Aperture Layer Grooves Enhance Microscope Resolution
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Solution Overview
Problem
Conventional DIC microscopes are expensive, have limited lateral resolution due to diffraction limits, and require complex optical components, while existing darkfield imaging devices are costly and difficult to operate, making them unsuitable for efficient imaging of transparent biological specimens and requiring extensive training.
Innovation Solution
The development of surface wave assisted structures and systems, including aperture layers with grooves that induce surface waves to interfere with light, enhancing contrast and resolution through destructive interference, allowing for cost-effective and user-friendly imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional DIC microscopes are used to image transparent specimens, then phase contrast can be obtained, but the device complexity and cost increase significantly
Solution Approach 1:
The patent combines multiple optical functions (beam splitting, phase shifting, and imaging) into a single integrated aperture layer structure. The aperture layer simultaneously performs the functions of a beam splitter, phase shifter, and imaging element, eliminating the need for separate optical components and reducing overall system complexity while maintaining DIC imaging capabilities
Solution Approach 2:
The patent uses aperture arrays that create virtual images through controlled light interference. By positioning apertures at specific locations and using interference patterns, the system creates multiple virtual image copies that provide phase contrast information without requiring complex physical optical paths
2Measurement precision
If conventional DIC microscopes are used, then excellent phase contrast is achieved, but lateral resolution is limited by diffraction
Solution Approach 1:
The patent moves from conventional 2D optical imaging to 3D spatial encoding using aperture arrays. By utilizing the third dimension (depth/position of apertures in the aperture layer), the system achieves super-resolution capabilities that overcome diffraction limits while maintaining phase contrast through interference patterns
3Object-affected harmful factors
If existing darkfield imaging devices are used, then background light suppression is achieved, but the devices are costly and difficult to operate
Solution Approach 1:
The aperture layer structure automatically performs background light suppression through its geometric design. The specific arrangement and positioning of apertures create interference patterns that inherently block background light while allowing signal light to pass, eliminating the need for manual adjustment or complex operational procedures by the user
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 surface wave assisted systems improve imaging contrast and resolution, enabling efficient and cost-effective imaging of transparent specimens without the need for complex optical components or extensive training, while suppressing background light to enhance signal detection.
Implementation Method 1
a plurality of grooves around the aperture configured to generate an optical transfer function at the aperture by inducing a surface wave
Implementation Method 2
inducing a surface wave for interfering with transmission of light
Implementation Method 3
inducing a surface wave for destructively interfering with direct transmission of a uniform incident light field
Data Source
AI summary
A surface wave assisted system having an aperture layer with a surface and an aperture, and a plurality of grooves around the aperture. The plurality of grooves is configured to generate an optical transfer function at the aperture by inducing a surface wave for interfering with transmission of light of a range of spatial frequency.