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A novel approach to Fabry–Pérot-resonance-based lens and demonstrating deep-subwavelength imaging
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A novel approach to Fabry–Pérot-resonance-based lens and demonstrating deep-subwavelength imaging
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Journal Article
A novel approach to Fabry–Pérot-resonance-based lens and demonstrating deep-subwavelength imaging
2020
Overview
During our research, we explored a novel way to represent subwavelength imaging and derived a transmission equation to explicate the FP (Fabry
–
Pérot) resonance phenomena. Subsequently, using analysis and observation, we performed deep-subwavelength imaging. Both numerically and experimentally, imaging with super-resolution was achieved at deep subwavelength scale of λ/56.53 with a lens thickness 212 mm. Our results also showed that by increasing lens thickness, higher resolution can be achieved. Moreover, via a single source study, we showed the full width at half maximum range and predicted the size of smallest detectable object. We also observed that with a greater lens thickness, finer features could be detected. These findings may open a new route in near-field imaging for practical applications such as biometric sensors, ultrasonic medical equipment, and non-destructive testing.
Publisher
Nature Publishing Group UK,Nature Publishing Group
