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

The success of high-power fiber lasers is fueled by maturation of active and passive fibers,
combined with the availability of high-power fiber-based components. In this contribution, we …

The use of infrared lasers to power optical-scale lithographically fabricated particle
accelerators is a develo** area of research that has garnered increasing interest in recent …

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 …

We propose a simple physical model that predicts the optical properties of a class of
microstructured waveguides consisting of high-index inclusions that surround a low-index …

We review the field of fluid-filled solid-core photonic bandgap fibers (SC-PBGF): we present
the mechanisms and models of light guidance in these fibers, and how the guidance …

A low-loss terahertz air-core microstructure fiber is demonstrated for terahertz waveguiding.
Substantially low attenuation constant less than 0.01 cm− 1 has been achieved and the …

Modal characteristics of the THz pipe waveguide, which is a thin pipe consisting of a large
air core and a thin dielectric layer with uniform but low index, are investigated. Modal indices …

It is possible for core leaky mode to couple with cladding defect leaky mode when the
cladding defect is close to fiber core. Dispersion properties and propagation loss of core …

Early work suggested that very large refractive index contrasts would be needed to create
photonic bandgaps in two or three dimensionally periodic photonic crystals. It was then …