A tunable continuous wave (CW) and short-pulse optical source for THz brain imaging applications

Bakopoulos, P; Karanasiou, I; Pleros, N; Zakynthinos, P; Uzunoglu, N; Avramopoulos, H

dc.contributor.author	Bakopoulos, P	en
dc.contributor.author	Karanasiou, I	en
dc.contributor.author	Pleros, N	en
dc.contributor.author	Zakynthinos, P	en
dc.contributor.author	Uzunoglu, N	en
dc.contributor.author	Avramopoulos, H	en
dc.date.accessioned	2014-03-01T01:29:44Z
dc.date.available	2014-03-01T01:29:44Z
dc.date.issued	2009	en
dc.identifier.issn	0957-0233	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19338
dc.subject	Brain imaging	en
dc.subject	Difference frequency generation	en
dc.subject	Supercontinuum generation	en
dc.subject	THz imaging	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.other	Brain imaging	en
dc.subject.other	Brain imaging techniques	en
dc.subject.other	Continuous waves	en
dc.subject.other	Difference frequency generation	en
dc.subject.other	Fiber Fabry-Perot filter	en
dc.subject.other	Frequency tunability	en
dc.subject.other	Highly nonlinear	en
dc.subject.other	Optical source	en
dc.subject.other	Optical wavelength	en
dc.subject.other	Roadmap	en
dc.subject.other	Short-pulse	en
dc.subject.other	Supercontinuum generation	en
dc.subject.other	Supercontinuum generations	en
dc.subject.other	THz frequencies	en
dc.subject.other	THz imaging	en
dc.subject.other	THz radiation	en
dc.subject.other	THz sources	en
dc.subject.other	Imaging techniques	en
dc.subject.other	Optical fibers	en
dc.subject.other	Optoelectronic devices	en
dc.subject.other	Technological forecasting	en
dc.subject.other	Optical frequency conversion	en
dc.title	A tunable continuous wave (CW) and short-pulse optical source for THz brain imaging applications	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0957-0233/20/10/104001	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0957-0233/20/10/104001	en
heal.identifier.secondary	104001	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	We demonstrate recent advances toward the development of a novel 2D THz imaging system for brain imaging applications both at the macroscopic and at the bimolecular level. A frequency-synthesized THz source based on difference frequency generation between optical wavelengths is presented, utilizing supercontinuum generation in a highly nonlinear optical fiber with subsequent spectral carving by means of a fiber Fabry-Perot filter. Experimental results confirm the successful generation of THz radiation in the range of 0.2-2 THz, verifying the enhanced frequency tunability properties of the proposed system. Finally, the roadmap toward capturing functional brain information by exploiting THz imaging technologies is discussed, outlining the unique advantages offered by THz frequencies and their complementarity with existing brain imaging techniques. © 2009 IOP Publishing Ltd.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Measurement Science and Technology	en
dc.identifier.doi	10.1088/0957-0233/20/10/104001	en
dc.identifier.isi	ISI:000269874900002	en
dc.identifier.volume	20	en
dc.identifier.issue	10	en