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We report optically-generated focused ultrasound for non-invasive brain stimulation with ultrahigh precision of 83 µm, which is two orders of magnitude smaller than that of conventional transcranial focused ultrasound.
We present experimentally unsupervised learned deconvolution for light-sheet microscopy using propagation-invariant beams. By training a generative adversarial network using simulated paired images consistent with the physics of the imaging system, and real unpaired experimental data, we create a network that can rapidly and robustly deconvolve microscopy images encoded by a complex point-spread function, such as from Airy or Bessel beams. The method is facile and does not need data for training outwith that obtained during conventional imaging.
Two-dimensional photonic crystal phosphor is upgraded in terms of both material and structure, which results in ~7 times enhanced color conversion efficiency compared with reference phosphor.
A semi-nonlinear waveguide in etchless silicon nitride/lithium niobate thin film based on bound states in the continuum achieves high-efficiency second harmonic generation.
Topological insulator metamaterials bring nonlinear terahertz photonic technology a step closer by producing a third-harmonic output power close to a milliwatt.
Afterglow luminescent particles of ZnS:Ag,Co are developed as an efficient light delivery agent for photochemical tissue bonding in deep tissues with prolonged luminescence.
CIOMP report their progress in high-accuracy manufacturing of the world’s largest SiC aspheric mirror. The final surface figure error is 15.2 nm RMS and aerial density is less than 120 kg/m2.
We show that the photon dynamics and lifetimes in asymmetric optical microcavities are greatly modified if the cavity is constructed in a topologically curved space.
A novel stretchable spoof plasmonic meta-waveguide with excellent stability, superior durability, and self-healing ability is achieved, which could ensure reliable microwave transmission in future flexible wireless communication systems.
Carbonized polymer dots effectively improved the stability and flexibility of perovskite photodetector by achieving no loss response after bending 10000 times and resolving a weak light of 10.1 pW cm−2
A single metasurface is used to generate multiple 3D knots with predesigned polarization profiles. At a given region, only a single 3D polarization knot can be obtained for a single color. Different 3D polarization knots can be obtained by changing the incident colors (left). The generated polarization structures are unveiled after passing through a linear polarizer (right).
The fluorophore source of red emissive oPD&CAT system CDs is the 5,14-dihydroquinoxalino[2,3-b] phenazine (DHQP), formed in the initial reaction stage. Subsequently, the DHQP was connected with carbon core. The excited electrons of the molecular state can transfer into the energy level of CDs, which leads to UV excitation red emissive intensity decreased.
The imaginary Maxwell stress tensor IMST and the reactive strength of orbital momentum ROM are established. It is shown that they universally produce reactive electromagnetic forces ILFs that counteract all currently observed time-averaged optical forces RLFs.
We theoretically and experimentally study soliton generation and real-time dynamics via time magnifier in microresonator-filtered fiber lasers, achieving self-starting, broad-bandwidth, high-efficiency, and low-noise soliton microcombs at ≥ 10 GHz.
An ultracompact 1 × 2 thermo-optic topological switch is demonstrated by leveraging the high-efficiency phase-shifting property and the sharp-turn feature of the topological waveguides.
Micro-light-emitting diodes (µLED) with bright, ultra-stable green emissions are monolithically achieved on Si substrate. The quantum-confined Stark effect is screened by introducing polarization doping in the shell.