【摘 要】
:
We investigate spatial control of light based on the fractional Schr(o)dinger equation(FSE).In a FSE with a harmonic potential,we find that the propagation of one-and two-dimensional input chirped Gau
【机 构】
:
Xi'an Jiaotong Univ China Texas A&M University a
【出 处】
:
2016年第二届光子学与光学工程国际会议暨第八届西部光子学会议
论文部分内容阅读
We investigate spatial control of light based on the fractional Schr(o)dinger equation(FSE).In a FSE with a harmonic potential,we find that the propagation of one-and two-dimensional input chirped Gaussian beams is not harmonic.In one dimension,the beam propagates along a zigzag trajectory in real space,which corresponds to a modulated anharmonic oscillation in momentum space.In two dimensions,the input Gaussian beam evolves into a breathing ring structure in both real and momentum spaces,which forms a filamented funnel-like aperiodic structure.The beams remain localized during propagation.If the FSE carries a PT-symmetric potential,at a critical point,the band structure becomes linear and symmetric in the one-dimensional case,which results in a nondiffracting propagation and conical diffraction of input beams.For a potential-free FSE,the input Gaussian beams are diffractionless and display uniform propagation.
其他文献
Thermal therapy is an approach applied in cancer treatment by heating local tissue to kill the tumor cells,which requires a high sensitivity of temperature monitoring during therapy.And methods curren
A new method named as Segment-Compound baffle design method was proposed in this paper.Compared with conventional methods,this new method could perform better in inhibit stay light more effectively an
The propagation characteristics of the circular Airy beam(CAB)with low-pass filtering modification is investigated in details in this paper.Based on a modification of the angular spectrum of CAB,we ge
In phase measurement systems that useing phase-shifting techniques,the inconsistent background components between the phase shift fringe patterns and the nonsinusoidal waveforms of the fringe pattern,
Microhole collapse property of polarization maintaining photonic crystal fibers(PM-PCF)and its effect on the splice loss and polarization cross-coupling during fusion splicing were investigated.The re
The accuracy of numerical reconstruction phase directly affect the result of the digital holographic detection.Because the microscope objective causes additional secondary phase factor,resulting in ph
The imagrs of outdoor scenes obtained in haze,fog and other weather phenomena are usually have poor contrast and color fidelity.in order to get a clear view of the image taken under bad weather,this p
For high-resolution digital holography,a large amount of redundant data processing and analysis will follow burden.Compressed sensing technology is used to process the hologram by analyzing the compre
A practical aspheric non-null testing method of combining numerical simulation with real interferometric testing was proposed.Numerical simulation and analysis of using three typical spherical referen
A liquid-crystal-filled polymer photonic crystal fiber is designed and numerically analysised for terahertz wave guiding.Bandgap-guiding terahertz fiber is obtained by infiltrating the cladding air ho