Propagation of nonlinear surface wave in linear-nonlinear optical waveguide structure

1992 ◽  
Vol 75 (10) ◽  
pp. 57-66 ◽  
Author(s):  
Shigeaki Ohke ◽  
Tokuo Umeda ◽  
Yoshio Cho
Keyword(s):  
Surface Wave ◽  
Optical Waveguide ◽  
Nonlinear Optical ◽  
Waveguide Structure ◽  
Nonlinear Surface

scholarly journals NONLINEAR OPTICAL WAVEGUIDE STRUCTURE FOR SENSOR APPLICATION: TM CASE

2007 ◽  
Vol 21 (30) ◽  
pp. 5075-5089 ◽  
Author(s):  
HALA M. KHALIL ◽  
MOHAMMED M. SHABAT ◽  
SOFYAN A. TAYA ◽  
MAZEN M. ABADLA
Keyword(s):  
Refractive Index ◽  
Theoretical Analysis ◽  
Closed Form ◽  
Optical Waveguide ◽  
Effective Refractive Index ◽  
Nonlinear Optical ◽  
Waveguide Structure ◽  
Analytical Expressions ◽  
Evanescent Waveguide ◽  
Waveguide Sensor

In this work, we present an extensive theoretical analysis of nonlinear optical waveguide sensor. The waveguide under consideration consists of a thin dielectrica film surrounded by a self-focused nonlinear cladding and a linear substrate. The nonlinearity of the cladding is considered to be of Kerr-type. Both cases, when the effective refractive index is greater and when it is smaller than the index of the guiding layer, are discussed. The sensitivity of the effective refractive index to any change in the cladding index in evanescent optical waveguide sensor is derived for TM modes. Closed form analytical expressions and normalized charts are given to provide the conditions required for the sensor to exhibit its maximum sensitivity. The results are compared with those of the well-known linear evanescent waveguide sensors.

Simulation of nonlinear optical waveguide structure by using FDTD technique

2003 ◽  
Author(s):  
Mohammed M. Shabat ◽  
Nafez M. Barakat ◽  
Samia Al-Azab ◽  
Dieter Jager
Keyword(s):  
Optical Waveguide ◽  
Nonlinear Optical ◽  
Waveguide Structure

Nonlinear surface wave measurements on aged and laser shock surface-treated Inconel 718 superalloy

2021 ◽  
Vol 121 ◽  
pp. 102457
Author(s):  
Vania M. Rodríguez-Herrejón ◽  
Alberto Ruiz ◽  
Carlos Rubio-González ◽  
Víctor H. López-Morelos ◽  
Jin-Yeon Kim ◽  
...  
Keyword(s):  
Surface Wave ◽  
Inconel 718 ◽  
Laser Shock ◽  
Shock Surface ◽  
Wave Measurements ◽  
Inconel 718 Superalloy ◽  
Nonlinear Surface

scholarly journals A nanograting-based flexible and stretchable waveguide for tactile sensing

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Wang Peng ◽  
Qingxi Liao ◽  
Han Song
Keyword(s):  
Optical Waveguide ◽  
Optical Materials ◽  
Mechanical Deformation ◽  
Waveguide Structure ◽  
Tactile Sensing ◽  
Force Detection ◽  
Detection Range ◽  
Molding Method ◽  
Light Loss ◽  
External Force Detection

AbstractBased on the related characteristics of optical waveguide and flexible optical materials, a flexible and stretchable optical waveguide structure oriented to tactile perception is proposed. The sensing principle of optical waveguide is based on mechanical deformation caused by output light loss. It overcomes the shortcomings of traditional optical waveguide devices, which are unable to conform to irregular surface. The flexible and stretchable optical waveguide is fabricated with nanoreplica molding method, and it has been applied to the measurement of pressure and strain in the field of tactile sensing. The flexible and stretchable optical waveguide had a strain detection range of 0 to 12.5%, and the external force detection range is from 0 to 23 × 10–3 N.

scholarly journals Four-wave mixing and enhanced analog Hawking effect in a nonlinear optical waveguide

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Scott Robertson ◽  
Charles Ciret ◽  
Serge Massar ◽  
Simon-Pierre Gorza ◽  
Renaud Parentani
Keyword(s):  
Optical Waveguide ◽  
Nonlinear Optical ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Hawking Effect

scholarly journals Design of an Edge Slotted Waveguide Antenna Array Based on T-Shaped Cross-Section Waveguide

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Teng Li ◽  
Wenbin Dou
Keyword(s):  
Surface Wave ◽  
Antenna Array ◽  
Cross Section ◽  
Mutual Coupling ◽  
Dominant Mode ◽  
Waveguide Structure ◽  
Center Frequency ◽  
Sidelobe Level ◽  
Slotted Waveguide ◽  
Shaped Cross Section

An edge slotted waveguide antenna array based on T-shaped cross-section radiating waveguide is proposed. The T-shaped waveguide is analyzed and designed to operate in dominant mode around the center frequency, which has a lower profile compared with the rectangular one. The radiating slots are etched and rotated alternatively on the broadened top plate without cutting into the adjacent walls. The metal fences are inserted between slots to reduce the mutual coupling and surface wave. Therefore, the sidelobe level in E-plane is well suppressed. A 2 × 8 antenna array working at Ka-band is designed and fabricated. The measured results agree well with simulations which demonstrate this novel waveguide structure.

Sign in / Sign up

Export Citation Format

Share Document