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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.rightsCopyright 2012 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. This article is available online at https://doi.org/10.1117/12.907743-
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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