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The behaviour of multi-dimensional excitation dynamics and localization transition is synthesized in one-dimensional lattices formed by planar photonic structures.
Programmable linear optical networks are implemented in a multimode fibre. The intermodal coupling between the spatial and polarization modes of the fibre is controlled by wavefront shaping. The network is used to emulate tunable coherent absorption.
By designing wavefronts in the far field that have optimal properties in the near field, a general framework for optimal micromanipulation with targets of arbitrary shape and in arbitrarily complex environments, such as disordered media, is reported.
Luminescent CsPbBr3 quantum dots can be written into glass using femtosecond laser pulses and thermal annealing, and erased by further femtosecond laser irradiation. The resulting quantum dot patterns could prove useful for data storage, decoration or security purposes.
Freely propagating, locally and globally chiral electric fields are introduced, enabling full control over intensity, polarization and propagation direction of the nonlinear enantio-sensitive optical response of randomly oriented chiral molecules.
By driving ultrafast soliton molecules with an all-optical external perturbation and monitoring their response in real time, a form of spectroscopy of soliton molecules akin to optical spectroscopy of chemical bonds is introduced.
An amplitude squeezed light source that operates down to 1 kHz frequencies—the lowest squeezing frequency—is generated in nonlinear crystal-based systems. By injecting the squeezed light into a microresonator, the quantum radiation pressure noise is reduced by 1.2 dB.
Unusual photoemission from graphene is explained by the emission of hot electrons. The findings may lead to integrated photonic devices driven by hot-electron emission.
Responses to high-intensity mid-infrared laser light are theoretically investigated in the Haldane system. It is found that the primary electronic response, optical tunnelling and high-harmonic emission are sensitive to the topological phase of matter.
Using graphene as the ‘metal’ layer can increase the localization accuracy of metal-induced energy transfer, enabling axial localization of single emitters and measurement of the thickness of lipid bilayers with ångström accuracy.
A violation of bilocal inequality is demonstrated with two truly independent light sources delivering entanglements to three nodes. To this end, the locality, measurement independence and quantum source independence loopholes are closed simultaneously.
Blue light-emitting diodes based on perovskite nanostructures embedded within quasi-two-dimensional phases show highly effective charge injection and suppressed non-radiative recombination.
A hybrid material based on uniform graphene on both the outer surface and inner hole walls of a photonic crystal fibre offers a strong, tunable light–matter interaction and good broadband electro-optic modulation performance under low gate voltage.
A sender and a receiver for continuous-variable quantum key distribution are packed onto separate silicon photonic chips. By using an external 1,550-nm laser, a secret key rate of 0.14 kbps is transmitted over a simulated distance of 100 km in fibre.