THz pulse
Monitoring leaf water content with THz and sub-THz waves
... a pulse duration of about 100 ...detecting THz pulses are photoconductive antennas ...terahertz pulse for each incoming light ...the THz pulse and record its shape in the time ...a ...
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Spectroscopy and Imaging by Laser Excited Terahertz Waves
... of THz waves by femtosecond laser ...the THz pulses are emit- ted into free ...the THz pulses. By scanning the op- tical delay, the wave forms of the THz waves are ...
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On-chip terahertz spectroscopic techniques for measuring mesoscopic quantum systems.
... investigate THz pulse injection into the 2DES layer, a new device was fabricated from the monolithically grown ...for THz generation and ...of THz pulses propagating through the 2DES ...
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Terahertz spectroscopy of anisotropic materials using beams with rotatable polarization
... transmitted THz amplitude |E| was a ...the THz pulse incident on the WGP would have equal components parallel and perpendicular to the ...elliptical pulse, which is approaching circular ...
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Near-field analysis of terahertz pulse generation from photo-excited charge density gradients
... the THz pulse field radiated from photo-excited Fe:InGaAs surfaces suggest that the photo-excited charge carrier dynamics in the plane of the surface play a key role in the process of THz ...
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Nearly Single-Cycle Terahertz Pulse Generation in Aperiodically Poled Lithium Niobate
... single-cycle THz pulse generation in APPLN crystal in conjunction with THz chirped mirror has been analyzed in detail by Yahaghi and co-worker in ...of THz chirped mirror fabrication and its ...
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Waveguide Structures for Generation of Terahertz Radiation by Electro-Optical Process in GaAs and Zugep2 Using 1.55μm Fiber Laser Pulses
... The THz emitter, based on ultrafast laser, is a potential candidate that has a wide THz ...cost THz field source and detection technique, based on 1550-nm fiber laser, is a ...for THz ...
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Enhancing Terahertz Radiation from Dipole Photoconductive Antenna by Blending Tips
... For the increasing width would decrease the emission efficiency of the dipole antenna [11], we study the radiation power correspond to the different R values. In our simulation, the model is the same as before. The ...
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Tunable broadband terahertz polarizer using graphene-metal hybrid metasurface
... the THz pulse caused by the reflection the surfaces (substrate and ion ...3 THz in experiments owing to the limited system bandwidth, which rolled off beyond 3 ...
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Aligned copper nanorod arrays for highly efficient generation of intense ultra-broadband THz pulses
... intense, THz pulses are generated via high-intensity laser-solid interaction (for details about the experiments, please see ...the THz pulse energy for medium frequencies (≤ 20 THz, with ...
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Terahertz time-domain spectroscopy of local cow’s tissues
... raw THz data of samples were acquired, Fast Fourier Transform (FFT) was applied on both sample and reference signals to get the spectrum distribution of THz pulse in frequency domain and then Fresnel ...
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Terahertz Imaging Progress at Capital Normal University
... [1-5]. THz imaging has the advantage to penetrate most of non-metal and non-polar materials for the detection of concealed objects, while it is harmless to biological tissue and human body ...[6-14]. THz ...
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Generation of THz frequency using PANDA ring resonator for THz imaging
... 30 THz to 100 ...radiation. THz radiation gives rise to rotational and vibrating excitation of some biological ...molecules. THz radiation has also been used in tissue with differentiating ...
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THz intervalence band antipolaritons
... Mode THz radiation and intervalence band transitions in quantum well gain ...interesting THz based devices based on TE modes in contrast with inter-conduction band transitions that only couple to TM ...
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Raman and Terahertz Spectroscopic Investigation of Cocrystal Formation Involving Antibiotic Nitrofurantoin Drug and Coformer 4-aminobenzoic Acid
... 1.70 THz at room temperature are shown in Figure 3, with the THz signal transmitting through the nitrogen as the reference waveform for the corresponding ...1.59 THz, and the absorption intensity of ...
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Observation of terahertz radiation via the two-color laser scheme with uncommon frequency ratios
... in THz spectroscopy [1, 2] and THz- field matter interactions [3, ...powerful THz radiation sources with various parameters via different laser-plasma-based schemes [5– ...MV/cm-scale THz ...
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THz waveguide adapters for efficient radiation out-coupling from double metal THz QCLs
... characterizes THz radiation makes it unclear whether passive components and circuitry in this range should be developed mimicking optics or ...cooling, THz quantum cascade lasers (QCL) [1, 2] are the only ...
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Optical feedback effects on terahertz quantum cascade lasers: modelling and applications
... Pulsed THz LFI techniques are a promising pathway to higher-temperature THz QCL imaging, long-range screening, and materials ...of THz QCLs, using models for single-mode single-cavity and multi-mode ...
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Continuous wave terahertz radiation from an InAs/GaAs quantum dot photomixer device
... CW THz signals may be generated using semiconductor materials in which (photo) carrier lifetimes are limited to 1 ps or ...A THz signal is the resultant difference frequency, the PC material is modulated at ...
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On the thermal dependence of the generation of terahertz radiation by photomixing
... detected THz signal is dominated by the coherent part due to the oscillating photocurrent, it is useful again to plot the THz power against ...0.5 THz and s = ...
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