Thanks to the guidance of an optical wave in air, hollow-core fibers may serve as sampling
cells in an optical spectroscopic system. This paper reviews applications of hollow-core …

We theoretically explore the fundamental limits on the efficiency of coupling light into hollow-
core antiresonant fibres. We study in particular the coupling of a free-space Gaussian beam …

We demonstrate a multi-watt, picosecond pulse duration laser source by exploiting a
cascaded Raman process to the second Stokes signal at a wavelength of 2.58 μ m in a …

Due to their unique capabilities, hollow-core waveguides are playing an increasingly
important role, especially in meeting the growing demand for integrated and low-cost …

Versatile and flexible gas analysis for compositional identification and quantification is a
demand found in a variety of diverse sectors. As such, a compact, deployable instrument …

In this paper, we present the pressure-driven gas flow studies in nodeless antiresonant
hollow-core fibers (ARHCFs) for laser absorption spectroscopy (LAS) applications. The …

The non-kinetic models typically offer a more straightforward approach than the complex
kinetic models for microchannel gas flow problems. However, their applicability has …

In this paper, the combination of using an anti-resonant hollow-core fiber (ARHCF), working
as a gas absorption cell, and an inexpensive, commercially available watch quartz tuning …

A novel table-top experiment is introduced to detect photon-axion conversion: WISP
searches on a fiber interferometer (WISPFI). The setup consists of a Mach-Zehnder-type …

The design flexibility of Hollow-Core Photonic Crystal Fibres (HC-PCFs) is a significant
feature that allows the fibres to achieve excellent optical properties. Changes in the design …