❤️🕯

LOVE
LOVE
LOVE

🙏🏻

Me too praying, I feel you, but I don’t understand.
Connecting is full of Love.
I saw a star or something, up above when I woke up, it was dancing.
LOVE

Schematic drawing of the elongated laser plasma of a Gaussian beam in side view, roughly indicating the direction of mechanical forces leading to cavity formation within the corneal lamellae (A). To improve cutting precision, it would be ideal to have a disk-like plasma orientated parallel to the corneal surface along the cutting direction and the cleavage lines given by corneal lamellae (B). This feature can be approximated by introducing a spiral phase mask with 2π phase shift (C) into the beam path that converts the linear polarized Gaussian beam exiting the laser into a vortex beam with helical phase (D). The foci of the Gaussian and vortex beam are presented in (E), with the vortex beam focus shown in the top view. It has a ring shape, with the same length in the axial direction as the focus of the Gaussian beam, but with a diameter two times larger. 22

4: Dipole in an electric field (a) Sketch of an electric dipole p s composed of two charges of opposite signs +q and −q in an electric field E(r, t). (b) Electric field lines (dashed lines) and equipotential lines (solid lines) of the electrostatic potential due to an electric dipole.

Cavity quantum electrodynamics (CQED) focuses on understanding the interactions between matter and the electromagnetic field in cavities at the quantum level1,2. In the past years, CQED has attracted attention3,4,5,6,7,8,9 especially owing to its importance for the field of quantum information10. At present, photons are the best carriers of quantum information between physically separated sites11,12 and quantum-information processing using stationary qubits10 is most promising, with the furthest advances having been made with trapped ions13,14,15.

The implementation of complex quantum-information-processing networks11,12 hence requires devices to efficiently couple photons and stationary qubits. Here, we present the first CQED experiments demonstrating that the collective strong-coupling regime2 can be reached in the interaction between a solid in the form of an ion Coulomb crystal16 and an optical field. The obtained coherence times are in the millisecond range and indicate that Coulomb crystals positioned inside optical cavities are promising for realizing a variety of quantum-information devices, including quantum repeaters12 and quantum memories for light17,18. Moreover, cavity optomechanics19 using Coulomb crystals might enable the exploration of similar phenomena investigated using more traditional solids, such as micro-mechanical oscillators20.

Micromechanical oscillators provide periodic output signals for clocks and sensors by vibrating in a single mechanical mode. The mode is conventionally excited into self-sustained oscillations and stabilized with an external electronic feedback loop.

https://pubs.rsc.org/en/co...

(a) Schematic of two-color QD-QD FRET Ca 2+ sensor. Green donor CdTe QDs and red CdTe acceptor QDs are each coated with thioglycolic acid (TGA), imparting a negative surface charge. In the presence of the calcium cation, the QDs aggregate, bringing them in close enough proximity for energy transfer to occur efficiently. Schematic is not drawn to scale; (b) The PL spectrograph shows a decrease in the green donor emission and increase in the red acceptor emission with increasing calcium cation concentration; (c) Time-resolved PL of the green emission with increasing amounts of calcium; as the cation concentration increases, QD-QD interactions are promoted. The donor emission lifetime visibly shortens, indicating that the green QDs are acting as FRET donors; (d) Time-resolved PL of deep red emission from red-only and green-and-red-mixed QD samples. In the presence of the green donor QD, the PL lifetime of the red emission is elongated; (b-d)