Single-shot extended-object super-oscillatory imaging
A point-spread function (PSF) that locally oscillates faster than its highest Fourier component can reconstruct the sub-diffraction information of objects in the far field without any near-field placements to break the diffraction limit. However, the spatial capacity of such super-oscillatory (SO) P...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2023-05-01
|
| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0146174 |
| _version_ | 1797772831411404800 |
|---|---|
| author | Haitang Yang Yitian Liu George V. Eleftheriades |
| author_facet | Haitang Yang Yitian Liu George V. Eleftheriades |
| author_sort | Haitang Yang |
| collection | DOAJ |
| description | A point-spread function (PSF) that locally oscillates faster than its highest Fourier component can reconstruct the sub-diffraction information of objects in the far field without any near-field placements to break the diffraction limit. However, the spatial capacity of such super-oscillatory (SO) PSFs for carrying sub-diffraction information is restricted by high sidelobes surrounding a desired region of interest (ROI). Here, we propose generalized periodic SO masks without optimization to push the ROI borders away for imaging extended objects. Our imaging experiments without any image post-processing demonstrate single-shot extended-object SO imaging with extended ROIs more than ten times the size of some typical ROIs (around 2λ/NA) and a sub-wavelength resolution of 0.49λ. The SO sub-wavelength resolution (0.7 times the diffraction limit) remains robust to additive noise with a signal-to-noise ratio above 13 dB. Our method is applicable to lifting the ROI size restrictions for various SO applications such as high-density data storage, acoustic SO imaging, super-narrow frequency conversion, and temporal SO pulses. |
| first_indexed | 2024-03-12T21:57:34Z |
| format | Article |
| id | doaj.art-f5ce1a82f86142019204c350efeaa92b |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-03-12T21:57:34Z |
| publishDate | 2023-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-f5ce1a82f86142019204c350efeaa92b2023-07-25T15:16:16ZengAIP Publishing LLCAPL Photonics2378-09672023-05-0185056103056103-1210.1063/5.0146174Single-shot extended-object super-oscillatory imagingHaitang Yang0Yitian Liu1George V. Eleftheriades2The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaThe Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaThe Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaA point-spread function (PSF) that locally oscillates faster than its highest Fourier component can reconstruct the sub-diffraction information of objects in the far field without any near-field placements to break the diffraction limit. However, the spatial capacity of such super-oscillatory (SO) PSFs for carrying sub-diffraction information is restricted by high sidelobes surrounding a desired region of interest (ROI). Here, we propose generalized periodic SO masks without optimization to push the ROI borders away for imaging extended objects. Our imaging experiments without any image post-processing demonstrate single-shot extended-object SO imaging with extended ROIs more than ten times the size of some typical ROIs (around 2λ/NA) and a sub-wavelength resolution of 0.49λ. The SO sub-wavelength resolution (0.7 times the diffraction limit) remains robust to additive noise with a signal-to-noise ratio above 13 dB. Our method is applicable to lifting the ROI size restrictions for various SO applications such as high-density data storage, acoustic SO imaging, super-narrow frequency conversion, and temporal SO pulses.http://dx.doi.org/10.1063/5.0146174 |
| spellingShingle | Haitang Yang Yitian Liu George V. Eleftheriades Single-shot extended-object super-oscillatory imaging APL Photonics |
| title | Single-shot extended-object super-oscillatory imaging |
| title_full | Single-shot extended-object super-oscillatory imaging |
| title_fullStr | Single-shot extended-object super-oscillatory imaging |
| title_full_unstemmed | Single-shot extended-object super-oscillatory imaging |
| title_short | Single-shot extended-object super-oscillatory imaging |
| title_sort | single shot extended object super oscillatory imaging |
| url | http://dx.doi.org/10.1063/5.0146174 |
| work_keys_str_mv | AT haitangyang singleshotextendedobjectsuperoscillatoryimaging AT yitianliu singleshotextendedobjectsuperoscillatoryimaging AT georgeveleftheriades singleshotextendedobjectsuperoscillatoryimaging |