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Conference Paper: Demonstration of minute continuous-wave triggered supercontinuum generation at 1 µm for high-speed biophotonic applications

TitleDemonstration of minute continuous-wave triggered supercontinuum generation at 1 µm for high-speed biophotonic applications
Authors
KeywordsContinuous-wave triggered supercontiuum
Ultra-fast imaging
Spectroscopy
Dispersive Fourier transform
Temporal stability
Real-time bio-imaging
Issue Date2012
PublisherSociety of Photo-Optical Instrumentation Engineers (SPIE). The Journal's web site is located at http://www.spie.org/app/Publications/index.cfm?fuseaction=proceedings
Citation
SPIE Photonics West 2012, San Francisco, CA., 21-26 January 2012. In Proceedings of SPIE, 2012, v. 8240, article no. 82400O, p. 82400O-1-82400O-7 How to Cite?
AbstractUltra-broadband supercontinuum (SC) at 1-μm wavelength is regarded as diagnostics window in bio-photonics due to its large penetration depth in tissues and less Rayleigh scattering. Dispersive Fourier transform (DFT) is an important technique to realize the high-speed, ultra-fast and high-throughput spectroscopy. Thus, a stable light source with good temporal stability plays an important role in the bio-imaging and spectroscopy applications. We here demonstrate stabilized and enhanced SC generation at 1 μm by a minute continuous-wave (CW) triggering scheme. By introducing a weak CW (200,000 times weaker than the pump), a significant broadening in the SC bandwidth and an improvement in the temporal stability can be obtained. Over 8 dB gain is achieved in both blue and red edges and the SC spectrum can span from 900 nm to over 1300 nm with the CW trigger. We present the CW-triggered SC capability of enabling highspeed spectroscopy based on DFT at 1 μm. In regards to the performance of DFT, the wavelength-time mapping fluctuation reduced by 50% which is an indication of the improvement of the temporal stability. This triggering scheme allows, for the first time, 1-μm DFT at a spectral acquisition rate of 20 MHz with good temporal stability - paving the way toward realizing practical real-time, ultrafast biomedical spectroscopy and imaging.
DescriptionNonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI
Persistent Identifierhttp://hdl.handle.net/10722/165279
ISSN
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorQiu, Yen_US
dc.contributor.authorZhang, Cen_US
dc.contributor.authorWong, KKYen_US
dc.contributor.authorTsia, KKen_US
dc.date.accessioned2012-09-20T08:16:38Z-
dc.date.available2012-09-20T08:16:38Z-
dc.date.issued2012en_US
dc.identifier.citationSPIE Photonics West 2012, San Francisco, CA., 21-26 January 2012. In Proceedings of SPIE, 2012, v. 8240, article no. 82400O, p. 82400O-1-82400O-7en_US
dc.identifier.issn0277-786X-
dc.identifier.urihttp://hdl.handle.net/10722/165279-
dc.descriptionNonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI-
dc.description.abstractUltra-broadband supercontinuum (SC) at 1-μm wavelength is regarded as diagnostics window in bio-photonics due to its large penetration depth in tissues and less Rayleigh scattering. Dispersive Fourier transform (DFT) is an important technique to realize the high-speed, ultra-fast and high-throughput spectroscopy. Thus, a stable light source with good temporal stability plays an important role in the bio-imaging and spectroscopy applications. We here demonstrate stabilized and enhanced SC generation at 1 μm by a minute continuous-wave (CW) triggering scheme. By introducing a weak CW (200,000 times weaker than the pump), a significant broadening in the SC bandwidth and an improvement in the temporal stability can be obtained. Over 8 dB gain is achieved in both blue and red edges and the SC spectrum can span from 900 nm to over 1300 nm with the CW trigger. We present the CW-triggered SC capability of enabling highspeed spectroscopy based on DFT at 1 μm. In regards to the performance of DFT, the wavelength-time mapping fluctuation reduced by 50% which is an indication of the improvement of the temporal stability. This triggering scheme allows, for the first time, 1-μm DFT at a spectral acquisition rate of 20 MHz with good temporal stability - paving the way toward realizing practical real-time, ultrafast biomedical spectroscopy and imaging.-
dc.languageengen_US
dc.publisherSociety of Photo-Optical Instrumentation Engineers (SPIE). The Journal's web site is located at http://www.spie.org/app/Publications/index.cfm?fuseaction=proceedings-
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.rightsProceedings of SPIE - The International Society for Optical Engineering. Copyright © Society of Photo-Optical Instrumentation Engineers (SPIE).-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectContinuous-wave triggered supercontiuum-
dc.subjectUltra-fast imaging-
dc.subjectSpectroscopy-
dc.subjectDispersive Fourier transform-
dc.subjectTemporal stability-
dc.subjectReal-time bio-imaging-
dc.titleDemonstration of minute continuous-wave triggered supercontinuum generation at 1 µm for high-speed biophotonic applicationsen_US
dc.typeConference_Paperen_US
dc.identifier.emailQiu, Y: yiqiu@hku.hken_US
dc.identifier.emailWong, KKY: kywong04@hkucc.hku.hken_US
dc.identifier.emailTsia, KK: tsia@hku.hk-
dc.identifier.authorityWong, KKY=rp00189en_US
dc.identifier.authorityTsia, KK=rp01389en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1117/12.907743-
dc.identifier.scopuseid_2-s2.0-84859729420-
dc.identifier.hkuros209704en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84859729420&selection=ref&src=s&origin=recordpage-
dc.identifier.volume8240-
dc.identifier.spage82400O-1-
dc.identifier.epage82400O-7-
dc.identifier.isiWOS:000302636900016-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridQiu, Y=47561830000-
dc.identifier.scopusauthoridZhang, C=36538359400-
dc.identifier.scopusauthoridWong, KKY=54901596100-
dc.identifier.scopusauthoridTsia, KK=6506659574-

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