Bound states in the continuum (BICs) are waves that remain localized even though they
coexist with a continuous spectrum of radiating waves that can carry energy away. Their very …

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

Since their inception, about 20 years ago, hollow-core photonic crystal fiber and its gas-filled
form are now establishing themselves both as a platform in advancing our knowledge on …

This article offers an extensive survey of results obtained using hybrid photonic-crystal fibers
(PCFs) which constitute one of the most active research fields in contemporary fiber optics …

A Raman laser with a wavelength exceeding 4 μm is designed for the first time. Using a
revolver silica fibre with a hollow core filled with molecular hydrogen (1 H 2) as an active …

A route to supercontinuum generation in gas‐filled hollow‐core anti‐resonant fibers is
demonstrated through the creation of a broad vibrational Raman frequency comb followed …

We report on two types of Raman laser sources emitting in the near and middle ultraviolet
spectral ranges by the use of a solarization-resilient gas-filled inhibited-coupling (IC) hollow …

Nonlinear optical processes are vital for fields including telecommunications, signal
processing, data storage, spectroscopy, sensing and imaging. As an independent research …

The high-energy few-cycle mid-infrared laser pulse beyond 2 μm is of immense importance
for attosecond science and strong-field physics. However, the limited gain bandwidth of …

We report on the generation of a purely vibrational Raman comb, extending from the
vacuum ultraviolet (184 nm) to the visible (478 nm), in hydrogen-filled kagomé-style …