【摘 要】
：
A three-dimensional model of the field in the vicinity of a spherical inclusion in fused silica illuminated by a laser beam is established based on Mie scattering theory,and intensity distributions of
【机 构】
：
Southwest University of Science and Technology,China
【出 处】
：
2014年光子与光学工程国际会议暨西部光子学学术会议
论文部分内容阅读
A three-dimensional model of the field in the vicinity of a spherical inclusion in fused silica illuminated by a laser beam is established based on Mie scattering theory,and intensity distributions of the scattered field modulated by the inclusion are studied.The effects of refractive index and the radius of inclusion on light intensity enhancement factor(LIEF)and the position of the maximum intensity are analyzed.The results show that modulation effect of inclusion can be considered ineffective when inclusion radius is below 40 nm.When the radius is above 40 nm,inclusions(voids,Al,Fe,ZrO2)act as positive or negative lenses for the incident laser.Maximum light intensity is two orders of magnitude larger than the incident wave intensity in some parts distance away from inclusion.For a non-dissipative inclusion,maximum LIEF increases with the increasing difference between refractive index of inclusion and fused silicon.With the increasing of refractive index,the point of the maximum intensity moves from the backward to the forward of the inclusion.For a dissipative inclusion,with the increasing of the imaginary part of the refractive index,real part of the refractive index has less effect on LIEF.LIEF increases with increasing radius,and the points of maximum intensity move from the forward to the backward of the inclusion.
其他文献
In this paper,an optical fiber multiplexing interferometric system including a Fizeau interferometer and a Michelson interferometer is designed for remote and high precision step height measurement.Th
The etching process of the high aspect ratio of silicon deep trench is the key technology in MEMS field.Having used Oxford Plasmalabsystem100 ICP-180 etcher and with SF6 and C4F8 as the etching gas,it
The fabrication studies of a closely packed monolayer polystyrene naonospheres arrays were performed on the p-GaN surface of a thin GaN-based light-emitting diodes.Based on a self-assembly of latex pa
The space-based astronomy telescope will observe ultra-faint objects whose brightness should be lower than 23th magnitude.To ensure telescope performance,very low system noise requirements need extrem
Novel Micro/nano photonic structures all comprise the goals for the next-generation smart artificial materials and devices.For examples,colors on butterfly wings and beetle shells are engendered by ph
Nanoimprint lithography(NIL)is considered as a promising technology for the next generation lithography owing to its low cost,high throughput and high resolution.Especially in Hard Disk Drive(HDD),LED
In order to overcome current crowding and reduce the injection current underneath the opaque p-pad electrode in AlGaInP-based light emitting diodes(LEDs),a modified novel LED structure with SiO2 curre
We introduced a generalized version of the transport of intensity equation from a partially coherent phase-space perspective that relates axial intensity derivative to the transverse divergence of the
We demonstrate a novel method which is simple,real-time,and non-destructive to measure the core diameter of a coaxial cylinder.An optical fiber is an example of coaxial cylinder.The diameter measureme
In femtosecond lasers,solid-state gain media and other optical components(such as output couplers)always introduce a certain amount of frequency-dependant positive dispersion in the cavity.Femtosecond