Development of a rapid-scan fiber-integrated terahertz spectrometer
Date
2014Source Title
Optical and Quantum Electronics
Print ISSN
0306-8919
Publisher
Springer New York LLC
Volume
46
Issue
4
Pages
495 - 503
Language
English
Type
ArticleItem Usage Stats
216
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views
202
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Abstract
Scientists in terahertz (THz) wave technologies have benefited from the recent developments in ultrafast laser technologies and RF technologies and applied these new gained techniques into characterizing a wide variety of phenomena. Undoubtedly, the most successful of these applications has been in the development of time-domain terahertz spectroscopic and imaging systems which has been utilized in the characterization of dielectrics and semiconductors. This pulsed technique has allowed users to characterize dynamical behavior inside materials under illumination with picosecond resolution. Typically pump/probe or similar dynamical measurements require the use of amplified pulses derived from free-space solid state lasers in the μJ-mJ range and since interferometric techniques are typically used in pulsed measurements the measurement time of a THz spectrum can last at least tens of minutes. Better systems can be realized based on fiber laser technologies. Here we discuss the advantages of a THz spectrometer driven by an ultrafast Ytterbium doped fiber laser whose repetition rate can be tuned rapidly allowing for rapid dynamical measurements. The efficient gain medium, robust operation and compact design of the system opens up the possibility of exploring rapid detection of various materials as well as studying dynamical behavior using the high brightness source.
Keywords
Fiber laserRapid scan
TDS
THz
TRTS
Characterization
Dynamics
Fiber lasers
Interferometry
Spectrometers
Technology
Ultrafast lasers
Interferometric techniques
TDS
Terahertz spectrometer
THz
Ultrafast laser technology
Ytterbium-doped fiber lasers
Terahertz waves
Permalink
http://hdl.handle.net/11693/26603Published Version (Please cite this version)
http://dx.doi.org/10.1007/s11082-013-9794-xCollections
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