Terahertz Hilbert Spectroscopy by High-T c Josephson Junctions

Divin, Y.Y.; Volkov, O. Yu.; Павловский, В.; Shirotov, V.V.; Shadrin, P.M.; Poppe, U.; Urban, K.

doi:10.1007/3-540-44946-9_25

Cited by 20 publications

(9 citation statements)

References 13 publications

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“…Future developments may promote Hilbert-transformation spectroscopy with the potential to cover the broad range from some gigahertz to some terahertz [291,292]. Presently the method is considered a tool for liquid identification in security applications [287].…”

Section: Conclusion Accuracy Aspects and Perspectivesmentioning

confidence: 99%

Techniques for measuring the microwave dielectric properties of materials

Kaatze¹

2010

Metrologia

153

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This review gives a brief introduction to the principles of microwave measurements of the complex permittivity of materials. The fundamentals of reflection, transmission and resonant methods are summarized and examples of sample cell design and measurement systems are presented for each category. The frequency domain and the fast response time domain methods are discussed in view of their merits and limitations. Accuracy aspects and reference materials for calibration procedures are mentioned briefly. Selected examples of applications indicate the diverse usability spectrum of microwave dielectric measurements in basic research and in the characterization of materials in manufacturing processes as well as monitoring and control routines.

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Section: Conclusion Accuracy Aspects and Perspectivesmentioning

confidence: 99%

Techniques for measuring the microwave dielectric properties of materials

Kaatze¹

2010

Metrologia

153

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“…Actually, the development of the Hilbert-transform spectral analysis was stimulated by a need to measure the instrumental function of the far-infrared grating spectrometer and actually the measurement of this instrumental function was the first terahertz application of the Hilbert-transform technique [14]. Later, a Lorentz form of the instrumental function of the Hilbert-transform spectrum analyzer was several times experimentally established [15]- [17]. After experimental evidences, the instrumental function was also theoretically considered and the Lorentz form was deduced [11].…”

Section: Instrumental Functionmentioning

confidence: 99%

Terahertz Applications of Hilbert-Transform Spectral Analysis

Divin

Snezhko

Lyatti

et al. 2014

IEEE Trans. Appl. Supercond.

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Bridging of the terahertz gap in the electromagnetic spectrum between the microwave and infrared ranges requires a variety of new technological developments from basic elements, such as emitters and detectors, to complete systems, such as spectrum analyzers and imagers. As an example of these developments, Hilbert-transform spectral analysis of terahertz radiation sources has been demonstrated. A spectrum analyzer based on a high-T c square-law Josephson detector has been developed and characterized in the frequency range from 50 to 1800 GHz. Spectra of output terahertz radiation from optically-pumped lasers and frequency multipliers have been studied, and their regimes were optimized for a single-frequency operation. Starting from the optimized multipliers, a polychromatic source has been synthesized and characterized with Hilbert-transform spectrum analyzer.

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“…5. The absolute calibration of the power scale has been reached using a theoretical value of radiation amplitude for the first maximum of the first Shapiro step at V = hf/2e [5]. As follows from Fig.…”

Section: Power Dynamic Rangementioning

confidence: 99%

“…Emission spectra of optically-pumped CH 3 OH laser at various laser cavity lengths and pump frequencies have been analyzed b roscopy [5] using the [100]-tilt YBa 2 Cu 3 O 7-x junctions. One of these spectra is shown in Fig.…”

Section: Application Of Josephson Detector For Spectmentioning

confidence: 99%

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Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions

Divin

Liatti

Tkachev

et al. 2005

2005 18th International Conference on Applied Electromagnetics and Communications

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Frequency-selective and broadband high-T c Josephson detectors have been fabricated and characterized. A spectral range from 15 GHz to 5.3 THz has been demonstrated for these detectors. A power dynamic range of 50 dB and a noise equivalent power of 10 -14 W/Hz 1/2 have been realized. A spectral resolution δf/f of 10 -3 has been achieved in the terahertz range. As an alternative to Fourier-transform spectroscopy, fast Hilbert-transform spectroscopy, based on these detectors, has been applied for various cw and pulsed terahertz sources.

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Terahertz Hilbert Spectroscopy by High-T c Josephson Junctions

Cited by 20 publications

References 13 publications

Techniques for measuring the microwave dielectric properties of materials

Techniques for measuring the microwave dielectric properties of materials

Terahertz Applications of Hilbert-Transform Spectral Analysis

Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions

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