terahertz (THz) waveguides
Characterization of low-loss waveguides and devices for terahertz radiation
... of terahertz (THz) waveguides, such as photonic crystal fibers, quantum cascaded lasers, plasmonic waveguides, power splitters, and narrow-band ...plasmonic waveguides have also been ...
8
Terahertz Interferometer for Integrated Goubau-Line Waveguides
... the Terahertz spectrum (0.1 THz–30 THz) is currently in huge expansion ...by THz waves which excite liquid weak-bond like hydrogen ones ...perform THz spectroscopy, the waves can either ...
10
Surface plasmon waveguides with gradually doped or NiAl intermetallic compound buried contact for terahertz quantum cascade lasers
... Indjin, D., Ikonic, Z., Harrison, P. et al. (1 more author) (2003) Surface plasmon waveguides with gradually doped or NiAl intermetallic compound buried contact for terahertz quantum cascade lasers. Journal ...
12
Mechanically robust cylindrical metal terahertz waveguides for cryogenic applications
... the THz properties of the 90° coupler, a setup similar to that shown in ...2.85 THz was coupled into a 333 mm long PS-MWG in order to clean the beam and provide an input waveguide for ...perpendicular ...
10
Finite element characterisation of plasmonic waveguides in terahertz and optical frequencies
... using THz in TDS systems over other radiation bands of the electromagnetic ...First, THz-TDS provides coherent spec- troscopic detection over a wide range at ...THz. THz-TDS utilises coherent ...
241
Emergence of THz technologies and design and optimisation low-loss waveguides and devices
... emerging terahertz (THz) region occupies a large portion of the electromagnetic spectrum, located between the microwave and optical frequencies and normally is defined as the band ranging from ...10.0 ...
6
Design of a Polymer-Based Hollow-Core Bandgap Fiber for Low-Loss Terahertz Transmission
... waves, THz radiation suffers high absorption losses in conventional dielectric waveguides, whereas at the same time, unlike microwaves, THz radiation also suffers from high Ohmic losses and ...
5
THz Wave Generation from GaP THz Photonic Crystal Waveguides under Difference Frequency Mixing
... the THz frequency region has a number of important potential applications in the medical and imaging fields ...coherent THz sources, based on photoconductive antenna, quantum cascade lasers, and non-linear ...
5
Low-loss Waveguides and Devices for Compact THz Systems
... a Terahertz frequency range band-stop filter for molecular sensing [18], where two 5 μm wide band-stop filter stubs with a length of 192 μm and 83 μm are placed at a 400 m apart along the direction of ...
9
Dispersion characteristics of plasmonic waveguides for THz waves
... of Terahertz waveguides in order to expand on current ...of THz radiation of dielectrics and metals, an outstanding problem has been the development of efficient waveguide structures with minimal ...
8
Low-loss Waveguides for THz Guidance and Devices
... Dielectric waveguides in silica, silicon, polymer, and other semiconductors materials have been widely used at optical frequencies: however most of these materials are very lossy at the lower terahertz ...
7
Numerical analysis of temperature-controlled terahertz power splitter
... multi-channel terahertz wave power splitter based on Y- junction photonic crystal waveguides and multi-mode interference photonic crystal structure (see ...temperature-controlled terahertz power ...
6
Waveguide Structures for Generation of Terahertz Radiation by Electro-Optical Process in GaAs and Zugep2 Using 1.55μm Fiber Laser Pulses
... the terahertz waves and optical pulses are so large that the phase-matching coherent lengths are quite short, for example, the coherent length of ...2 THz around, ...
8
Design of a Reflectarray Antenna Using Graphene and Epsilon-Near-Zero Metamaterials in Terahertz Band
... The suggested graphene-based reflectarray using ENZ material is designed for 1 THz center frequency and is made of small unitcells. The size of the patch is nearly half wavelength in conventional patches, but in ...
7
Relay assisted nanoscale communication in the Terahertz Band
... the THz band is one of the promising ...0.1THz-10.0 THz (the target THz band) at the nanoscale ...the THz channel is the high path loss and noise due to the molecular absorption of EM waves ...
6
Teraherz vibrational spectroscopy of E coli and molecular constituents: Computational modeling and experiment
... the THz radiation propagates through an entire object, allowing the genetic material and proteins all contribute to the THz signature of bacteria or ...between THz radiation and bio- logical ...
11
Terahertz sensing and imaging using a quantum cascade laser
... demonstrate terahertz (THz) frequency imaging and sensing using a single quantum cascade laser (QCL) device for both generation and sensing of THz ...the THz QCL, and specifically by ...
5
Terahertz Wave Generation via Nonlinear Parametric Process from ε GaSe Single Crystals Grown by Liquid Phase Solution Method
... the THz output power as a function of the external PM angle between c-axis of the crystal and the incident direction of the optical ...monochromatic THz-waves with linewidth of about ...9.41 THz, ...
7
Origin of terminal voltage variations due to self mixing in terahertz frequency quantum cascade lasers
... Abstract: We explain the origin of voltage variations due to self-mixing in a terahertz (THz) frequency quantum cascade laser (QCL) using an extended density matrix (DM) approach. Our DM model allows ...
10
Extraction-controlled terahertz frequency quantum cascade lasers with a diagonal LO-phonon extraction and injection stage
... thinning to a thickness of 180 µ m, and back-side metallization, laser bars were cleaved and indium-soldered to copper submounts. For the light power-current-voltage (L-I-V) and spectral characterization, the devices ...
11