Comparative Holographic Imaging for Structural Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current holographic techniques, particularly in biological fields, are limited by the low information quality and quantity obtained from holograms, which restricts their analytical usefulness, especially for soft materials like proteins, due to the nature of soft materials and the limited information available from reconstructions.
Innovation Solution
The method involves acquiring multiple holograms of a sample at different electron beam energies and comparing them to determine atomic and structural information, leveraging energy-dependent elastic and inelastic scattering for enhanced detail, using an electron holography system with an emitter, detector, and controller to process and reconstruct images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple holograms are acquired at different electron beam energies, then the quantity and quality of information from the sample is improved, but the measurement time and complexity increase
Solution Approach 1:
The patent applies preliminary action by acquiring multiple holograms at different electron beam energies before performing the comparison analysis. The system collects all necessary data at varying energies (e.g., 80 keV, 120 keV, 160 keV) in advance, then processes them together to extract enhanced structural and molecular information. This approach allows comprehensive information gathering without requiring time-consuming sequential analysis of each energy level separately.
2Loss of information
If multiple holograms are acquired at different electron beam energies, then the quantity and quality of information from the sample is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by using a single electron holography system that can operate at multiple electron beam energies. The same emitter, sample stage, and detector assembly perform the multi-energy measurements, eliminating the need for separate specialized equipment for each energy level. This multi-functional approach increases information quantity while avoiding the complexity of multiple independent systems.
3Measurement precision
If multiple holograms are acquired at different electron beam energies, then atomic and structural information is enhanced, but the ease of operation decreases
Solution Approach 1:
The patent applies feedback by using the comparison results from multiple energy holograms to refine and enhance the atomic and structural information. The system iteratively processes holograms at different energies, comparing their differences to extract precise atomic positions and structural details that would be invisible in single-energy measurements. This feedback loop improves measurement precision while the automated comparison algorithms maintain operational simplicity.
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 more detailed structural and molecular information of the sample, including depth and atomic identification, by comparing holograms acquired at varying energies, overcoming the limitations of single-hologram analysis.
Implementation Method 1
leveraging energy-dependent elastic and inelastic scattering for enhanced detail
Implementation Method 2
leveraging energy-dependent elastic and inelastic scattering for enhanced detail
Implementation Method 3
An electron beam is directed toward a sample
Data Source
AI summary
Apparatuses and methods for comparative holographic imaging to improve structural and molecular information of reconstructions is disclosed herein. An example method at least includes acquiring a plurality of holograms of a sample, wherein each hologram of the plurality of holograms is acquired at a different electron beam energy, and determining atomic and structural information of the sample based at least on a comparison of at least two of the holograms of the plurality of holograms.