47results about "Charged particle radiation pressure manipulation" patented technology

A system and method of accelerating ions in an accelerator to optimize the energy produced by a light source. Several parameters may be controlled in constructing a target used in the accelerator system to adjust performance of the accelerator system. These parameters include the material, thickness, geometry and surface of the target.

A system and method of accelerating ions in an accelerator to optimize the energy produced by a light source. Several parameters may be controlled in constructing a target used in the accelerator system to adjust performance of the accelerator system. These parameters include the material, thickness, geometry and surface of the target.

The present invention is concerned with a system for sorting target particles from a flow of particles. The system has a microscope, a light source, a CCD camera, microfluidic chip device with microfluidic channels, a detection apparatus for detecting the target particles with predefined specific features, a response generating apparatus for generating a signal in response to the detection of the target particles, and an optical tweezing system for controlling movement of optical traps, the optical tweezing system is operably linked to the response signal.

The device for producing laser-cooled atoms comprises a two dimensional trap or a three-dimensional trap, or a combination of two- and three-dimensional traps. The two-dimensional trap comprises: three or more permanent magnets arranged around a perimeter of a loop, wherein a plane of the loop is perpendicular to a free axis of the two-dimensional atom trap, and the three or more permanent magnets bracket an internal volume of the two-dimensional atom trap; and one or more laser beam input ports enabling access for one or more laser beams to the internal volume of the two-dimensional atom trap.

In an undulator magnet array, an upper magnet array is formed by coupling an upper shift magnet array and an upper reference magnet array, and a lower magnet array is formed by coupling a lower reference magnet array and lower shift magnet array arranged so as to face the magnet arrays. With reference to a state where the amplitudes of periodic magnetic fields that can be formed by the upper magnet array and the lower magnet array are maximized, the upper shift magnet array is shifted ¼ of a period to the left as seen from the lower reference magnet array and the lower shift magnet array is shifted ¼ of a period to the left as seen from the upper reference magnet array.

A technique is disclosed for electro-optically inducing a force to fabricated samples and / or devices with laser light. The technique uses the interaction of the oscillating electric field of the laser beam in opposition with the electric field produced by an appropriate electric charge carrier to achieve a net repulsive (or attractive) force on the component holding the electric charge. In one embodiment, force is achieved when the field near the charge carrier is modulated at a subharmonic of the electric field oscillation frequency of the laser and the relative phases of the light field and electric charge carrier field are controlled to provide optimal repulsion / attraction. The effect is scalable by applying the technique to an array of charge carrier fields sequentially as well as using higher power lasers and higher carrier field voltages.

The disclosure describes various aspects of a cryogenic trapped-ion system. In an aspect, a method is described that includes bringing a chain of ions in a trap at a cryogenic temperature, the trap being a micro-fabricated trap, and performing quantum computations, simulations, or both using the chain of ions in the trap at the cryogenic temperature. In another aspect, a method is described that includes establishing a zig-zag ion chain in the cryogenic trapped-ion system, detecting a change in a configuration of the zig-zag ion chain, and determining a measurement of the pressure based on the detection in the change in configuration. In another aspect, a method is described that includes measuring a low frequency vibration, generating a control signal based on the measurement to adjust one or more optical components, and controlling the one or more optical components using the control signal.

An ion trap system, including a laser control module for dividing the light beam into P first light beams and Q second light beams, N first light beams in the P first light beams are respectively transmitted to N ions, and the Q first light beams are respectively transmitted to N ions. The M second light beams in the two light beams are respectively transmitted to M monitoring units; the M monitoring units are used to monitor the M second light beams respectively, and obtain the spatial intensity distribution information of the M second light beams respectively, and the feedback control module is used for Receive the spatial intensity distribution information of the M second light beams, determine N first control signals according to the spatial intensity distribution information of the M second light beams, and transmit the N first control signals to the laser control module, wherein the N first control signals A control signal is in one-to-one correspondence with the N first beams, and the first control signal is used to control the laser control module to align the corresponding first beams with the ions. In this way, it is helpful to improve the alignment of the first light beam and the corresponding ions, thereby improving the fidelity of quantum state manipulation of the ions.

The present invention provides an undulator, wherein the undulator includes at least: M permanent magnet periods arranged in sequence along the electron beam transmission direction, each of the permanent magnet periods includes four rows of permanent magnet structures, and each row of permanent magnets The magnet structure includes N rows of permanent magnet groups, and each row of permanent magnet groups includes K permanent magnet units, wherein M, N, and K are all natural numbers greater than or equal to 1; the permanent magnet structures of the four rows are paired and opposite It is arranged on both sides of the electron beam transmission direction, and can form at least one composite magnetic field through relative displacement, so that when the electron beam passes through the composite magnetic field, it can generate elliptically polarized light, circularly polarized light, or any polarization angle from 0° to 360° direction of linearly polarized light, and make the direction of electron velocity deviate from the axis direction of the undulator. The invention can generate not only linearly polarized light, but also elliptical and circularly polarized light, and can make the direction of electron velocity never along the axial direction of the undulator, thereby greatly reducing the thermal load of the synchrotron radiation beamline.