scholarly journals White light generation using photonic crystal fiber with sub-micron circular lattice

2017 ◽  
Vol 68 (4) ◽  
pp. 282-289 ◽  
Author(s):  
Hamed Saghaei ◽  
Ashkan Ghanbari
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
White Light ◽  
Near Infrared ◽  
Metabolic Response ◽  
Stimulated Raman Scattering ◽  
Infrared Region ◽  
Visible Range ◽  
Crystal Fiber ◽  
White Light Generation

AbstractIn this paper, we study a photonic crystal fiber (PCF) with circular lattice and engineer linear and nonlinear parameters by varying the diameter of air-holes. It helps us obtain low and high zero dispersion wavelengths in the visible and nearinfrared regions. We numerically demonstrate that by launching 100 fs input pulses of 1, 2, and 5 kW peak powers with center wavelength of 532 nm from an unamplified Ti:sapphire laser into a 100 mm length of the engineered PCF, supercontinua as wide as 290, 440 and 830 nm can be obtained, respectively. The spectral broadening is due to the combined action of self-phase modulation, stimulated Raman scattering and parametric four-wave-mixing generation of the pump pulses. The third and the widest spectrum covers the entire visible range and a part of near infrared region making it a suitable source for both white light applications and optical coherence tomography to measure retinal oxygen metabolic response to systemic oxygenation.

Time-resolved spectroscopy based on white-light generation of short pulses in a photonic crystal fiber

2005 ◽  
Author(s):  
Johannes Swartling ◽  
Andrea Bassi ◽  
Cosimo d'Andrea ◽  
Antonio Pifferi ◽  
Alessandro Torricelli ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
White Light ◽  
Time Resolved ◽  
Short Pulses ◽  
Time Resolved Spectroscopy ◽  
Crystal Fiber ◽  
White Light Generation ◽  
Light Generation

Dynamic Time-Resolved Diffuse Spectroscopy Based on White Light Generation in a Photonic Crystal Fiber

2005 ◽  
Author(s):  
Cosimo D'Andrea ◽  
Andrea Bassi ◽  
Johannes Swartling ◽  
Antonio Pifferi ◽  
Alessandro Torricelli ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
White Light ◽  
Time Resolved ◽  
Crystal Fiber ◽  
White Light Generation ◽  
Light Generation ◽  
Dynamic Time

scholarly journals D-shaped Photonic Crystal Fiber Based on Surface Plasmon Resonance Sensor with Metal Nanodimers Array

2021 ◽  
Author(s):  
Shengxi Jiao ◽  
Xinzhi Li ◽  
Hanrui Yang ◽  
Hairui Fang ◽  
Shibo Xu
Keyword(s):  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Near Infrared ◽  
Near Field ◽  
Infrared Region ◽  
Crystal Fiber ◽  
Resonance Sensor

Abstract A D-shaped photonic crystal fiber (PCF) sensor with metal nanodimers array is presented and demonstrated for analyte detection with refractive index (RI) ranging from 1.28 to 1.37. In contrast to previous D-shaped PCF sensors, the coupling system is composed of Au-Ag nanodimers array, Silver (Ag) nanowires are arranged under the Gold (Au) array on the D-shaped surface, which cause the electric field within a confined volume is strongly enhanced, and the sensitivity of the surface plasmon resonance to dielectric environment of this volume to be promoted by near-field coupling. The finite element method (FEM) is adopted to numerical investigate the coupling characteristics and sensing performance of the PCF sensor in the near-infrared region. An average wavelength sensitivity (WS) of 14021 nm/RIU is attained,and a maximum WS of 16380 nm/RIU is acquired with a supernal RI resolution of 6.11×10 -6 RIU, which has an excellent application prospect in the fields of biological, biochemical and environmental detection.

Sensing Characteristics of Near-Infrared Band Based on New Photonic Crystal Fiber

2021 ◽  
Vol 48 (7) ◽  
pp. 0706001
Author(s):  
张文 Zhang Wen ◽  
白冰冰 Bai Bingbing ◽  
张砚曾 Zhang Yanzeng ◽  
陈聪 Chen Cong ◽  
邵齐元 Shao Qiyuan ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Near Infrared ◽  
Infrared Band ◽  
Crystal Fiber ◽  
Sensing Characteristics

scholarly journals Numerical simulation of all-normal dispersion visible to near-infrared supercontinuum generation in photonic crystal fibers with core filled chloroform

2021 ◽  
Vol 130 (1B) ◽  
pp. 43-51
Author(s):  
Thi Minh Ngoc Vo ◽  
Dinh Quang Ho ◽  
Tung Thanh Le ◽  
Thi Gai Le ◽  
Canh Trung Le ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Near Infrared ◽  
Cost Effective ◽  
Fused Silica ◽  
Fiber Structure ◽  
Normal Dispersion ◽  
Crystal Fiber ◽  
Crystal Fibers ◽  
Mode Area

This study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with chloroform as a new source of supercontinuum (SC) spectrum. We numerically study the guiding properties of the fiber structure in terms of characteristic dispersion and mode area of the fundamental mode. Based on the results, we optimized the structural geometries of the CHCl3-core photonic crystal fiber to support the broadband SC generations. The fiber structure with a lattice constant of 1 μm, a filling factor of 0.8, and the diameter of the first-ring air holes equaling 0.5 μm operates in all-normal dispersion. The SC with a broadened spectral bandwidth of 0.64 to 1.80 μm is formed by using a pump pulse with a wavelength of 850 nm, 120 fs duration, and power of 0.833 kW. That fiber would be a good candidate for all-fiber SC sources as cost-effective alternative to glass core fibers.

White-light supercontinuum generation with 60-ps pump pulses in a photonic crystal fiber

2001 ◽  
Vol 26 (17) ◽  
pp. 1356 ◽  
Author(s):  
Stéphane Coen ◽  
Alvin Hing Lun Chau ◽  
Rainer Leonhardt ◽  
John D. Harvey ◽  
Jonathan C. Knight ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
White Light ◽  
Supercontinuum Generation ◽  
Crystal Fiber
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