Results 31 to 40 of about 185,430 (329)
Tellurite photonic crystal fiber
Optics Express, 2003 We report the fabrication of a Tellurite photonic crystal fiber, and demonstrate its waveguiding properties. The measured minimum loss is 2.3 dB/m at a wavelength of 1055 nm. The fiber supports several modes, but in practice just the fundamental mode can be used. We have observed strong stimulated Raman scattering in a fiber with an effective area Aeff=
V V Ravi Kanth, Kumar +3 more
openaire +2 more sources
FEM investigation of leaky modes in hollow core photonic crystal fibers [PDF]
, 2007 Hollow-core holey fibers are promising candidates for low-loss guidance of light in various applications, e.g., for the use in laser guide star adaptive optics systems in optical astronomy.
Burger, S. +4 more
core +2 more sources
The radiated fields of the fundamental mode of photonic crystal fibers [PDF]
, 2005 The six-fold rotational symmetry of photonic crystal fibers has important manifestations in the radiated fields in terms of i) a focusing phenomena at a finite distance from the end-facet and ii) the formation of low-intensity satellite peaks in the ...
Akbari, Mahmood +2 more
core +1 more source
Hollow-Core Photonic Crystal Fibers for Surface-Enhanced Raman Scattering Probes
International Journal of Optics, 2011 Photonic crystal fiber (PCF) sensors based on surface-enhanced Raman scattering (SERS) have become increasingly attractive in chemical and biological detections due to the molecular specificity, high sensitivity, and flexibility. In this paper, we review
Xuan Yang +4 more
doaj +1 more source
Frequency tunability of solid-core photonic crystal fibers filled with nanoparticle-doped liquid crystals [PDF]
, 2009 We infiltrate liquid crystals doped with BaTiO3 nanoparticles in a photonic crystal fiber and compare the measured transmission spectrum with the one achieved without dopant.
Alkeskjold +34 more
core +3 more sources
IEEE Photonics Journal, 2013 We numerically studied the focusing properties of a special type of graded index photonic crystal media, i.e., the so-called photonic crystal Mikaelian lenses (PCMLs). We considered PCMLs with a varying air hole diameter and with a varying air hole pitch
T. Baghdasaryan +3 more
doaj +1 more source
Specialty Photonic Crystal Fibers and Their Applications
Crystals, 2021 This year not only commemorates the 60th anniversary of nonlinear optics with the seminal experiment of second harmonic generation [...]
David Novoa, Nicolas Y. Joly
doaj +1 more source
Low-loss photonic crystal fibers for transmission systems and their dispersion properties [PDF]
, 2004 We report on a single-mode photonic crystal fiber with attenuation and effective area at 1550 nm of 0.48 dB/km and 130 square-micron, respectively. This is, to our knowledge, the lowest loss reported for a PCF not made from VAD prepared silica and at the
Folkenberg, J. R. +4 more
core +1 more source
Photonic Crystals - Optical Structures for Advanced Technology
Communications, 2008 This paper presents experimental results in the field of photonic crystals investigation. There are presented our results of experimental investigation of one-dimensional photonic crystals appearing in nature, two-dimensional photonic crystals we formed ...
Daniel Kacik +4 more
doaj +1 more source
Beni-Suef University Journal of Basic and Applied Sciences, 2022 In the last few decades, silica-based photonic crystal fibers (PCFs) have been the subject of extensive research. Traditional silica-based PCFs, however, experience considerable propagation loss when used beyond 3000 nm.
S James Raja +4 more
doaj +1 more source