Nonreciprocal normal-incidence lateral shift for transmitted wave beams through the magnetic photonic crystal slab

2020 ◽  
Vol 116 (7) ◽  
pp. 071104 ◽  
Author(s):  
Hui Ma ◽  
Rui-Xin Wu
Keyword(s):  
Photonic Crystal ◽  
Normal Incidence ◽  
Lateral Shift ◽  
Transmitted Wave ◽  
Photonic Crystal Slab ◽  
Magnetic Photonic Crystal

scholarly journals Shifting beams at normal incidence via controlling momentum-space geometric phases

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jiajun Wang ◽  
Maoxiong Zhao ◽  
Wenzhe Liu ◽  
Fang Guan ◽  
Xiaohan Liu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Momentum Space ◽  
Geometric Phase ◽  
Phase Distribution ◽  
Periodic Structures ◽  
Incident Beam ◽  
Normal Incidence ◽  
Large Shift ◽  
Practical Applications ◽  
Photonic Crystal Slab

AbstractWhen hitting interfaces between two different media, light beams may undergo small shifts. Such beam shifts cannot be described by the geometrical optics based on Snell’s law and their underlying physics has attracted much attention. Conventional beam shifts like Goos-Hänchen shifts and Imbert-Fedorov shifts not only require obliquely incident beams but also are mostly very small compared to the wavelength and waist size of the beams. Here we propose a method to realize large and controllable polarization-dependent lateral shifts for normally incident beams with photonic crystal slabs. As a proof of the concept, we engineer the momentum-space geometric phase distribution of a normally incident beam by controlling its interaction with a photonic crystal slab whose momentum-space polarization structure is designed on purpose. The engineered geometric phase distribution is designed to result in a large shift of the beam. We fabricate the designed photonic crystal slab and directly observe the beam shift, which is ~5 times the wavelength and approaches the waist radius. Based on periodic structures and only requiring simple manipulation of symmetry, our proposed method is an important step towards practical applications of beam shifting effects.

Sensitive magnetic field sensor using 2D magnetic photonic crystal slab waveguide based on BIG/GGG structure

2017 ◽  
Vol 16 (2) ◽  
pp. 392-400 ◽  
Author(s):  
Rachid Deghdak ◽  
Mohamed Bouchemat ◽  
Mahieddine Lahoubi ◽  
Shengli Pu ◽  
Touraya Bouchemat ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Photonic Crystal ◽  
Magnetic Field Sensor ◽  
Slab Waveguide ◽  
Photonic Crystal Slab ◽  
Magnetic Photonic Crystal ◽  
Field Sensor

Bound states in the continuum in double-hole array perforated in a layer of photonic crystal slab

2019 ◽  
Vol 12 (12) ◽  
pp. 125002 ◽  
Author(s):  
Suxia Xie ◽  
Changzhong Xie ◽  
Song Xie ◽  
Jie Zhan ◽  
Zhijian Li ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Bound States ◽  
Hole Array ◽  
Photonic Crystal Slab ◽  
The Continuum

Photonic crystal slab made from porous silicon

2004 ◽  
Author(s):  
W. H. Zheng ◽  
P. Reece ◽  
M. Gal
Keyword(s):  
Photonic Crystal ◽  
Porous Silicon ◽  
Photonic Crystal Slab
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