Copper-Doped SiO2 Thin Films for Infrared Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current formation fluid analysis tools face limitations in accuracy and cost due to the need for multiple thin film layers to achieve optimal absorption at specific wavelengths, which can lead to drift issues and increased complexity.
Innovation Solution
The use of a single or fewer layers of silicon dioxide (SiO2) thin films doped with copper (Cu) or other attenuating materials to enhance absorption in the infrared region from 2500 to 4700 nanometers, allowing for improved sensitivity and accuracy while reducing the number of layers required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple thin film layers are used to achieve optimal absorption at specific wavelengths, then absorption accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple thin film layers into a single thin film layer by applying a foreign or attenuating material (such as copper) to the silicon dioxide thin film. This merging approach maintains the absorption accuracy of multiple layers while reducing device complexity and cost.
Solution Approach 2:
The patent uses composite materials by applying a foreign or attenuating material (e.g., copper) to the silicon dioxide thin film. This composite structure achieves the absorption properties of multiple layers through material composition rather than structural complexity.
2Measurement precision
If multiple thin film layers are used to achieve optimal absorption, then absorption accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple thin film layers into a single thin film layer by applying a foreign or attenuating material (such as copper) to the silicon dioxide thin film. This merging approach maintains the absorption accuracy of multiple layers while reducing device complexity and cost.
Solution Approach 2:
The patent employs cost-effective materials such as copper as the foreign or attenuating material applied to the thin film. These materials provide the necessary absorption properties at lower cost compared to traditional multi-layer configurations.
3Measurement precision
If multiple thin film layers are used, then absorption coverage is improved, but reliability decreases due to drift issues
Solution Approach 1:
The patent combines multiple thin film layers into a single thin film layer by applying a foreign or attenuating material (such as copper) to the silicon dioxide thin film. This merging approach maintains the absorption accuracy of multiple layers while reducing device complexity and cost.
Solution Approach 2:
The patent changes the material parameters by introducing foreign or attenuating materials (e.g., copper) with specific optical properties to the thin film. This parameter change achieves the desired absorption coverage while improving reliability through a simpler, more stable structure.
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 provides enhanced sensitivity, accuracy, and flexibility in fluid analysis while lowering costs by enabling better detection of fluid properties with a simplified optical element design.
Implementation Method 1
the one or more thin film layers are tuned for absorption in a spectral region, the spectral region comprising a range of wavelengths of 2500 to 4700 nanometers
Data Source
AI summary
An optical element may be fabricated by applying foreign or attenuating material, for example, a copper material or a material that includes copper, to a silicon dioxide thin film to form a layer that exhibits extraordinary optical absorption in the infrared wavelength region of at or about 2500-4700 nanometers. The foreign material may comprise or include a transition metal. The optical element exhibits increased accuracy and sensitivity in the infrared wavelength region of at or about 2500-4700 nanometers. The at or about 2500-4700 nanometers absorption property of the optical element can be selectively tuned to any region within this at or about 2500-4700 nanometers wavelength region. The optical element may comprise multiple layers of varying thicknesses to further tune the optical element to one or more spectral bands. Such an optical element may be utilized in a formation fluid analysis tool or an eye protection device.