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Several classes of non-planar metallic and dielectric waveguides have been proposed in the literature for guidance of terahertz (THz) or T-ray radiation. In this review, we focus on the development of dielectric waveguides, in the THz regime, with reduced loss and dispersion. First, we examine different THz spectroscopy
Graphene has been considered as an ideal material for electronic applications because of its high carrier mobility and thermal properties. Here, we study the conductivity of graphene at terahertz (THz) frequency range. Light can tune the conductivity of graphene and it has been shown that optically pumped multiple
1 Dec 2004 22 December 2004 -- It's not often that the simplest fix turns out to be the best. But engineers hunting for an efficient way to transmit terahertz waves along a narrow path have discovered that a simple metal wire does the trick. "It's really a very beautiful and unexpected result," says Michael Pepper, professor
To expand the range of THz applications it is essential to develop waveguides with minimal transmission loss and minimal dispersion. The first requirement is particularly difficult to fulfill because dielectrics and metals exhibit large absorption at THz frequencies. As a result, dielectric guides (widely used for optical waves)
3 Jul 2013 Several classes of non-planar metallic and dielectric waveguides have been pro- posed in the literature for guidance of terahertz (THz) or T-ray radiation. In this review, we focus on the development of dielectric waveguides, in the THz regime, with reduced loss and dispersion. First, we examine different
We have observed very dispersive, low-loss propagation over the frequency band from 0.65 to 3.5 THz with typical waveguide cross-section dimensions on the order of 300 µm and lengths of 25 mm. Classical waveguide theory is utilized to calculate the coupling coefficients into the modes of the waveguide for the incoming
“Chronological” series of experimental investigations into the guided-wave propagation and the associated coupling of. THz pulses. Page 3. Approach f ?. Microwaves. Optics. THz. Ideas. Ideas. Techniques. Techniques. Page 4. Outline. • THz-TDS System. • Incorporating the Waveguide. • Important Considerations.
Abstract: We pursued the extremely low loss of photonic-crystal waveguides composed of a silicon slab with high resistivity (20 k?-cm) in the terahertz region. Propagation and bending losses as small as <0.1 dB/cm. (0.326–0.331 THz) and 0.2 dB/bend (0.323–0.331 THz), respectively, were achieved in the 0.3-THz band.
29 Jun 2016 In order for the promise of terahertz (THz) wireless communications to become a reality, many new devices need to be developed, such as those for routing THz waves. We demonstrate a power splitting router based on a parallel-plate waveguide (PPWG) T-junction excited by the TE1 waveguide mode.
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