Design of second order grating couplers to detect the angle and polarization of the laser beam

2012 ◽  
Author(s):  
Tapas Kumar Saha ◽  
Mingyu Lu ◽  
Deyin Zhao ◽  
Zhenqiang Ma ◽  
Weidong Zhou
Keyword(s):  
Laser Beam ◽  
Second Order ◽  
Grating Couplers

THE EXPERIMENTALLY OBSERVED OPTICAL COTTON–MOUTON EFFECT: EVIDENCE FOR THE PHOTON'S LONGITUDINAL MAGNETIC FIELD, B(3)

1993 ◽  
Vol 07 (19) ◽  
pp. 1247-1251 ◽  
Author(s):  
M. W. EVANS
Keyword(s):  
Magnetic Field ◽  
Laser Beam ◽  
Flux Density ◽  
Experimental Observation ◽  
Longitudinal Magnetic Field ◽  
Laser Intensity ◽  
Longitudinal Component ◽  
Second Order ◽  
Permanent Magnetic Field ◽  
Classical Counterpart

The recent experimental observation of the optical Cotton–Mouton effect is consistent with the induction of magnetization by the longitudinal component of the photon's magnetic field, whose classical counterpart is the equivalent flux density B(3). In the optical Cotton–Mouton effect observed by Zon et al.,16 the field B(3) acts at second order and is independent of the polarization of the inducing laser beam propagating parallel to a permanent magnetic field. The optical Cotton–Mouton effect is therefore proportional to the laser intensity as observed.16

Relation between second-order moment radius of focal spot and near field distribution of laser beam

2011 ◽  
Vol 23 (6) ◽  
pp. 1449-1453 ◽  
Author(s):  
高学燕 Gao Xueyan ◽  
苏毅 Su Yi ◽  
叶一东 Ye Yidong ◽  
关有光 Guan Youguang
Keyword(s):  
Laser Beam ◽  
Field Distribution ◽  
Focal Spot ◽  
Near Field ◽  
Second Order ◽  
Order Moment

Second order effects of aspect ratio variations in high sensitivity grating couplers

2007 ◽  
Vol 84 (5-8) ◽  
pp. 1775-1778 ◽  
Author(s):  
N. Darwish ◽  
L. Diéguez ◽  
M. Moreno ◽  
F. Muñoz ◽  
R. Mas ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Sensitivity ◽  
Second Order ◽  
Order Effects ◽  
Grating Couplers ◽  
Second Order Effects

Orbital angular momentum of the laser beam and the second order intensity moments

2000 ◽  
Vol 43 (12) ◽  
pp. 1306-1311 ◽  
Author(s):  
Chunqing Gao ◽  
Guanghui Wei ◽  
Horst Weber
Keyword(s):  
Angular Momentum ◽  
Laser Beam ◽  
Orbital Angular Momentum ◽  
Second Order
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