Single-Lobe Electromagnetic Wave Device Using Contact Area Height Control
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Solution Overview
Problem
Current technologies face challenges in forming electromagnetic wave patterns, particularly in achieving a mastered beam shape with a single lobe and optimal spread angle for applications such as augmented and virtual reality, integrated optical sensors, and light communication systems.
Innovation Solution
A device with a contact area of specific geometry, where the height of the contact area is less than 20% greater than the critical height, generates an outgoing electromagnetic wave with a single lobe when illuminated by an incoming wave. This device comprises a first material of lower refractive index and a second material of higher refractive index, allowing for the estimation of the refractive index of a fluid based on the characteristics of the outgoing wave.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional focusing devices are used, then electromagnetic wave patterns can be formed, but the beam shape cannot be mastered with a single lobe and optimal spread angle
Solution Approach 1:
The patent applies parameter changes by precisely controlling the height of the contact area between two materials with different refractive indices. By setting the height to be less than 20% greater than the critical height (h < 1.2 × hc), the device achieves single-lobe beam formation with optimal spread angle. This parameter optimization resolves the contradiction between forming a mastered beam shape and achieving precise single-lobe manufacturing.
2Quantity of substance
If the height of the contact area is increased, then more material is available for wave generation, but multiple secondary lobes appear instead of a single lobe
Solution Approach 1:
The patent identifies and optimizes the critical parameter of contact area height. By establishing that h < 1.2 × hc, the invention finds the optimal balance between having sufficient material quantity for effective wave generation and maintaining the single-lobe shape requirement. This parameter threshold resolves the contradiction between quantity and shape.
3Area of moving object
If the spread angle of the beam is increased, then the beam covers a wider area, but the deviation angle and beam precision are compromised
Solution Approach 1:
The patent achieves optimal beam characteristics by controlling the contact area height parameter. This single parameter optimization simultaneously determines both the spread angle and deviation angle, providing a mastered beam shape with known and controlled angular characteristics. The parameter h < 1.2 × hc ensures both adequate coverage and precise angular control.
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
The device effectively forms a single-lobe electromagnetic wave pattern, enhancing the accuracy of refractive index estimation and enabling applications such as trapping or moving nano-particles, and focusing incoming waves towards a focal point.
Implementation Method 1
a first part of a first material having a first refractive index n1 and a second part of a second material having a second refractive index n2 higher than n1
Implementation Method 2
When the device is illuminated by an incoming electromagnetic wave, an outgoing electromagnetic wave (or jet wave) is generated at the level of the contact area
Data Source
Figure 1a~1b
Figure 2~7
Figure 3a~5c
AI summary
A device (200) is proposed comprising a first part (101) of a first material having a first refractive index n1 and a second part (102) of a second material having a second refractive index n2 higher than n1. Such device further comprises at least one contact area (110) in between the first and second parts, radiating an outgoing electromagnetic wave (100o) when the device is illuminated by an incoming electromagnetic wave (100i). A projection of the at least one contact area along a direction of propagation of the incoming electromagnetic wave has a non-vanishing height lower than 1.2 times a critical height equal to a wavelength in vacuum of the incoming electromagnetic wave divided by the difference between the second refractive index n2 and the first refractive index n1.