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Owing to spectral long-range correlation, broadband energy can be delivered to extended targets deep inside a multiple-scattering system, greatly broadening the scope of controlling wave transport in disordered systems.
The position and emission wavelengths of single quantum dots embedded in a one-dimensional planar cavity can be simultaneously determined from a single photoluminescence image with 15 nm spatial accuracy and subnanometric spectral accuracy in the near-infrared.
Exploiting the interactions between bright excitons and free carriers in an atomically thin semiconductor of trilayer tungsten diselenide WSe2 results in Fermi polarons that exhibit unusually large nonlinearity.
A terahertz-driven photogun with field gradients of 3 GV m−1 is demonstrated by using a few microjoules of single-cycle terahertz radiation. The emitted electrons are accelerated up to 14 keV and can be focused down to 90 μm. The electron bunch is further compressed to 167 fs.
Terawatt-scale, sub-femtosecond, soft X-ray pulses have been demonstrated at the Linac Coherent Light Source using a superradiant cascaded amplification approach.
Andrew M. Weiner, a luminary in ultrafast optics and quantum photonics passed away on February 13, 2024, at the age of 65. He will be remembered for his profound contributions to the optics and photonics community, engineering, education, and for his devoted mentorship. He leaves behind a legacy of innovation and inspiration.
A ring laser gyroscope, located at the Geodetic Observatory Wettzell in Southern Germany, measures variations in the Earth’s rotation. Nature Photonics spoke to a key researcher on the project, Ulrich Schreiber, about the system’s birth, teething issues, and how it may one day probe the El Niño effect.
Manipulating extreme ultraviolet (EUV) light is notoriously challenging owing to the lack of efficient light modulators. Quantum materials with properties controllable by light may provide an answer.
Super-stealth laser cutting with nanometre precision and aspect ratios of the order of 1,000 is demonstrated. The technique is applicable to a broad variety of transparent solids, including silica, lithium tantalate, lithium niobate, YAG, Ce:YAG, Ti:sapphire and β-Ga2O3.
Researchers demonstrate a compact metasurface-based Mueller matrix imaging system. All 16 components of an object’s spatially varying Mueller matrix can be attained in a single shot.
Attosecond core-level spectroscopy is used to probe the ultrafast molecular dynamics of furan at the carbon K-edge, demonstrating its ability to simultaneously probe electronic and vibrational dynamics.
Sub-cycle confinement and control of phase transitions in strongly correlated materials are theoretically demonstrated, potentially providing a way to investigate electron dynamics on timescales previously unattainable with these materials.
A quantum-dot laser directly grown on silicon that is scalable, low cost with an intrinsic linewidth of 16 Hz when subject to feedback from a low-quality-factor external cavity is reported.
Strain-engineered pseudomagnetic fields realized in two-dimensional photonic crystals induce flat-band Landau levels at discrete energies as well as chiral edge states. The high density of states and high degeneracy of the flat bands has implications for both on-chip and radiating light fields.
A frequency detuning between two pump lasers enables an exciton–polariton Floquet optical lattice and a polariton ‘conveyor belt’. The findings pave the way for Floquet engineering in polariton condensates.