The Experts below are selected from a list of 56151 Experts worldwide ranked by ideXlab platform
X Fang - One of the best experts on this subject based on the ideXlab platform.
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femtosecond laser fabricated fiber bragg grating in microfiber for refractive index sensing
Optics Letters, 2010Co-Authors: X Fang, Changrui Liao, Dongning WangAbstract:Fiber Bragg grating (FBG) is fabricated in the microfiber by the use of femtosecond laser pulse irradiation. Such a grating can be directly exposed to the surrounding medium without etching or thinning treatment of the fiber, thus possessing high refractive index (RI) sensitivity while maintaining superior reliability. The grating in the microfiber may have a number of Propagation Modes in its transmission spectrum, depending on the fiber diameter, and the higher order of mode has larger RI sensitivity. The RI sensitivity also depends on the fiber diameter and a smaller diameter corresponds to a large sensitivity. The maximum sensitivity obtained is ~231.4 nm per refractive index unit at the refractive index value of ~1.44 when the fiber diameter is ~2 μm. The FBG fabricated in the microfiber has high potential in various types of optical fiber sensor applications.
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Femtosecond laser fabricated fiber Bragg grating in microfiber for refractive index sensing
Optics Letters, 2010Co-Authors: X Fang, C. R. Liao, D N WangAbstract:Fiber Bragg grating (FBG) is fabricated in the microfiber by the use of femtosecond laser pulse irradiation. Such a grating can be directly exposed to the surrounding medium without etching or thinning treatment of the fiber, thus possessing high refractive index (RI) sensitivity while maintaining superior reliability. The grating in the microfiber may have a number of Propagation Modes in its transmission spectrum, depending on the fiber diameter, and the higher order of mode has larger RI sensitivity. The RI sensitivity also depends on the fiber diameter and a smaller diameter corresponds to a large sensitivity. The maximum sensitivity obtained is approximately 231.4 nm per refractive index unit at the refractive index value of approximately 1.44 when the fiber diameter is approximately 2 microm. The FBG fabricated in the microfiber has high potential in various types of optical fiber sensor applications.
Dongning Wang - One of the best experts on this subject based on the ideXlab platform.
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femtosecond laser fabricated fiber bragg grating in microfiber for refractive index sensing
Optics Letters, 2010Co-Authors: X Fang, Changrui Liao, Dongning WangAbstract:Fiber Bragg grating (FBG) is fabricated in the microfiber by the use of femtosecond laser pulse irradiation. Such a grating can be directly exposed to the surrounding medium without etching or thinning treatment of the fiber, thus possessing high refractive index (RI) sensitivity while maintaining superior reliability. The grating in the microfiber may have a number of Propagation Modes in its transmission spectrum, depending on the fiber diameter, and the higher order of mode has larger RI sensitivity. The RI sensitivity also depends on the fiber diameter and a smaller diameter corresponds to a large sensitivity. The maximum sensitivity obtained is ~231.4 nm per refractive index unit at the refractive index value of ~1.44 when the fiber diameter is ~2 μm. The FBG fabricated in the microfiber has high potential in various types of optical fiber sensor applications.
D N Wang - One of the best experts on this subject based on the ideXlab platform.
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Femtosecond laser fabricated fiber Bragg grating in microfiber for refractive index sensing
Optics Letters, 2010Co-Authors: X Fang, C. R. Liao, D N WangAbstract:Fiber Bragg grating (FBG) is fabricated in the microfiber by the use of femtosecond laser pulse irradiation. Such a grating can be directly exposed to the surrounding medium without etching or thinning treatment of the fiber, thus possessing high refractive index (RI) sensitivity while maintaining superior reliability. The grating in the microfiber may have a number of Propagation Modes in its transmission spectrum, depending on the fiber diameter, and the higher order of mode has larger RI sensitivity. The RI sensitivity also depends on the fiber diameter and a smaller diameter corresponds to a large sensitivity. The maximum sensitivity obtained is approximately 231.4 nm per refractive index unit at the refractive index value of approximately 1.44 when the fiber diameter is approximately 2 microm. The FBG fabricated in the microfiber has high potential in various types of optical fiber sensor applications.
Mingyue Gui - One of the best experts on this subject based on the ideXlab platform.
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fabrication of a helical detonation channel effect of initial pressure on the detonation Propagation Modes of ethylene oxygen mixtures
Combustion and Flame, 2018Co-Authors: Zhenhua Pan, Jianfeng Pan, Penggang Zhang, Yuejin Zhu, Mingyue GuiAbstract:Abstract The effect of the initial gas mixture pressure on curved detonation Propagation Modes has been extensively investigated in the present study using a stoichiometric ethylene–oxygen mixture in a new experimental facility consisting of a straight channel section joined to a helical channel section. Flame Propagation through the helical channel was observed by high-speed CCD camera, and the trajectories of triple points on the detonation waves were obtained using a soot-deposition plate. The results clearly identify three detonation Propagation Modes, namely, a stabilized Propagation mode, critical mode, and non-stabilized Propagation mode, that vary according to the ratio of the radius of curvature of the inside wall ri to the normal detonation cell width λ. For the stabilized Propagation mode (ri/λ > 27), the detonation velocity at the inner wall in the curved section asymptotically approaches the detonation velocity in the straight section with increasing initial pressure due to competition between the weakening and strengthening effects characteristic of the curved channel geometry. A definite flame shape, which is perpendicular to the inner wall of the channel, is observed. For the critical mode (16 ≤ ri/λ ≤ 27), the shape of the flame front is observed to be more irregular and unstable than that of the stabilized Propagation mode. This mode can be considered as a transition zone, where the stabilized Propagation mode transits to the non-stabilized Propagation mode with decreasing initial pressure. For the non-stabilized Propagation mode (ri/λ
Changrui Liao - One of the best experts on this subject based on the ideXlab platform.
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femtosecond laser fabricated fiber bragg grating in microfiber for refractive index sensing
Optics Letters, 2010Co-Authors: X Fang, Changrui Liao, Dongning WangAbstract:Fiber Bragg grating (FBG) is fabricated in the microfiber by the use of femtosecond laser pulse irradiation. Such a grating can be directly exposed to the surrounding medium without etching or thinning treatment of the fiber, thus possessing high refractive index (RI) sensitivity while maintaining superior reliability. The grating in the microfiber may have a number of Propagation Modes in its transmission spectrum, depending on the fiber diameter, and the higher order of mode has larger RI sensitivity. The RI sensitivity also depends on the fiber diameter and a smaller diameter corresponds to a large sensitivity. The maximum sensitivity obtained is ~231.4 nm per refractive index unit at the refractive index value of ~1.44 when the fiber diameter is ~2 μm. The FBG fabricated in the microfiber has high potential in various types of optical fiber sensor applications.
