On-chip petahertz electronics for single-shot phase detection.

Attosecond science has demonstrated that electrons can be controlled on the sub-cycle time scale of an optical waveform, paving the way towards optical frequency electronics. However, these experiments historically relied on high-energy laser pulses and detection not suitable for microelectronic integration. For practical optical frequency electronics, a system suitable for integration and capable of generating detectable signals with low pulse energies is needed.

Magnetic field expulsion in optically driven YBaCuO.

Coherent optical driving in quantum solids is emerging as a research frontier, with many reports of interesting non-equilibrium quantum phases and transient photo-induced functional phenomena such as ferroelectricity, magnetism and superconductivity. In high-temperature cuprate superconductors, coherent driving of certain phonon modes has resulted in a transient state with superconducting-like optical properties, observed far above their transition temperature T and throughout the pseudogap phase. However, questions remain on the microscopic nature of this transient state and how to distinguish it from a non-superconducting state with enhanced carrier mobility.

Multimaterial 3D Laser Printing of Cell-Adhesive and Cell-Repellent Hydrogels.

Here, a straightforward method is reported for manufacturing 3D microstructured cell-adhesive and cell-repellent multimaterials using two-photon laser printing. Compared to existing strategies, this approach offers bottom-up molecular control, high customizability, and rapid and precise 3D fabrication. The printable cell-adhesive polyethylene glycol (PEG) based material includes an Arg-Gly-Asp (RGD) containing peptide synthesized through solid-phase peptide synthesis, allowing for precise control of the peptide design.

Hybrid CO-Ti:sapphire laser with tunable pulse duration for mid-infrared-pump terahertz-probe spectroscopy.

We describe a mid-infrared pump - terahertz-probe setup based on a CO laser seeded with 10.6 μm wavelength pulses from an optical parametric amplifier, itself pumped by a Ti:AlO laser. The output of the seeded CO laser produces high power pulses of nanosecond duration, which are synchronized to the femtosecond laser.

Perspective taking failures in the valuation of mind and body.

Accurately inferring the values and preferences of others is crucial for successful social interactions. Nevertheless, without direct access to others' minds, perspective taking errors are common. Across 5 studies, we demonstrate a systematic perspective taking failure: People believe they value their minds more than others do and often believe they value their bodies less than others do.

Generation of narrowband, high-intensity, carrier-envelope phase-stable pulses tunable between 4 and 18 THz.

We report on the generation of high-energy (1.9 μJ) far-infrared pulses tunable between 4 and 18 THz frequency. Emphasis is placed on tunability and on minimizing the bandwidth of these pulses to less than 1 THz, as achieved by difference-frequency mixing of two linearly chirped near-infrared pulses in the organic nonlinear crystal DSTMS.

Efficient generation of below-threshold harmonics for high-fidelity multi-photon physics in the VUV spectral range.

We demonstrate the generation of microjoule level, sub-20-fs, Ti:Sa fifth-harmonic pulses utilizing a loose-focusing geometry in a long Ar gas cell. The VUV pulses centered at 161.8 nm reach pulse energies of 1.

Dental transposition of canine and lateral incisor and impacted central incisor treatment: a case report.

Introduction: Dental transposition and impaction are disorders related to ectopic eruption or failure in tooth eruption, which can affect child physical, mental and social development and may be difficult to be clinically solved.

Methods: We describe a case of transposition between the upper left canine and lateral incisor associated with impaction of the central incisor on the same side, in a 12-year-old patient. Conservative treatment involving surgical-orthodontic correction of transposed teeth and traction of the central incisor was conducted.