Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy
The resolution of optical imaging devices is ultimately limited by the diffraction of light. To circumvent this limit, modern super-resolution microscopy techniques employ active interaction with the object by exploiting its optical nonlinearities, nonclassical properties of the illumination beam, o...
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| Eará dahkkit: | |
| Materiálatiipa: | Oahppočájánas |
| Giella: | English |
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2021
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| Fáttát: |
| _version_ | 1826307973412028416 |
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| author | Pushkina, A |
| author2 | Lvovsky, A |
| author_facet | Lvovsky, A Pushkina, A |
| author_sort | Pushkina, A |
| collection | OXFORD |
| description | The resolution of optical imaging devices is ultimately limited by the diffraction of light. To circumvent this limit, modern super-resolution microscopy techniques employ active interaction with the object by exploiting its optical nonlinearities, nonclassical properties of the illumination beam, or near-field probing. Thus, they are not applicable in areas where interaction is not possible, for example, in astronomy or non-invasive biological imaging. Far-field and linear-optical super-resolution technique based on passive analysis of light coming from the object would cover these gaps. This thesis presents the first proof-of-principle demonstration of such a technique for general objects. It works by accessing information about spatial correlations of the image optical field and, hence, about the object itself via measuring projections into Hermite-Gaussian transverse spatial modes. In theory, the resolution of the technique scales as the inverse square root of the number of modes in each transverse dimension. With a basis of 21 spatial modes in both dimensions (21^2 = 441 modes), this experimental work demonstrates two-dimensional imaging with twofold resolution enhancement beyond the diffraction limit.
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| first_indexed | 2024-03-07T07:12:41Z |
| format | Thesis |
| id | oxford-uuid:ac0b5a10-1e80-44f4-932b-df383018e868 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:12:41Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | oxford-uuid:ac0b5a10-1e80-44f4-932b-df383018e8682022-06-30T13:57:48ZFar-field linear optical super-resolution imaging via Hermite-Gaussian microscopyThesishttp://purl.org/coar/resource_type/c_db06uuid:ac0b5a10-1e80-44f4-932b-df383018e868Quantum statisticsOpticsEnglishHyrax Deposit2021Pushkina, ALvovsky, AThe resolution of optical imaging devices is ultimately limited by the diffraction of light. To circumvent this limit, modern super-resolution microscopy techniques employ active interaction with the object by exploiting its optical nonlinearities, nonclassical properties of the illumination beam, or near-field probing. Thus, they are not applicable in areas where interaction is not possible, for example, in astronomy or non-invasive biological imaging. Far-field and linear-optical super-resolution technique based on passive analysis of light coming from the object would cover these gaps. This thesis presents the first proof-of-principle demonstration of such a technique for general objects. It works by accessing information about spatial correlations of the image optical field and, hence, about the object itself via measuring projections into Hermite-Gaussian transverse spatial modes. In theory, the resolution of the technique scales as the inverse square root of the number of modes in each transverse dimension. With a basis of 21 spatial modes in both dimensions (21^2 = 441 modes), this experimental work demonstrates two-dimensional imaging with twofold resolution enhancement beyond the diffraction limit. |
| spellingShingle | Quantum statistics Optics Pushkina, A Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy |
| title | Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy |
| title_full | Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy |
| title_fullStr | Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy |
| title_full_unstemmed | Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy |
| title_short | Far-field linear optical super-resolution imaging via Hermite-Gaussian microscopy |
| title_sort | far field linear optical super resolution imaging via hermite gaussian microscopy |
| topic | Quantum statistics Optics |
| work_keys_str_mv | AT pushkinaa farfieldlinearopticalsuperresolutionimagingviahermitegaussianmicroscopy |