Featured
-
-
Article |
Self-organized lasers from reconfigurable colloidal assemblies
Experiments inspired by the behaviour of active matter show that an external optical stimulus can spatially reconfigure colloidal random lasers and continuously tune their lasing threshold.
- Manish Trivedi
- , Dhruv Saxena
- & Giorgio Volpe
-
Letter |
Moiré engineering of electronic phenomena in correlated oxides
Moiré engineering has rapidly gained currency as a means to manipulate electronic states of matter in van der Waals heterostructures. Now, the feat is achieved in epitaxially grown oxide heterostructures, thus opening up fresh opportunities for strongly correlated electronic systems.
- Xinzhong Chen
- , Xiaodong Fan
- & Changgan Zeng
-
Article |
Sub-femtosecond electron transport in a nanoscale gap
Single-cycle interferometric autocorrelation measurements of electrons tunnelling across the gap of a plasmonic bowtie antenna and quantitative models provide insight into the physical interactions that drive the electron transfer.
- Markus Ludwig
- , Garikoitz Aguirregabiria
- & Daniele Brida
-
-
Letter |
Optical-field-controlled photoemission from plasmonic nanoparticles
Photoemission is usually driven by the energy of the illuminating laser pulses, but in the strong-field regime, the photoemission from an array of plasmonic nanoparticles is shown to be controlled by the light’s electric field.
- William P. Putnam
- , Richard G. Hobbs
- & Franz X. Kärtner
-
-
-
Article |
Electrical control of optical emitter relaxation pathways enabled by graphene
The relaxation processes of light-emitting excited ions are tunable, but electrical control is challenging. It is now shown that graphene can be used to manipulate the optical emission and relaxation of erbium near-infrared emitters electrically.
- K. J. Tielrooij
- , L. Orona
- & F. H. L. Koppens
-
News & Views |
Hungry cavities
A microcavity device operating in the strong light–matter interaction regime can produce coherent perfect absorption of photons — providing a viable system for the perfect feeding of polaritons.
- Cristiano Ciuti
-
Letter |
Perfect energy-feeding into strongly coupled systems and interferometric control of polariton absorption
The absorption properties of a resonator can be tuned by varying the phase between incoming coherent light beams. Such control is now shown under strong coupling conditions, allowing all incoming energy to be converted into polaritons.
- Simone Zanotto
- , Francesco P. Mezzapesa
- & Alessandro Tredicucci
-
News & Views |
Optomechanics sets the beat
A tiny drum converts between infrared and microwave signals with record efficiency by keeping the beat of both.
- Mankei Tsang
-
Article |
Bidirectional and efficient conversion between microwave and optical light
An optomechanical system that converts microwaves to optical frequency light and vice versa is demonstrated. The technique achieves a conversion efficiency of approximately 10%. The results indicate that the device could work at the quantum level, up- and down-converting individual photons, if it were cooled to millikelvin temperatures. It could, therefore, form an integral part of quantum-processor networks.
- R. W. Andrews
- , R. W. Peterson
- & K. W. Lehnert
-
Letter |
Fast optical modulation of the fluorescence from a single nitrogen–vacancy centre
The intensity of optically-pumped fluorescence generated from a single atomic defect in diamond can be reduced by 80% in just 100 ns by applying infrared laser light. This result demonstrates the possibility of using these so-called nitrogen–vacancy centres to create optical switches that operate at room temperature.
- Michael Geiselmann
- , Renaud Marty
- & Romain Quidant
Broadband coherent wave control through photonic collisions at time interfaces