terahertz radiation
On the thermal dependence of the generation of terahertz radiation by photomixing
... (THz) radiation is electro-magnetic radiation in the frequency range of ...Scientifically, terahertz radiation is important for spectroscopic investigations and characterization of modern ...
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Studies toward a demonstration of relativistic electron beam energy modulation by interaction with terahertz radiation in free space
... of terahertz radiation the experiment described in this thesis uses a simple antenna, constructed from two electrodes attached to a semiconductor ...the terahertz radiation field. A pulse of ...
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Laterally pumped GaAs/AlGaAs quantum wells as sources of broadband terahertz radiation
... of terahertz radiation has become a hot topic in the last decade because of numerous prospective ...of terahertz radiation really re- quire coherent and highly monochromatic ...broadband ...
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High-energy coherent terahertz radiation emitted by wide-angle electron beams from a laser-wakefield accelerator
... high-power terahertz radiation suitable for applications requiring high-intensity ...transition radiation emitted by these beams if passed through a thin metal foil, or directly at the plasma–vacuum ...
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Coherent terahertz radiation emitted by wide-angle electron beams from a laser-wakefield accelerator
... transition radiation in the ...of terahertz radiation change with foil size, position and ...the radiation frequency peak from about 1 THz at a distance of ...the terahertz ...
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Enhancing Terahertz Radiation from Dipole Photoconductive Antenna by Blending Tips
... for terahertz radiation and detection, with different blend radii effect on the emission performance of terahertz (THz) ...THz radiation pulse is proportional to the local electric field in ...
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Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system
... Figure 4(a) shows the dependence of the BTR energy from a 5 µm copper target driven with a laser energy varying from 0 to 54 J. The BTR energy increases linearly as the driven energy increases. Figure 4(b) shows the ...
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High-energy, short-duration bursts of coherent terahertz radiation from an embedded plasma dipole
... of radiation from electrons undergoing plasma oscillations (POs) at the plasma frequency has attracted interest because of the existence of intriguing and non-trivial coupling mechanism between the electrostatic ...
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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
... 9. Nagaia, M., K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, “Generation and detection of terahertz radiation by electro-optical process in GaAs using 1.56 mm fiber laser pulses,” ...
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Hemodynamic Changes Caused by Exposure of Animals with Acute Immobilization Stress to Continuous Terahertz Radiation
... to terahertz radiation equal to absorption and emission frequencies of nitrogen oxide ...to terahertz radiation equal to absorption and emission fre- quencies of atmospheric oxygen ...
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Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system
... Figure 4(a) shows the dependence of the BTR energy from a 5 µ m copper target driven with a laser energy varying from 0 to 54 J. The BTR energy increases linearly as the driven energy increases. Figure 4(b) shows the ...
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Observation of terahertz radiation via the two-color laser scheme with uncommon frequency ratios
... fundamental-pulse wavelength longer than 800nm was adopted in recent experiments to enhance the THz strength [29–31] and the second-harmonic-pulse frequency was detuned to yield ultra-broadband radiation [32]. ...
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Continuous wave terahertz radiation from an InAs/GaAs quantum dot photomixer device
... Generation of continuous wave radiation at terahertz (THz) frequencies from a heterodyne source based on quantum-dot (QD) semiconductor materials is reported. The source comprises an active region ...
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High-field half-cycle terahertz radiation from relativistic laser interaction with thin solid targets
... half-cycle terahertz (THz) pulses with the peak field over 100MV/cm can be produced in ultrashort intense laser interactions with a thin solid ...transition radiation (CTR) by laser- produced ultrashort ...
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Bursts of terahertz radiation from large-scale plasmas irradiated by relativistic picosecond laser pulses
... THz radiation with that produced by femtosecond laser-solid interactions where a small-scale preplasma with a steep density gradient is formed ...THz radiation is ...THz radiation are potentially ...
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Effects of target pre-heating and expansion on terahertz radiation production from intense laser-solid interactions
... The main diagnostic is a broadband pyroelectric THz radiometer (Model SPI-A-62 from Spectrum Detector Inc.) coupled to a Tektronix oscilloscope. The detector has a flat response coefficient from 0.3 to 21 THz, with a ...
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Highly efficient terahertz radiation from a thin foil irradiated by a high-contrast laser pulse
... t , the hot electrons have already refluxed several times in the 2 m target, just completed their first refluxing in the 5 m target, and are just being reflected by the rear sheath field in the 10 m . Figs. 5 ...
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Free-space terahertz radiation from a LT-GaAs-on-quartz large-area photoconductive emitter
... photoconductive terahertz (THz) emitters with a low- temperature-grown GaAs (LT-GaAs) active layer fabricated on quartz substrates using a lift-o ff transfer ...
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Generation of Terahertz Radiation from Fe-doped InGaAsP Using 800 nm to 1550 nm Pulsed Laser Excitation
... THz emission at 1550 nm excitation was first demonstrated using a THz-TDS system based on a fiber laser (Pro-NIR, Toptica) with a <100 fs pulse width (Fig. 2). The output beam at 1550 nm was split into two paths using ...
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