Chiral crystal growing device and method

Abstract

The invention discloses a chiral crystal growing device and a chiral crystal growing method. The chiral crystal growing device is characterized by comprising a laser, a polarizer, a light conversion propagation assembly and a liquid container, wherein the polarizer is arranged on a light propagation path of a laser beam emitted by the laser, the light conversion propagation assembly is arranged between the polarizer and the liquid container, after the laser beam emitted by the laser passes through the polarizer, linearly polarized light is formed, after the linearly polarized light output by the polarizer passes through the light conversion propagation assembly, beam expanding parallel circularly polarized light is formed, and the beam expanding parallel circularly polarized light output by the light conversion propagation assembly irradiates a water-soluble chiral crystal saturated solution contained in the liquid container. The chiral crystal growing device has the advantages that the growing device is simple in structure, convenient to operate, capable of controlling the rotation direction of chiral crystals by matching with the corresponding growing method and beneficial to increasing of the yield of the chiral crystal with specific single rotation direction, and the chiral crystal growing device and the chiral crystal growing method are harmless to operators and environments.

Description

technical field [0001] The invention relates to a chiral crystal growth technology, in particular to a chiral crystal growth device and method. Background technique [0002] When polarized light passes through the solution of some crystals or some non-crystalline substances, the phenomenon that the vibration plane rotates with the direction of light propagation as the axis is called optical rotation phenomenon. Such crystals or non-crystalline substances have optical rotation, which is called Optically active substances. Since the rotation of the vibrating surface has directionality, optically active substances can be further divided into left-handed substances and right-handed substances. Chiral crystals such as quartz crystals, sodium chlorate crystals, and sodium bromate crystals have both left-handed and right-handed structures. In addition to having optical rotation, these chiral crystals also have obvious dispersion effects. Under the action of the photoelectric fie...

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Problems solved by technology

In the process of crystal growth, these methods often cause the handedness of chiral crystals to be unable to be fixed due to factors such as stirring rate, pH and supersaturation of the solution, and chiral symmetry breaking of the crystal, and cannot stably generate specific handedness. Chiral crystals (seed crystals)

With the improvement of relevant technical levels, researchers use β radiation and ultrasonic waves to affect the ratio of left and right handedness in the process of crystal growth, and have achieved certain results. However, the operation of these technical means is generally too complicated, and long-term β radiation may cause It will have an adverse effect on the health of the operator itself; in addition, the method of ultrasonically controlling the left and right handedness of crystals is not mature enough, especially in controlling the yield of specific single-handed chiral crystals.

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