Journal of Infrared, Millimeter, and Terahertz Waves

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Discovery of Optically Pumped Far-infrared Laser Emissions from Formic Acid and its Isotopologues
Journal of Infrared, Millimeter, and Terahertz Waves - - 2014
K. Olivier, B. DeShano, B. Cain, L. R. Zink, M. Jackson
An optically pumped molecular laser system with a transverse excitation scheme has been used to generate far-infrared radiation. Over 100 laser emissions with wavelengths up to 1.03 mm have been detected with this system using formic acid and several of its isotopologues. This includes ten new laser lines which are reported with their operating pressure, power, polarization with respect to the CO2...... hiện toàn bộ
Effects of Millimeter Waves Radiation on Cell Membrane - A Brief Review
Journal of Infrared, Millimeter, and Terahertz Waves - Tập 31 Số 12 - Trang 1400-1411 - 2010
Alfonsina Ramundo-Orlando
Modeling of Field Effect Transistor Channel as a Nonlinear Transmission Line for Terahertz Detection
Journal of Infrared, Millimeter, and Terahertz Waves - Tập 34 - Trang 606-616 - 2013
Nihal Y. Ibrahim, Nadia H. Rafat, Salah E. A. Elnahwy
This paper revisits the theory of operation of field effect transistor in the extremely high frequency scale, where the analysis has gone beyond the conventional cutoff frequency of the transistor. In this range, which is typically the terahertz (THz) and sub-terahertz range, the transistor blocks the high frequency signal and generates a rectified signal related to the input high frequency signal...... hiện toàn bộ
Numerical and experimental investigation of a 5-port mitre-bend directional coupler for mode analysis in corrugated waveguides
Journal of Infrared, Millimeter, and Terahertz Waves - Tập 33 - Trang 491-504 - 2012
Juan Ruiz, Walter Kasparek, Carsten Lechte, Burkhard Plaum, Hiroshi Idei
A directional coupler array with 5 ports integrated into a mitre bend for corrugated waveguide transmission lines at 140 GHz has been manufactured. The design is reviewed, and calculations on the performance for in-situ power measurement and mode discrimination are shown. Emphasis is given on detection of errors in alignment of the transmission system. Experimental tests are performed to benchmark...... hiện toàn bộ
Influence of Field Effects on the Performance of InGaAs-Based Terahertz Radiation Detectors
Journal of Infrared, Millimeter, and Terahertz Waves - Tập 38 - Trang 689-707 - 2017
Linas Minkevičius, Vincas Tamošiūnas, Martynas Kojelis, Ernestas Žąsinas, Virginijus Bukauskas, Arūnas Šetkus, Renata Butkutė, Irmantas Kašalynas, Gintaras Valušis
A detailed electrical characterization of high-performance bow-tie InGaAs-based terahertz detectors is presented along with simulation results. The local surface potential and tunnelling current were scanned over the surfaces of the detectors by means of Kelvin probe force microscopy (KPFM) and scanning tunnelling microscopy (STM), which also enabled the determination of the Fermi level. Current-v...... hiện toàn bộ
Designing a Broadband Terahertz Half-Wave Plate Using an Anisotropic Metasurface
Journal of Infrared, Millimeter, and Terahertz Waves - Tập 40 - Trang 500-515 - 2019
C. Gandhi, P. Ramesh Babu, K. Senthilnathan
We design a multi-resonance metasurface at terahertz frequency, which can act as a polarization manipulator in the reflective mode. The proposed polarization converter consists of periodic unit cells and each unit cell has a resonator on the top surface. While a dielectric material forms the middle layer, a gold foil constitutes the bottom layer. The proposed polarization converter converts a line...... hiện toàn bộ
Crystalline Molecular Standards for Low-Frequency Vibrational Spectroscopies
Journal of Infrared, Millimeter, and Terahertz Waves - - 2020
Sara J. Dampf, Timothy M. Korter
The sub-200 cm−1 (sub-6 THz) vibrations of molecular crystals provide identifying features that are characteristic of each solid sample under study. These distinctive vibrational spectra have driven the development of new techniques and instrumentation in analytical spectroscopy. As terahertz time-domain spectroscopy and low-frequency Raman spectroscopy become increasingly prevalent in non-special...... hiện toàn bộ
Ultrahigh-Bitrate Wireless Data Communications via THz-Links; Possibilities and Challenges
Journal of Infrared, Millimeter, and Terahertz Waves - - 2015
Thomas Schneider
The Generation of Bessel Beam and Its Application in Millimeter Wave Imaging
Journal of Infrared, Millimeter, and Terahertz Waves - Tập 35 - Trang 208-217 - 2013
Hongfu Meng, Bo Xiang, Jinglei Zhang, Wenbin Dou, Yanzhong Yu
In this paper, the zero-order Bessel beam at W band is generated by using a diagonal horn, a convex lens, and an axicon. The generated Bessel beam has a beam spot size of 5.5mm and can propagate with a distance longer than 100mm. Several imaging experiments with the generated zero-order Bessel beam are done. The results show that the millimeter wave imaging system with the generated Bessel beam ca...... hiện toàn bộ
Experimental Study of an Adding Interferometer at Millimeter Waves
Journal of Infrared, Millimeter, and Terahertz Waves -
A. Ghribi, A. Tartari, É. Bréelle, Jean-Christophe Hamilton, S. Galli, M. Gervasi, M. Piat, S. Spinelli, M. Zannoni
Tổng số: 928   
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