All-semiconductor laser driven terahertz time-domain spectrometer

Jördens, C.; Schlauch, T.; Li, M.; Hofmann, Martin R.; Bieler, Mark; Koch, Martin

doi:10.1007/s00340-008-3210-4

Cited by 28 publications

(14 citation statements)

References 28 publications

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“…9 THz-transient and THz spectrum obtained by using the femtosecond diode laser system shown in Fig. 8 [33]. Therefore, Brenner et al have suggested a different source for QTDS systems which is based on the FTECAL geometry shown in Fig.…”

Section: Broadband Thz Systemsmentioning

confidence: 99%

“…Figure 9 shows the measured THz transient and the corresponding THz spectrum. The spectrum extends up to 1.4 THz [33].…”

Section: Broadband Thz Systemsmentioning

confidence: 99%

“…Accordingly, concepts are required to transfer the NIR laser diode emission into the THz range. In the past decade, different concepts have been developed for the generation of continuous wave THz radiation [32] as well as pulsed THz radiation [33] with NIR diode lasers. All relevant concepts operate at room temperature.…”

Section: Introductionmentioning

confidence: 99%

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Semiconductor Diode Lasers for Terahertz Technology

Brenner

Friedrich

Hofmann

2011

J Infrared Milli Terahz Waves

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We discuss different concepts for generating terahertz (THz) radiation with semiconductor diode lasers. Photomixing enables the generation of continuous wave THz radiation by difference frequency generation of two lasers or of two-colour lasers. Pulsed THz radiation for time domain THz spectroscopy is generated with modelocked diode laser systems including amplification and chirp compression. Finally, we analyse the concept of quasi time domain spectroscopy based on broadband diode laser systems.

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Section: Broadband Thz Systemsmentioning

confidence: 99%

“…Figure 9 shows the measured THz transient and the corresponding THz spectrum. The spectrum extends up to 1.4 THz [33].…”

Section: Broadband Thz Systemsmentioning

confidence: 99%

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Semiconductor Diode Lasers for Terahertz Technology

Brenner

Friedrich

Hofmann

2011

J Infrared Milli Terahz Waves

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“…Typical lasers are Ti:S lasers, based on a complex design and very expensive, or mode-locked diode lasers. The latter were presented generating 600 fs pulses [279], leading to a broadband spectrum up to 1.4 THz [280]. Within the biomedical field such pulsed terahertz sources have been used for the in-vitro detection of skin cancer, breast tumors or colon cancer [281][282][283][284][285][286].…”

Section: Diode Laser Systems Emitting Continuous Wave Terahertz Radiamentioning

confidence: 99%

Diode laser based light sources for biomedical applications

Müller

Marschall

Jensen

et al. 2012

Laser & Photonics Reviews

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Diode lasers are by far the most efficient lasers currently available. With the ever-continuing improvement in diode laser technology, this type of laser has become increasingly attractive for a wide range of biomedical applications. Compared to the characteristics of competing laser systems, diode lasers simultaneously offer tunability, high-power emission and compact size at fairly low cost. Therefore, diode lasers are increasingly preferred in important applications, such as photocoagulation, optical coherence tomography, diffuse optical imaging, fluorescence lifetime imaging, and terahertz imaging. This review provides an overview of the latest development of diode laser technology and systems and their use within selected biomedical applications. 670 nm external cavity diode laser for Raman spectroscopy built on a 13 × 4 mm 2 microbench (Copyright FBH/Schurian.com).

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“…The entire system was mounted on a portable breadboard and successfully implemented into a THz time domain system [8]. The right side of Fig.…”

mentioning

confidence: 99%

Semiconductor laser based THz generation and detection

Brenner

Hoffmann²,

Friedrich

et al. 2009

Phys. Status Solidi (c)

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We present different concepts for compact and cost effective THz technology based on semiconductor diode lasers. First, we discuss THz sources starting with modelocked diode lasers for time domain THz sampling, and two‐colour diode lasers for continuous wave THz generation. Then we show how THz radiation can be generated directly out of two‐colour diode lasers and discuss possible schemes for an optimisation of this effect towards application relevant power levels. Finally, we demonstrate that diode lasers can also serve as detectors for THz radiation. We couple the emission of a THz gas laser into the active region of a diode laser and demonstrate that this leads to a variation of the voltage over the p‐n‐junction which is almost proportional to the THz power coupled into the device. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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All-semiconductor laser driven terahertz time-domain spectrometer

Cited by 28 publications

References 28 publications

Semiconductor Diode Lasers for Terahertz Technology

Semiconductor Diode Lasers for Terahertz Technology

Diode laser based light sources for biomedical applications

Semiconductor laser based THz generation and detection

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