Light Diffraction Element Position Adjustment Structure
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Solution Overview
Problem
Inaccurate positioning of light diffraction elements in optical computing devices hinders advanced optical computing, as precise alignment is required to achieve predetermined computing outcomes, but existing methods fail to ensure such accuracy.
Innovation Solution
A light diffraction element configuration that includes a computing optical structure and a position adjustment optical structure, where the latter is formed outside the computing optical structure, allowing for independent adjustment of microcells to align with preceding or succeeding elements, using techniques like nanoimprinting and machine learning to set thickness and refractive indices for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a plurality of light diffraction elements are aligned to perform advanced optical computing, then optical computing functionality is improved, but positioning accuracy requirement increases
Solution Approach 1:
The light diffraction element is divided into two independent parts: a computing optical structure containing multiple microcells for optical computing, and a position adjustment optical structure for alignment. This segmentation allows each part to be optimized independently - the computing structure for computational functionality and the position adjustment structure for precise alignment, thereby resolving the contradiction between enhancing optical computing functionality and maintaining positioning accuracy.
Solution Approach 2:
The position adjustment optical structure acts as an intermediary component between the light diffraction element and the preceding or following element. It includes a first optical structure that forms an optical image and a second optical structure that changes the intensity distribution of the optical image, serving as a mediator to achieve precise positioning and alignment without affecting the core computing functionality.
2Manufacturing precision
If position adjustment optical structure is added outside computing optical structure, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The position adjustment optical structure and computing optical structure are merged into a single integrated light diffraction element. Both structures are formed on the same substrate and work together as one functional unit, allowing positioning adjustment without requiring a separate, standalone alignment device. This merging approach enhances positioning accuracy while minimizing the increase in overall device complexity.
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 positioning of light diffraction elements, reducing interference and ensuring precise alignment, thus facilitating advanced optical computing with higher accuracy and efficiency.
Implementation Method 1
a first position adjustment optical structure configured to form, on a second position adjustment optical structure, an optical image having a specific intensity distribution
Implementation Method 2
a second position adjustment optical structure configured to change, in accordance with a position of the light diffraction element, the intensity distribution of the optical image that has been formed by the first position adjustment optical structure
Implementation Method 3
a plurality of microcells each of which has an individually set thickness and that optically performs predetermined computing by causing mutual interference of light beams which have passed through the respective microcells
Implementation Method 4
Known is a light diffraction element that includes a plurality of microcells each of which has an individually set thickness and that optically performs predetermined computing by causing mutual interference of light beams which have passed through the respective microcells
Data Source
AI summary
A light diffraction element includes a computing optical structure constituted by microcells, and a position adjustment optical structure outside the computing optical structure.