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Quantifying Mixing using Magnetic Resonance Imaging
Published on: January 25, 2012
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In-depth study on resonant tunneling for subwavelength imaging
Md Anzan-Uz-Zaman1,2, Kyungjun Song1, EunJoong Lee1
1Department of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon, (34103) 156, Republic of Korea.
Scientific Reports
|October 21, 2018
Summary
Researchers discovered new frequency bands for subwavelength imaging using resonant tunneling. This expands imaging capabilities beyond previously known limits, achieving high resolution in both conventional and novel frequency regions.
Area of Science:
- Physics
- Materials Science
- Optics
Background:
- Subwavelength imaging is crucial for nanoscale applications.
- Existing resonant tunneling theory limits imaging frequencies.
- Exploration of higher frequency bands for imaging is needed.
Purpose of the Study:
- To identify and explore new frequency bands for subwavelength imaging.
- To investigate the influence of lattice periodicity on image resolution.
- To validate theoretical predictions through numerical and experimental methods.
Main Methods:
- Analytical analysis of resonant tunneling over a wide frequency range.
- Numerical simulations to verify theoretical findings.
- Experimental verification of subwavelength imaging at new frequencies.
Main Results:
- Identified previously unexplored higher frequency bands for subwavelength imaging.
- Achieved a resolution of λ/9.5 in the conventional region.
- Attained a resolution of λ/2.45 in the newly identified higher frequency band.
- Demonstrated that reducing lattice periodicity enhances image resolution.
Conclusions:
- The resonant tunneling method can be extended to higher frequencies for subwavelength imaging.
- Lattice periodicity significantly impacts image resolution.
- This work opens new avenues for high-resolution subwavelength imaging techniques.
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