Hollow EM Waveguide With Non-Metallic Walls for Low-Loss Quantum Sensing
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Solution Overview
Problem
Existing quantum-based sensors with metallic interior walls in hollow electromagnetic waveguides are costly and face challenges in maintaining signal-to-noise ratio (SNR) due to high ohmic losses and chemical reactions, while non-metallic alternatives suffer from increased losses and reduced SNR.
Innovation Solution
Designing a quantum-based sensor with non-metallic interior walls using highly doped silicon wafers and strategically doping internal layers, combined with external metallization and electronic band gap structures to manage electromagnetic fields, reducing ohmic losses and enhancing SNR.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If metallic interior walls are used in hollow electromagnetic waveguide, then conductivity and low ohmic loss are achieved, but production cost increases significantly
Solution Approach 1:
The patent applies local quality by selectively depositing metallic layers only on specific surfaces that require electromagnetic shielding and conductivity, rather than coating all interior surfaces. The metallic layers are applied to exterior surfaces of the waveguide structure, creating localized conductive paths that reduce ohmic loss while minimizing material usage and production cost.
Solution Approach 2:
The patent employs composite materials by combining metallic layers with non-metallic waveguide structures. This composite approach allows the structure to benefit from both the conductivity and low ohmic loss of metals and the cost-effectiveness and ease of manufacture of non-metallic materials, achieving a balanced solution to the technical contradiction.
2Reliability
If metallic interior walls are used in hollow electromagnetic waveguide, then electromagnetic field confinement is improved, but chemical reactions with gas in cavity occur
Solution Approach 1:
The patent segments the waveguide structure into distinct metallic and non-metallic regions. The metallic layers are confined to specific exterior surfaces for electromagnetic field confinement, while the interior cavity surfaces remain non-metallic to prevent chemical reactions with the gas, thus resolving the contradiction between field confinement and chemical stability.
Solution Approach 2:
The patent introduces an intermediary approach by using non-metallic interior surfaces as a barrier between the electromagnetic field and the gas, eliminating direct contact and potential chemical reactions. Simultaneously, metallic layers on exterior surfaces serve as intermediaries for maintaining electromagnetic field confinement without compromising gas compatibility.
3Ease of manufacture
If non-metallic interior walls are used in hollow electromagnetic waveguide, then production cost decreases and chemical reactions are avoided, but ohmic loss increases and SNR deteriorates
Solution Approach 1:
The patent applies local quality by strategically positioning metallic layers on exterior surfaces of the waveguide structure where they are most effective for reducing ohmic loss, while maintaining non-metallic interior surfaces for cost-effectiveness and chemical stability. This localized metallic coating minimizes energy loss without incurring the full cost of complete metallic construction.
Solution Approach 2:
The patent employs composite materials by integrating metallic and non-metallic components in a hybrid waveguide structure. The metallic layers provide necessary conductivity and low ohmic loss properties, while the non-metallic portions maintain cost-effectiveness and chemical inertness, achieving an optimal balance between opposing requirements.
4Object-affected harmful factors
If non-metallic interior walls are used in hollow electromagnetic waveguide, then chemical reactions with gas are prevented, but signal-to-noise ratio decreases
Solution Approach 1:
The patent introduces an intermediary approach by using non-metallic interior surfaces as a protective barrier that prevents chemical reactions between the waveguide and the gas, while metallic layers on exterior surfaces serve as intermediaries for maintaining electromagnetic field confinement and signal integrity, thus preserving signal-to-noise ratio without compromising chemical stability.
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 non-metallic interior walls reduce production costs and maintain sufficient SNR by minimizing electromagnetic losses, ensuring compliance with target design specifications.
Implementation Method 1
the first silicon wafer layer 106 and the second silicon wafer layer 114 may be uniformly or non-uniformly doped with a dopant to a conductivity that satisfies a target design specification for the hollow EM waveguide 340
Implementation Method 2
a first metallic layer 302 and a second metallic layer 328, where the first metallic layer 302 and the second metallic layer 328 may be formed from the same material or from different materials
Data Source
AI summary
A quantum-based sensor includes a hollow electromagnetic (EM) waveguide having non-metallic layers and external metallic layers. The hollow EM waveguide encloses a gas having a pressure that is less than a threshold pressure, and all interior surfaces of the hollow EM waveguide in contact with the gas are non-metallic.