Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Manattayil, Jyothsna Konkada | - |
dc.contributor.author | Krishna, Lal A. S. | - |
dc.contributor.author | Kim, Hyunmin | - |
dc.contributor.author | Raghunathan, Varun | - |
dc.date.accessioned | 2023-12-26T18:13:48Z | - |
dc.date.available | 2023-12-26T18:13:48Z | - |
dc.date.created | 2022-07-11 | - |
dc.date.issued | 2022-05-09 | - |
dc.identifier.isbn | 9781510651647 | - |
dc.identifier.issn | 0277-786X | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/46852 | - |
dc.description.abstract | In this work we present experimental demonstration of focal-field engineering in infrared-sensitive third-order sum frequency generation (TSFG) microscopy by utilizing beam-shaping technique. Two photons of the input mid-infrared (MIR) beam at 3000 nm are upconverted to 615 nm in the presence of a single photon at 1040 nm through the TSFG process. The focal-field engineering scheme studied here improves optical resolution and contrast of the TSFG imaging. We observe best improvement of ~43 % in the central-lobe full-width half diameter with ~35% side-lobe strength of that of the central-lobe with the use of optimum phase-mask using isolated amorphous silicon (a-Si) nano disks as the sample. We compare the contrast enhancement between the experiments and simulations as a function of varying grating pitch and find good overall agreement between the two. In addition to annular phase masks, we also demonstrate edge contrast enhancement by imaging gratings with higher-order Hermite-Gaussian beams profile generated using horizontally partitioned 0- phase profile. © 2022 SPIE. | - |
dc.language | English | - |
dc.publisher | SPIE | - |
dc.title | Focal Field Engineered Infrared-sensitive Third-order Sum Frequency Generation Microscopy | - |
dc.type | Conference Paper | - |
dc.identifier.doi | 10.1117/12.2621764 | - |
dc.identifier.scopusid | 2-s2.0-85133135542 | - |
dc.identifier.bibliographicCitation | Biomedical Spectroscopy, Microscopy, and Imaging II 2022 | - |
dc.citation.conferencePlace | FR | - |
dc.citation.conferencePlace | Virtual | - |
dc.citation.title | Biomedical Spectroscopy, Microscopy, and Imaging II 2022 | - |
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