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- Publisher Website: 10.1364/OL.44.004634
- Scopus: eid_2-s2.0-85072784890
- PMID: 31568404
- WOS: WOS:000488503500003
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Article: Temporally structured illumination for ultrafast time-stretch microscopy
Title | Temporally structured illumination for ultrafast time-stretch microscopy |
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Authors | |
Keywords | Bandwidth limitation Electro-optic modulators High frequency components High quality images Sinusoidal patterns |
Issue Date | 2019 |
Publisher | Optical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3 |
Citation | Optics Letters, 2019, v. 44 n. 19, p. 4634-4637 How to Cite? |
Abstract | This work developed a temporally structured illumination scheme to conquer the detector bandwidth limitation that is increasingly becoming a stumbling block of ultrafast single-pixel measurement. Inspired by structured illumination microscopy and space-time duality, an electro-optic modulator resembling the temporal counterpart of a spatial grating is used to impart a sinusoidal pattern onto the time-stretch signal before detection. Consequently, the detector bandwidth is equivalently doubled based on three measurements and a subsequent reconstruction, thereby capturing the high-frequency components originally beyond the detector bandwidth. As a proof of concept, this method is applied to an ultrafast single-pixel imaging modality, the time-stretch microscopy, to verify its capability to surpass the resolution limit imposed by the detector bandwidth. High-quality images with ∼4.0 μm spatial resolution are acquired at ∼30 MHz frame rates by merely half of the detector bandwidth, compared to the traditional system. This Letter provides a simple and economical solution for high-speed signal acquisition, which is demanded in a variety of applications, ranging from ultrafast imaging to single-shot spectroscopy. |
Persistent Identifier | http://hdl.handle.net/10722/289709 |
ISSN | 2023 Impact Factor: 3.1 2023 SCImago Journal Rankings: 1.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Duan, Y | - |
dc.contributor.author | Dong, X | - |
dc.contributor.author | Yang, N | - |
dc.contributor.author | Zhang, C | - |
dc.contributor.author | Wong, KKY | - |
dc.contributor.author | Zhang, X | - |
dc.date.accessioned | 2020-10-22T08:16:21Z | - |
dc.date.available | 2020-10-22T08:16:21Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Optics Letters, 2019, v. 44 n. 19, p. 4634-4637 | - |
dc.identifier.issn | 0146-9592 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289709 | - |
dc.description.abstract | This work developed a temporally structured illumination scheme to conquer the detector bandwidth limitation that is increasingly becoming a stumbling block of ultrafast single-pixel measurement. Inspired by structured illumination microscopy and space-time duality, an electro-optic modulator resembling the temporal counterpart of a spatial grating is used to impart a sinusoidal pattern onto the time-stretch signal before detection. Consequently, the detector bandwidth is equivalently doubled based on three measurements and a subsequent reconstruction, thereby capturing the high-frequency components originally beyond the detector bandwidth. As a proof of concept, this method is applied to an ultrafast single-pixel imaging modality, the time-stretch microscopy, to verify its capability to surpass the resolution limit imposed by the detector bandwidth. High-quality images with ∼4.0 μm spatial resolution are acquired at ∼30 MHz frame rates by merely half of the detector bandwidth, compared to the traditional system. This Letter provides a simple and economical solution for high-speed signal acquisition, which is demanded in a variety of applications, ranging from ultrafast imaging to single-shot spectroscopy. | - |
dc.language | eng | - |
dc.publisher | Optical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3 | - |
dc.relation.ispartof | Optics Letters | - |
dc.rights | Optics Letters. Copyright © Optical Society of America. | - |
dc.rights | © XXXX [year] Optical Society of America]. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. | - |
dc.subject | Bandwidth limitation | - |
dc.subject | Electro-optic modulators | - |
dc.subject | High frequency components | - |
dc.subject | High quality images | - |
dc.subject | Sinusoidal patterns | - |
dc.title | Temporally structured illumination for ultrafast time-stretch microscopy | - |
dc.type | Article | - |
dc.identifier.email | Wong, KKY: kywong@eee.hku.hk | - |
dc.identifier.authority | Wong, KKY=rp00189 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1364/OL.44.004634 | - |
dc.identifier.pmid | 31568404 | - |
dc.identifier.scopus | eid_2-s2.0-85072784890 | - |
dc.identifier.hkuros | 316973 | - |
dc.identifier.volume | 44 | - |
dc.identifier.issue | 19 | - |
dc.identifier.spage | 4634 | - |
dc.identifier.epage | 4637 | - |
dc.identifier.isi | WOS:000488503500003 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0146-9592 | - |