Programmable optical component based on scattering medium, optical field regulation system, and optical field regulation method

Abstract

The invention provides a programmable optical component based on a scattering medium, an optical field regulation system, and an optical field regulation method, and solves technical problems that a conventional optical component has single function, is high in optical wave modulation cost, has complex apparatus and low integration degree. The system in the invention is successively provided with a light source beam expanding module, a modulation module, a scattering medium microscopic module and a detection module, a data processing module arranged between the modulation module and the detection module. A computer circularly controls a space light modulator to modulate an input optical field, and a detector detects an output optical field; then data shaping is carried out and an optical transmission matrix of the scattering medium is detected; and then a programmable optical component is constructed so as to achieve optical field regulation with methods such as optical phase conjugation, phase retrieval, speckle reconstruction and the like, wherein the optical field regulation includes imaging, chromatic dispersion, abnormal chromatic dispersion, focusing, shaping, etc. The programmable optical component and the system are intelligent, multi-functional, low-cost, easy to operate, highly integrated and strong in operability, and can be applied to the scientific research fields such as military science, bio-medicines, integrated optic, nano photonics, etc.

Description

technical field [0001] The invention belongs to the technical field of new system optical imaging and light field regulation, and mainly relates to a programmable intelligent optical element and an imaging system, in particular to a digital intelligent programmable optical element and an imaging system based on a scattering medium. The invention can realize the programmable control of light wave and the construction of multifunctional controllable optical element, which is used for light wave control and light beam shaping. Background technique [0002] Using traditional refractive optical elements and based on the law of refraction can control and confine the light beam, but it is difficult for a single optical element to generate a more complex light field. Generally, to generate a specific complex light field, a catadioptric lens combination system is required to achieve it. [0003] The birefringent lens group shaping system is composed of two pairs of birefringent cryst...

AI Technical Summary

Problems solved by technology

Due to its complex design, sub-wavelength control accuracy is required for manufacturing and processing, the cost is high, and the energy utilization efficiency is limited, so its application development and application fields have received certain restrictions.

[0008] The above methods have their own strengths, but they all have a common disadvantage: each device is designed for a specific beam, and the function of the fabricated optical element is limited, so its transmission function cannot be flexibly adjusted

[0013] The above-mentioned light field regulation method and the optical transmission matrix measurement method have their own advantages, but there are also many shortcomings, such as the inability to achieve ideal light wave output for different light field inputs, complex structure and high cost, and relatively high requirements for some parameters of the experimental device. Harsh, can only solve specific problems but cannot comprehensively and accurately describe the role of the light field, and cannot achieve any controllable light field output, beam shaping and light wave transformation, etc.

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