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2 Schematic experimental setup for nonlinear optical detection of THz-wave radiation from RTD devices with MgO:LiNbO3 crystals. PD: photodetector.

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(a) Out-of-plane effective permittivity 𝜀∥ ε ∥ and (b) in-plane effective permittivity 𝜀⊥ ε ⊥ of a silicon pillar array HMM as functions of terahertz ...

1 (a) Waveform of THz pulses after transmission through a Si substrate without and with graphene. The inset shows how different echoes are generated by ...

OSA | 5-ps-long terahertz pulses from an active-mode-locked quantum cascade laser

Experimental setup for static and transient THz-TDS. For static spectroscopy, the pump pulse is blocked. The THz beam splitter (BS) together with mirror M ...

Fig. 1 Conduction-band diagrams for design SARP172 at two different biases where the repeat-structure with four-wells is highlighted.

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OSA | Extremely low-loss terahertz waveguide based on silicon photonic-crystal slab

1 This figure shows a sketch of a typical THz TDS setup. The delay line changes the optical path lengths of the emitter and/or detector paths.

Fig. 2 Transmission and surface impedances of the metasurface. (a) The simulated and measured magnitude transmission spectra when VO2 is in the insulating ...

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OSA | Intense THz source based on BNA organic crystal pumped at Ti:sapphire wavelength

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OSA | Terahertz quantum-cascade lasers as high-power and wideband, gapless sources for spectroscopy

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2 A schematic diagram of terahertz spectroscopy using the TPO system.

Fig. 1.

(b) Schematic illustration of broadband and narrowband THz generation with tilted-pulse-front pumping at ...

The single-mode like emission peak at ~5.2 THz with Q factor of 170

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Terahertz Radiation: An Emerging Technology for Biomedical Research

(A) Extraordinary modulation of the reflected terahertz radiation is achieved by modulating the Fermi

Sketch of s-SNOM illuminated by a free-space THz beam, tunable between 0.5 and 0.75 THz, from a microwave–harmonic transceiver circuit that also provides ...

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1 A photoconductive device generating terahertz radiation in reflection (towards reader) and transmission (away from reader) geometries.

Terahertz wireless could make spaceborne satellite links as fast as fiber-optic links

The THz field was split into two arms – one probed the sample in transmission mode while the other served as a reference.

OSA | High efficiency THz generation in DSTMS, DAST and OH1 pumped by Cr:forsterite laser

Schematic of a single nanowire photoconductive detector geometry and optical arrangement used in its characterization. The upper inset shows a THz transient ...

Roof Certification Template Best Images for Sitepinterestcompin Case Otj

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Left plot: THz energy dependence on laser pulse energy for monocrystalline and structured polycrystalline samples. Maximum energy corresponds to the fluence ...

Towards the development of a new evaluation method of semiconductors by using terahertz waves

1 Optical feedback model for the coupled-cavity THz QCL. The internal cavity has passive cavity of length L p, air gap of length L g, and active cavity of ...

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1 Realization of the broadband QCL based THz amplifier. (a) Schematic of the experimental setup. A Ti:Sapphire based TDS setup is used to generate ...

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OSA | Terahertz single pixel imaging with an optically controlled dynamic spatial light modulator

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THz flow

OSA | Surface-enhanced terahertz spectroscopy using gold rod structures resonant with terahertz waves

OSA | Material parameter estimation with terahertz time-domain spectroscopy

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Using flexible transparent polyethylene terephthalate (PET) as a substrate, researchers from Chalmers University of Technology have devised an ...

1 Schematic of the experimental setup for high electric field THz pulse generation. In the inset THz transmission through HRFZ-Si filter and UHMWPE window ...

OSA | Phase-locked multi-terahertz electric fields exceeding 13 MV/cm at a 190 kHz repetition rate

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OSA | Limitations to THz generation by optical rectification using tilted pulse fronts

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Scheme of the THz spectroscopy set-up with free charges moving in-phase with

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2 Schematic diagram of transmitted THz wave through the liquid sample (not to scale).

2 Power scaling for the fundamental (1064 nm), Stokes (1071 nm, magnified 10 times) and THz (1.76 THz) fields without Teflon coating on Mg:LiNbO3 crystal.

1 “All air–plasma” THz spectroscopy system. Air–plasma filaments are used for both generation and detection of the THz electromagnetic radiation.

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Configuration of backward THz generation expressed in terms of wave vectors and poling period ( Λ Λ ).

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OSA | Low temperature-grown GaAs carrier lifetime evaluation by double optical pump terahertz time-domain emission spectroscopy

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2 Schematic of the THz communication link system set-up.

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1 Schematic drawing of the THz beam path for reflectivity measurements.

2 (a) S 1: intensity profile of the Pockels-induced optical pulse; S EO: intensity profile of the THz wave measured by conventional EO sampling.

Typical THz transient produced and detected by photoconductive switches (left) and its spectrum (right).

Fig. 2.

Fig. 1 (a) Cross-section of the MBE-grown InAs QDs. (b) The chevron pattern observed during the formation of the InAs QDs. (c) THz-TDS applied B-field ...

1 (a) Scheme of pumping-detection structure in one period of the active region of the MIR-pumped THz QCD. (b) Calculated conduction band profile of a THz ...

Chiral patterned photoexcitation is realized with a reflection-type two-dimensional SLM, and the polarization states of the transmitted terahertz pulse are ...

(a) Schematic representation of the graphene supercapacitor used as a broadband THz modulator. The supercapacitor consists of ionic liquid electrolyte ...

2 Hanning window function with typical values, t 0=10 ps and fc =4 THz, in the time domain and its Fourier transform (power spectrum) in the inset.

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OSA | Progress in terahertz sources based on difference-frequency generation [Invited]

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Figure 2

Fig. 1 Illustration of the influence of the phase error on the conductivity retrieved from transient reflectance. Black lines: model conductivity used to ...

Experimental setup used to measure the terahertz nonlinear transmission through the silicon waveguide.

1 Experimental setup of the multichannel THz TDS system: (1) Beam splitter (90:10), (2) Optical delay stage, (3) Aspheric lens, (4) THz emitter, ...

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Fig. 1 (a) Microscopic images of the basic resonator of monomer, dimer, and trimer MM, in which L = 140 μm, h = 70 μm, l = 24 μm, ...

OSA | Broadband terahertz imaging with highly sensitive silicon CMOS detectors

2. Schematic diagram of the experimental setup for the SE ring-cavity configuration. The inset shows the noncollinear phase matching condition for THz wave ...

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Transmitted terahertz pulse (primary peak and the FP reflected peak) through the (a) 7 and (b) 10 nm thick samples.

Figure 1 .