OPTICAL TRAP Russian patent published in 2023 - IPC G02F1/11 G02B26/08 G21K1/00 

FIELD: laser techniques.

SUBSTANCE: optical devices for capturing microparticles. The optical trap consists of a laser source with a telescope, a spatial shaper, the first objective, an acoustic-optic filter, a second objective, a Glan-Taylor prism, a first acoustic-optic deflector, a second acoustic-optic deflector, and an opaque mirror on the axis of the beam reflected by the mirror , the first lens, the third objective and a transparent cuvette are sequentially located, on the axis of the beam reflected by the Glan-Taylor prism, the second lens and the dichroic mirror are sequentially located, on the axis of the beam reflected by the dichroic mirror, the fourth objective is sequentially located, the indicated cuvette, the fifth objective, the third lens and an incoherent source, the radiation axis of which coincides with the axis and is directed in the opposite direction, on the axis of the radiation beam of the specified incoherent source, the sixth lens and the camera containing the matrix of devices with charge coupling, the computer connected by the first interface cable to the specified camera, the first generator signals connected by the second interface cable to the specified computer and the first high-frequency cable with the specified filter, the second signal generator connected by the third interface cable to the specified computer and the second high-frequency cable with the specified first deflector, the third signal generator connected by the fourth interface cable to the specified computer and the third high-frequency cable with the specified second deflector.

EFFECT: increasing the efficiency of using the energy of the laser beam and the possibility of three-dimensional control of the radius and position of the bases of the cylindrical capture zone with a speed of up to 100 kHz.

1 cl, 1 dwg