Meta-Optical Device Using Group III-V Nanocolumns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current meta-optical devices face challenges in manufacturing cost and efficiency, particularly in achieving high refractive indices and low extinction coefficients for visible and near-infrared wavelength regions, which limits their optical modulation capabilities and manufacturing process complexity.
Innovation Solution
The development of meta-optical devices using nano-structures formed from group III-V compound semiconductors like AlN, GaN, GaP, AlAs, and AlSb, with specific shape dimensions and refractive indices, arranged to control light phase and polarization, and a method involving sputtering and post-annealing processes to achieve low surface roughness and high refractive indices, reducing manufacturing costs and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional meta-structures are used to achieve high refractive indices and low extinction coefficients, then optical modulation capabilities are improved, but manufacturing cost and process complexity increase
Solution Approach 1:
The patent changes the material parameter by using group III-V compound semiconductors (AlN, GaN, GaP, AlAs, AlSb) with specific bandgap energies to achieve high refractive indices and low extinction coefficients in visible and near-infrared regions, resolving the optical performance requirement while maintaining manufacturability through standard semiconductor processing
Solution Approach 2:
The patent employs composite nanostructure designs combining group III-V compound semiconductor nanocolumns or nanorods with dielectric materials, creating meta-optical devices that achieve superior optical modulation capabilities through the synergistic properties of the composite materials while using conventional manufacturing techniques
2Reliability
If nano-structures with shape dimensions smaller than wavelength are used to control light phase and polarization, then optical modulation efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes self-organized nanocolumn or nanorod structures formed through conventional semiconductor growth processes that automatically achieve the required sub-wavelength dimensions and uniformity, eliminating the need for complex top-down lithography and reducing manufacturing precision requirements while maintaining high optical modulation efficiency
3Reliability
If group III-V compound semiconductors are used to achieve high light transmittance and refractive index, then optical performance is improved, but material selection and processing complexity increase
Solution Approach 1:
The patent demonstrates that group III-V compound semiconductors serve multiple functions simultaneously: they provide high refractive indices for light confinement, low extinction coefficients for high transmittance, and compatibility with standard semiconductor manufacturing processes, making them a universal material choice for meta-optical devices across visible and near-infrared wavelength regions
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
This approach enables meta-optical devices with improved optical modulation efficiency, reduced manufacturing burdens, and the ability to operate in visible and near-infrared wavelength regions with high light transmittance and refractive index, enhancing their applicability in optical devices.
Implementation Method 1
The forming the nano-material layer may be performed by using a sputtering process
Implementation Method 2
crystallizing the nano-material layer by post-annealing the nano-material layer
Implementation Method 3
crystallizing the nano-material layer by post-annealing the nano-material layer
Implementation Method 4
A refractive index of each of the plurality of nano-structures may be greater than a refractive index of the support layer
Data Source
AI summary
A meta-optical device and a method of manufacturing the same are provided. The method includes depositing a group III-V compound semiconductor on a substrate, forming an anti-oxidation layer, performing crystallization by using post annealing, removing the anti-oxidation layer, and manufacturing a meta-optical device by using patterning.