Featured
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Article
| Open Access
Decoupling excitons from high-frequency vibrations in organic molecules
A molecular design strategy for reducing the vibration-induced non-radiative losses in emissive organic semiconductors is realized by decoupling excitons from high-frequency vibrations.
- Pratyush Ghosh
- , Antonios M. Alvertis
- & Akshay Rao
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Article |
Room temperature operation of germanium–silicon single-photon avalanche diode
A germanium–silicon single-photon avalanche diode operated at room temperature shows a noise-equivalent power improvement over the previous Ge-based single-photon avalanche diodes by 2–3.5 orders of magnitude.
- Neil Na
- , Yen-Cheng Lu
- & Shu-Lu Chen
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Article
| Open Access
All-analog photoelectronic chip for high-speed vision tasks
An all-analog chip combining electronic and light computing achieves systemic energy efficiency of more than three orders of magnitude and a computing speed of more than one order of magnitude compared with state-of-the-art computing processors.
- Yitong Chen
- , Maimaiti Nazhamaiti
- & Qionghai Dai
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Article
| Open Access
Ultrafast tunable lasers using lithium niobate integrated photonics
A frequency-tunable laser based on a hybrid silicon nitride and lithium niobate integrated photonic platform has a fast tuning rate and could be used for optical ranging applications.
- Viacheslav Snigirev
- , Annina Riedhauser
- & Tobias J. Kippenberg
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Article |
Plasmonic enhancement of stability and brightness in organic light-emitting devices
Plasmonic effects in organic light-emitting devices, which are normally considered a source of energy loss, are harnessed to enhance the stability of these devices while maintaining operational efficiency.
- Michael A. Fusella
- , Renata Saramak
- & Julia J. Brown
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Article |
Ultrafast machine vision with 2D material neural network image sensors
A two-dimensional semiconductor photodiode array senses and processes optical images simultaneously without latency, and is trained to classify and encode images with high throughput, acting as an artificial neural network.
- Lukas Mennel
- , Joanna Symonowicz
- & Thomas Mueller
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Article |
A volumetric display for visual, tactile and audio presentation using acoustic trapping
A volumetric display that can simultaneously deliver visual, tactile and auditory content is demonstrated.
- Ryuji Hirayama
- , Diego Martinez Plasencia
- & Sriram Subramanian
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Letter |
Gate-tunable frequency combs in graphene–nitride microresonators
Coupling graphene sheets with a silicon nitride ring microresonator allows the nonlinear cavity dynamics to be altered by a gate voltage, resulting in tunable, chip-scale, optical frequency combs.
- Baicheng Yao
- , Shu-Wei Huang
- & Chee Wei Wong
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Letter |
Low-loss plasmon-assisted electro-optic modulator
Ohmic losses in plasmonic devices can be reduced by exploiting ‘resonant switching’, in which light couples to surface plasmon polaritons only when in resonance and bypasses them otherwise.
- Christian Haffner
- , Daniel Chelladurai
- & Juerg Leuthold
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Letter |
Room-temperature nine-µm-wavelength photodetectors and GHz-frequency heterodyne receivers
Quantum-well photodetectors fabricated from photonic metamaterials show enhanced room-temperature sensitivity to long-wavelength infrared radiation and produce gigahertz-frequency heterodyne signals when pumped with quantum cascade lasers.
- Daniele Palaferri
- , Yanko Todorov
- & Carlo Sirtori
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Letter |
Revealing the quantum regime in tunnelling plasmonics
Two gold nanostructures with controllable subnanometre separation are used to follow the evolution of plasmonic modes; the distance at which quantum tunnelling sets in is determined, and a quantum limit for plasmonic field confinement is estimated.
- Kevin J. Savage
- , Matthew M. Hawkeye
- & Jeremy J. Baumberg
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Outlook |
Come into the light
Transparency across the spectrum combined with electronic prowess makes graphene an ideal photonic material.
- Neil Savage
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Research Highlights |
Optical devices: Organic light
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News & Views |
Optoelectronic chaos
Optoelectronic circuits with delayed feedback provide a convenient bench-top platform to study a wide range of nonlinear dynamic systems, from ultrastable clocks to complex chaotic devices.
- Laurent Larger
- & John M. Dudley
Heterogeneous integration of spin–photon interfaces with a CMOS platform