Parallel Silicon Nanowire Structure for Directional Laser Detection
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Solution Overview
Problem
Existing technologies face challenges in achieving precise detection of a specific angle and non-contact signal transmission in a micro-nanometer scale space.
Innovation Solution
A micro-nano structure with parallel silicon wires on a substrate, connected by a potentiometer, experiences a near-field coupling effect with a laser beam, allowing one wire to be suppressed and the other to maintain brightness, enabling precise detection and non-contact signal transmission by measuring potential differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional detection methods are used in micro-nanometer scale space, then device complexity is reduced, but measurement precision of laser signal angle and direction is insufficient
Solution Approach 1:
The detection structure is segmented into multiple silicon wires arranged in specific geometric patterns (e.g., T-shaped, L-shaped, or parallel configurations) on the substrate. Each silicon wire acts as an independent sensing element that interacts with the laser beam, allowing precise angular detection through differential signal analysis while keeping individual wire dimensions in the micro-nanometer scale.
Solution Approach 2:
Different regions of the substrate are assigned different functional qualities: the silicon wires are positioned at specific locations and orientations to detect different angular components of the laser beam, while the substrate itself provides electromagnetic field confinement. This local differentiation enables precise angle detection without requiring complex overall system architecture.
2Reliability
If conventional signal transmission methods are used, then ease of operation is maintained, but confidentiality and anti-interference capability are insufficient
Solution Approach 1:
The patent replaces conventional electrical signal transmission with optical signal transmission using laser beams. The silicon wires modulate the laser light based on detected physical quantities, and the modulated optical signals are transmitted wirelessly through free space to the receiver. This substitution provides inherent immunity to electromagnetic interference and eavesdropping while maintaining operational simplicity through standardized optical coupling interfaces.
3Use of energy by moving object
If micro-nanometer scale structures are used, then energy consumption is reduced, but detection precision and signal stability are insufficient
Solution Approach 1:
The patent transitions from planar two-dimensional silicon wire structures to three-dimensional configurations by vertically stacking multiple silicon wire layers on the substrate. This vertical dimensionality increase enhances the interaction length between the laser beam and silicon wires, improving detection precision and signal stability while maintaining low energy consumption through the compact vertical footprint that reduces material usage compared to expanded horizontal structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate detection of laser signals at specific angles and non-contact signal transmission in a micro-nano scale space with resistance to magnetic fields, low delay, high confidentiality, and low energy consumption.
Implementation Method 1
a near-field coupling effect occurs between the silicon wires and the substrate when laser light irradiates the silicon wires
Data Source
AI summary
The present invention relates to a micro-nano structure sensitive to a laser beam in a specific direction, including a substrate, wherein an insulating layer is fixedly disposed on the substrate, the insulating layer is provided with two silicon nanowires parallel to each other and having the same shape and size, lead-out nanowires are arranged at both ends of each of the silicon nanowires and are connected with a potentiometer, and a near-field coupling effect occurs between the silicon nanowires and the substrate when laser light irradiates the silicon nanowires, and one silicon nanowire closer to a laser light source is completely suppressed and the other silicon nanowire farther away from the laser light source maintains brightness. The present invention enables precise detection of a laser signal at a specific angle and non-contact signal transmission in a specific direction. The present invention relates to a micro nano structure sensitive to a laser beam in a specific direction. The micro nano structure comprises a substrate, wherein an insulating layer is fixedly arranged on the substrate; and two silicon wires, which are parallel to each other and are in the same shape and size, are arranged on the insulating layer, and wires are led out from two ends of each silicon wire and are connected to potential meters. When laser light irradiates the silicon wires, a near field coupling effect is generated between the silicon wires and the substrate; and one silicon wire close to a laser light source is completely inhibited, and the other silicon wire far away from the laser light source maintains the brightness thereof. By means of present invention, a laser signal at a certain specific angle can be accurately detected, and non contact signal transmission can be carried out in a specific direction.