Optical fibre sensors make use of diverse physical effects to measure parameters such as
strain, temperature and electric field. Here we introduce a new class of reconfigurable fibre …

We propose a new method to determine the wavefront of a laser beam based on modal
decomposition by computer-generated holograms. The hologram is encoded with a transmission …

We present a real-time method to determine the beam propagation ratio M^2 of laser beams.
The all-optical measurement of modal amplitudes yields M^2 parameters conform to the …

We report on a fast and experimentally easy technique for measuring the beam propagation
ratio M^2 of light guided by optical fibers. A holographic filter enables us to determine …

We report a novel optothermal trapping mechanism that occurs in air-filled hollow-core
photonic crystal fiber. In the confined environment of the core, the motion of a laser-guided …

Micrometer-sized particles are trapped in front of an air-filled hollow-core photonic crystal
fiber using a novel dual-beam trap. A backward guided mode produces a divergent beam that …

We show how microparticles can be moved over long distances and precisely positioned in
a low-loss air-filled hollow-core photonic crystal fiber using a coherent superposition of two …

Laser Doppler velocimetry is used to measure very accurately the velocity and position of a
microparticle propelled and guided by laser light in liquid-filled photonic crystal fiber. …

We measure the polarization state of each guided transversal mode propagating in step-index
large-mode-area fibers (V≈4) using a correlation-filter based measurement technique in …

… and without pathology, including knee osteoarthritis. However, no … and testing methods for
individuals with knee osteoarthritis. … In general, people with knee osteoarthritis exhibited worse …