Results 31 to 40 of about 180,033 (332)

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, Chao Shi, Rebecca Newhouse, Jin Z. Zhang, Claire Gu   +4 more
doaj   +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, Ivan Martincek, Dusan Pudis, Norbert Tarjanyi, Ivan Turek   +4 more
doaj   +1 more source

Photonic Crystal Mikaelian Lenses and Their Potential Use as Transverse Focusing Elements in Microstructured Fibers

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, T. Geernaert, H. Thienpont, F. Berghmans   +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

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, Anders Bjarklev, Du, Eggleton, Gauza, Gauza, Haakestad, Haiqing Xianyu, Kaczmarek, Kerbage, Kiely, Kobayashi, Kundu, Lara Scolari, Lars Eskildsen, Larsen, Lei Zhai, Li, Litchinitser, Noordegraaf, Noordegraaf, Reznikov, Russell, Scolari, Scolari, Sebastian Gauza, Shin–Tson Wu, Shiraishi, Thomas T. Alkeskjold, Wolinski, Wolinski, Wolinski, Wu, Wu, Zografopoulos   +34 more
core   +3 more sources

Design of hexagonal chalcogenide photonic crystal fiber with ultra-flattened dispersion in mid-infrared wavelength spectrum

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, Tony Jose, R Charlcedony, M Sam Paul, R Chakravarthi   +4 more
doaj   +1 more source

Topological photonic crystal fiber. [PDF]

Sci Adv
Photonic crystal fibers (PCFs) provide a versatile platform for various applications, thanks to the flexibility with which light guiding can be customized by modifying the fiber geometry. We realize a PCF with guided modes produced by photonic band structure topology rather than conventional mode-trapping mechanisms.
Zhu B, Hean K, Wong S, Wang Y, Banerjee R, Xue H, Wang Q, Cerjan A, Wang QJ, Chang W, Chong Y.   +10 more
europepmc   +3 more sources

Mid-infrared surface plasmon resonance sensor based on photonic crystal fibers.

Optics Express, 2017
A surface plasmon resonance (SPR) sensor with two open-ring channels based on a photonic crystal fiber (PCF) is described. The sensor is designed to detect low refractive indexes between 1.23 and 1.29 with the operation wavelength in mid-infrared region ...
Chao Liu, Lin Yang, Xili Lu, Qiang Liu, Famei Wang, Jingwei Lv, T. Sun, H. Mu, P. Chu   +8 more
semanticscholar   +1 more source

Effective area of photonic crystal fibers [PDF]

, 2002
We consider the effective area A_eff of photonic crystal fibers (PCFs) with a triangular air-hole lattice in the cladding. It is first of all an important quantity in the context of non-linearities, but it also has connections to leakage loss, macro ...
Mortensen, Niels Asger
core   +2 more sources

Improvement of Optical Properties in Hexagonal Index-guiding Photonic Crystal Fiber for Optical Communications [PDF]

Mathematics Interdisciplinary Research, 2017
Waveguides with low confinement loss, low chromatic dispersion, and low nonlinear effects are used in optical communication systems. Optical fibers can also be employed in such systems.
Saeed Olyaee, Mahmood Seifouri, Ali Nikoosohbat   +2 more
doaj   +1 more source