We describe the history, guiding mechanism, recent advances, applications, and future
prospects for hollow-core negative curvature fibers. We first review one-dimensional slab …

In this review, we describe dielectric properties of biological tissues and liquids in the
context of terahertz (THz) biophotonics. We discuss a model of the THz dielectric permittivity …

In this paper we demonstrate the light transmission in a spectral range of 2.5 to 7.9 µm
through a silica negative curvature hollow core fiber (NCHCF) with a cladding consisting of …

Lying between optical and microwave ranges, the terahertz band in the electromagnetic
spectrum is attracting increased attention. Optical fibers are essential for develo** the full …

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 …

In this paper, we numerically investigate various hollow-core anti-resonant (HC-AR) fibers
towards low propagation and bend loss with effectively single-mode operation in the …

Over the past few decades, significant attention has been paid to the biomedical
applications of terahertz (THz) technology. Nowadays, THz spectroscopy and imaging have …

We first use numerical simulations to show that bending losses of hollow antiresonant fibers
are a strong function of their geometrical structure. We then demonstrate this by fabricating a …

A low-loss hollow core terahertz waveguide based on Kagome photonic crystal structure has
been designed and fabricated by 3D printing. The 3D printed waveguide has been …

In this paper we discuss the limits of attenuation of silica hollow core negative curvature
fibers in the wavelength range from 800 nm up to 4.5 µm. Both numerical and experimental …