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Coherent all-optical modulation of nonlinear optics with chiral light in symmetrical crystals is achieved with ultra-fast speed (~ fs), unlimited bandwidth, perfect modulation depth (~100%), and compact footprint (atomic thickness).
A novel attosecond-scale streaking method was proposed and demonstrated to determine the tunneling time of an electron with a precision of a few attoseconds.
We demonstrate analogue photonics links using hollow-core fibres, showing they significantly surpass the performance of standard fibre analogue links in every metrics of link gain, noise figure, and dynamic range.
This work proposes a concept of intelligent wireless walls (IWW) to ensure high-precision activity monitoring in complex environments, namely corridor junction scenario and multi-floor scenario
A new technology enables fast production of waveguide (SPIM-WG) based high performance optical devices with very low loss, precisely organized refractive index, arbitrarily variable cross-sections and high coupling efficiency.
The multiple photonic dopants contained in an epsilon-near-zero medium can serve as non-interacting resonators, and offer an opportunity for the independent control of electromagnetic waves at various frequencies.
Ultrafast terahertz conductivity spectroscopy reveals the formation of large polarons in CH3NH3PbI3, which protects the charge carriers from scattering with polycrystalline grain boundaries or defects and explains the long lifetime.
We show that a programmable photonic integrated processor can separate, directly in the optical domain, spatially-overlapped free-space optical beams with unknown shapes, sharing the same wavelength and polarization.
We observe the error rate threshold of quantum fault-tolerant computation by using optical spatial modes of two entangled photons to encode logical qubits.
A 1-Pbps orbital-angular-momentum fibre-optic transmission system that combines space-division multiplexing and wavelength-division multiplexing in a 34 km 7-core ring-core fibre is demonstrated utilizing low-complexity 4 × 4 MIMO equalization.
Localization of single fluorescent emitters is key for physicochemical and biophysical measurements at the nanoscale. Recently, the method called MINFLUX has achieved a ~10-fold improvement in spatial resolution over previously developed techniques, reaching molecular resolution with moderate photon counts. However, the technical complexity of this technique has hindered its widespread application. The new technique called RASTMIN provides equivalent resolution to MINFLUX while it can be implemented in standard scanning (confocal) microscopes.
An electrically driven single-mode microlaser, containing a lasing peak at 390.5 nm, a narrow FWHM ~ 0.18 nm, and Q-factor ~ 2169, was proposed and demonstrated.
Liquid crystal metasurface based spatial light modulator is developed for terahertz dual-color compressive imaging. Significant improvement of imaging quality and speed is demonstrated using proposed auto-calibrated algorithms and frequency-switching method.
