Spherical multipath double-heterojunction quantum dot-based artificial compound eye laser system

A double heterojunction and quantum dot technology, which is applied in the field of artificial compound eye laser systems, can solve problems affecting the detection signal-to-noise ratio, sensitivity, and deterioration of detection effects.

Active Publication Date: 2017-01-25
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

Most of the current artificial compound eyes are passive compound eyes, that is, they passively receive electromagnetic wave information of various bands outside, and then analyze an

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  • Spherical multipath double-heterojunction quantum dot-based artificial compound eye laser system
  • Spherical multipath double-heterojunction quantum dot-based artificial compound eye laser system

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Embodiment Construction

[0017] The structure of artificial compound eye laser system based on spherical multi-channel double heterojunction quantum dots is as follows: figure 1 (meridian view) and figure 2 As shown in the top view, the laser system is mainly composed of a main controller 1, a constant current drive source 2 and a plurality of quantum dot ommatidium laser units 17 with the same structure. Each quantum dot ommatidium laser unit 17 is composed of ommatidium laser emission window 6, external electrode 5, upper layer P-DBR7, upper blocking layer 8, active region 9, quantum dots 10, lower blocking layer 12, lower layer N-DBR13, N + Type substrate 14 and internal electrodes 15. All substrate materials in this embodiment are gallium arsenide (GaAs).

[0018] The shape of the laser system is hemispherical, the circular plane at the bottom of the hemisphere is the bottom surface 3 of the compound eye, and the central axis 11 of the compound eye is a straight line perpendicular to the botto...

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Abstract

The invention discloses a spherical multipath double-heterojunction quantum dot-based artificial compound eye laser system, which consists of a master controller, a constant current driving source and multiple quantum dot small eye laser units with the same structure, wherein each quantum dot small eye laser unit consists of a small eye laser emitting window, an external electrode, an upper-layer P-DBR (P-distributed bragg reflector), an upper blocking layer, an active area, a quantum dot, a lower blocking layer, a lower-layer N-DRB, an N<+> type substrate and an internal electrode. N quantum dot small eye laser units have the same geometric structure and matter distribution, emitted laser has the same wavelength characteristic, and N beams of continuous laser emitted from the small eye laser emitting windows along the directions of optical axes of each small eye and having a wavelength lambada are finally obtained. The system has the beneficial effects that key problems about efficient miniaturization of a multi-channel parallel compound eye laser are solved. According to an artificial compound eye laser, the wavelength and the intensity are selected, so that a compound eye can be adapted to different environments to detect various characteristics of stimulated emission, scattering and the like of a target.

Description

technical field [0001] The invention relates to a laser system, in particular to an artificial compound eye laser system based on spherical multi-channel double heterojunction quantum dots. Background technique [0002] Artificial compound eye (ACE) is an optical system that simulates the compound eye structure of insects in nature. It replaces the widely used single-aperture optical system with a multi-aperture optical system to achieve miniaturization, light weight, and increased field of view of the entire system. big purpose. In recent years, foreign researchers have successfully produced various artificial compound eye systems with different structures and uses. For example, Luke P.Lee of the University of California, Berkeley, USA, realized a hemispherical ACE by using polymer microlenses, polymer cones, and self-aligning waveguides; The cross-sectional shape of each ommatidium microprism is calculated, and the imaging of the wide-field scene on the plane detector is...

Claims

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Application Information

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IPC IPC(8): H01S5/06H01S5/10H01S5/20H01S5/34
CPCH01S5/06H01S5/1082H01S5/2004H01S5/34H01S5/3407
Inventor 万雄
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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