances via carrier photoinjection
Infrared surface phonon polariton tuning is achieved by photoinjecting free carriers into resonators.
- Adam D. Dunkelberger
- , Chase T. Ellis
- & Joshua D. Caldwell
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Letter |
Continuous-wave lasing in an organic–inorganic lead halide perovskite semiconductor
Optically pumped continuous-wave lasing is achieved in methylammonium lead iodide (MAPbI3) distributed feedback lasers that are maintained below the MAPbI3 tetragonal-to-orthorhombic phase transition temperature of 160 K.
- Yufei Jia
- , Ross A. Kerner
- & Noel C. Giebink
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Review Article |
Phase-change materials for non-volatile photonic applications
Materials whose optical properties can be reconfigured are crucial for photonic applications such as optical memories. Phase-change materials offer such utility and here recent progress is reviewed.
- M. Wuttig
- , H. Bhaskaran
- & T. Taubner
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Letter |
Efficient low-loss InGaAsP/Si hybrid MOS optical modulator
Hybrid InGaAsP/Si optical modulator gives silicon photonics an efficient scheme for phase modulation.
- Jae-Hoon Han
- , Frederic Boeuf
- & Mitsuru Takenaka
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News & Views |
A new bandgap tuning knob
An external 'tuning knob' by means of applying a transverse electric field has been experimentally demonstrated to modify the bandgap of black phosphorus, making the two-dimensional material practical for integration in functional nanodevices.
- Rafael Roldán
- & Andres Castellanos-Gomez
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Letter |
Electrical 2π phase control of infrared light in a 350-nm footprint using graphene plasmons
Phase velocity of graphene plasmons is electrically controlled in a set-up enabling tuning of the phase between 0 and 2π.
- Achim Woessner
- , Yuanda Gao
- & Frank H. L. Koppens
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Article |
Valley-polarized exciton–polaritons in a monolayer semiconductor
Exploitation of the valley electronic structure of transition metal dichalcogenides with exciton–polaritons is an elusive challenge. Now, valley-polarized exciton–polaritons in monolayers of MoS2 have been demonstrated.
- Yen-Jung Chen
- , Jeffrey D. Cain
- & Nathaniel P. Stern
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Letter |
Imaging exciton–polariton transport in MoSe2 waveguides
Imaging reveals properties of exciton–polaritons in MoSe2 waveguides.
- F. Hu
- , Y. Luan
- & Z. Fei
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Review Article |
Near-zero refractive index photonics
The underlying principles and unique optical applications of structures exhibiting near-zero dielectric permittivity and/or magnetic permeability are reviewed. The timely relevance to nonlinear, non-reciprocal and non-local effects is highlighted.
- Iñigo Liberal
- & Nader Engheta
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Feature |
Organics go hybrid
From displays to solar cells, the field of organic optoelectronics has come a long way over the past 50 years, but the realization of an electrically pumped organic laser remains elusive. The answer may lie with hybrid organic–inorganic materials called perovskites.
- Guglielmo Lanzani
- , Annamaria Petrozza
- & Mario Caironi
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Letter |
Laser writing of coherent colour centres in diamond
A negatively charged nitrogen–vacancy centre — a promising quantum light source — is created in diamond by laser writing (with pulses with a central wavelength of 790 nm and duration of 300 fs) with an accuracy of 200 nm in the transverse plane.
- Yu-Chen Chen
- , Patrick S. Salter
- & Jason M. Smith
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Article |
Near-infrared organic light-emitting diodes with very high external quantum efficiency and radiance
New design of Pt(II) phosphors yield near-infrared organic light-emitting diodes with high efficiency and brightness.
- Kiet Tuong Ly
- , Ren-Wu Chen-Cheng
- & Yun Chi
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Letter |
Plasmonic metamaterial absorber for broadband manipulation of mechanical resonances
Coherent mechanical oscillations are optically driven on a metamaterial absorber that has a voltage-tunable Fano resonance. Inversely, optical damping of the mechanical resonance is also achieved.
- Hai Zhu
- , Fei Yi
- & Ertugrul Cubukcu
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News & Views |
Antiferromagnets see the rainbow
Antiferromagnets are considered mysterious due to their lack of macroscopic magnetization. Researchers have now found a way to manipulate their magnetic ordering using different wavelengths of light.
- Richard F. L. Evans
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News & Views |
Bright future for upconversion
The synthesis of more efficient upconversion nanomaterials that absorb multiple low-energy photons in the near-infrared and then re-emit in the visible or ultraviolet was a key theme at the first UPCON conference.
- Dayong Jin
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Letter |
Room-temperature continuous-wave electrically injected InGaN-based laser directly grown on Si
The fabrication of a blue–violet semiconductor laser on a silicon substrate enhances the integration of optoelectronics with electronics.
- Yi Sun
- , Kun Zhou
- & Hui Yang
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Review Article |
Perovskite photonic sources
The prospects for light-emitting diodes and lasers based on perovskite materials are reviewed.
- Brandon R. Sutherland
- & Edward H. Sargent
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Review Article |
Optical modulators with 2D layered materials
The recent realization that 2D layered materials could modulate light with superior performance has prompted intense research and significant advances, paving the way for realistic applications.
- Zhipei Sun
- , Amos Martinez
- & Feng Wang
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Review Article |
Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides
The electronic and optical properties and the recent progress in applications of 2D semiconductor transition metal dichalcogenides with emphasis on strong excitonic effects, and spin- and valley-dependent properties are reviewed.
- Kin Fai Mak
- & Jie Shan
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Article |
Ultrafast switching of tunable infrared plasmons in indium tin oxide nanorod arrays with large absolute amplitude
Ultrafast plasmon modulation has been realized in the near- to mid-infrared range by intraband pumping of indium tin oxide nanorod arrays.
- Peijun Guo
- , Richard D. Schaller
- & Robert P. H. Chang
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Article |
High-gain infrared-to-visible upconversion light-emitting phototransistors
An optoelectronic device that efficiently converts infrared light to visible light could prove useful for imaging applications.
- Hyeonggeun Yu
- , Doyoung Kim
- & Franky So
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Letter |
Terahertz modulation of the Faraday rotation by laser pulses via the optical Kerr effect
Terbium gallium garnet is used to demonstrate a new approach to magneto-optical modulation at frequencies up to 1.1 THz.
- R. R. Subkhangulov
- , R. V. Mikhaylovskiy
- & A. V. Kimel
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News & Views |
Ultra-tunable graphene light source
Compact monochromatic X-ray sources based on graphene plasmons may soon become a reality.
- Gordon Robb
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Article |
Laser cooling of organic–inorganic lead halide perovskites
Perovskite crystals are shown to be highly efficient materials for optical refrigeration, supporting cooling of up to 58 K when exposed to laser light.
- Son-Tung Ha
- , Chao Shen
- & Qihua Xiong
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Review Article |
Spin–orbit interactions of light
This Review article provides an overview of the fundamental origins and important applications of the main spin–orbit interaction phenomena in modern optics that play a crucial role at subwavelength scales.
- K. Y. Bliokh
- , F. J. Rodríguez-Fortuño
- & A. V. Zayats
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Article |
Room-temperature InP distributed feedback laser array directly grown on silicon
Scientists demonstrate an optically pumped InP-based distributed feedback laser array monolithically grown on (001)-silicon operating at room temperature that is suitable for wavelength-division multiplexing applications.
- Zhechao Wang
- , Bin Tian
- & Dries Van Thourhout
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Letter |
Monolayer excitonic laser
A laser is made from the two-dimensional material WS2 by embedding it into a microdisk resonator.
- Yu Ye
- , Zi Jing Wong
- & Xiang Zhang
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Article |
A colour-tunable, weavable fibre-shaped polymer light-emitting electrochemical cell
A fibre-shaped light emitting electrochemical cell that can be woven and integrated with textiles offers new opportunities for smart fabrics.
- Zhitao Zhang
- , Kunping Guo
- & Huisheng Peng
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Article |
High-efficiency light-emitting devices based on quantum dots with tailored nanostructures
Bright, efficient red, green and blue quantum-dot LEDs are realized by customizing the nanostructure of the quantum dots.
- Yixing Yang
- , Ying Zheng
- & Lei Qian
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Letter |
Controlling light with metamaterial-based nonlinear photonic crystals
Nonlinearity engineering is demonstrated by the construction of metamaterial-based photonic crystals. Nonlinear emission and diffraction are controlled and intense focusing is reported.
- Nadav Segal
- , Shay Keren-Zur
- & Tal Ellenbogen
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Letter |
Lasing in direct-bandgap GeSn alloy grown on Si
Lasing is experimentally demonstrated in a direct bandgap GeSn alloy, grown directly onto Si(001). The authors observe a clear lasing threshold as well as linewidth narrowing at low temperatures.
- S. Wirths
- , R. Geiger
- & D. Grützmacher
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Review Article |
Two-dimensional material nanophotonics
The optical properties of graphene and emerging two-dimensional materials including transition metal dichalcogenides are reviewed with an emphasis on nanophotonic applications.
- Fengnian Xia
- , Han Wang
- & Ashwin Ramasubramaniam