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Using squeezed states of light combined with a real-time Bayesian adaptive estimation algorithm, deterministic phase estimation with a precision beyond the quantum shot noise limit is demonstrated without any prior knowledge of the phase's value.
Dark pulse combs are formed in normal-dispersion microresonators with mode-interaction-assisted excitation, increasing freedom in microresonator design and potentially extending Kerr comb generation into the visible wavelength regime.
Researchers exploit direct stochastic optical reconstruction microscopy and dedicated detection of super-critical-angle fluorescence emission to enable direct optical nanoscopy with axially localized detection.
Cells are transformed into self-contained, individual lasers with customizable emission properties via the injection of suitable fluorescent dyes and lipids or beads.
A mechanism for the propagation of mid-infrared femtosecond laser pulses in air is theoretically investigated. A numerical simulation predicts that the propagation of multiple-terawatt pulses is possible over hundreds of metres.
Scientists have realized a graphene electro-optic modulator operating with a 30 GHz bandwidth and with a state-of-the-art modulation efficiency of 1.5 dB V−1, paving the way for fast digital communications.
Femtosecond stimulated Raman experiments on the antiferromagnetic system KNiF3 are implemented to understand how the exchange interaction — a crucial interaction that rules magnetic phenomena — is influenced by ultrafast optical excitation.
The prediction of light propagation up to hundreds of millimetres within straight or even deformed segments of multimode fibres is demonstrated. The concept is applied in an endoscope and exceptional resolution and footprint are obtained.
The room-temperature lasing of a single nanowire containing 50 quantum dots is demonstrated, paving the way towards ultrasmall lasers with extremely low power consumption for integrated photonic systems.
A high-dimensional hyperentanglement of polarization and energy–time subspaces is demonstrated using a biphoton frequency comb. The long-postulated Hong–Ou–Mandel quantum revival is exhibited, with up to 19 time-bin dimensions and 96.5% visibility.
Atomically thin layers of transition metal dichalcogenides are shown to exhibit a disappearance of strong excitonic absorption along with population inversion at the direct gap over a spectral range of hundreds of meV after pulsed photoexcitation.
The observation of macroscopic and direct light propulsion of bulk-graphene-based material offers an exciting opportunity for realizing long-sought proposals in areas such as space transportation driven directly by sunlight.
Monitoring the interaction between the local environment and a particle trapped inside a hollow optical fibre offers a new approach for optical sensing.
A 10 μm quantum cascade laser is phase-locked to a remote ultrastable laser referenced to primary frequency standards using an optical frequency comb. The obtained relative stability of 2 × 10−15 is record-breaking in the mid-infrared region.