scholarly journals Photonic Stopband Filters Based on Graphene-Pair Arrays

2021 ◽  
Vol 11 (23) ◽  
pp. 11557
Author(s):  
Dong Zhao ◽  
Liyan Wang ◽  
Fangmei Liu ◽  
Dong Zhong ◽  
Min Wu
Keyword(s):  
Chemical Potential ◽  
Incident Angle ◽  
Graphene Sheets ◽  
Spatial Period ◽  
Compound System ◽  
Photonic Band Structure ◽  
Photonic Bandgaps ◽  
Bulk Substrate ◽  
Photonic Band ◽  
Incident Frequency

We investigate the photonic bandgaps in graphene-pair arrays. Graphene sheets are installed in a bulk substrate to form periodical graphene photonic crystal. The compound system approves a photonic band structure as a light impinges on it. Multiple stopbands are induced by changing the incident frequency of light. The stopbands widths and their central frequencies could be modulated through the graphene chemical potential. The number of stopbands decreases with the increase in the spatial period of graphene pairs. Otherwise, two full passbands are realized in the parameter space composed of the incident angle and the light frequency. This investigation has potentials applied in tunable multi-stopbands filters.

Photonic band structure and defects in one and two dimensions

1993 ◽  
Vol 10 (2) ◽  
pp. 314 ◽  
Author(s):  
D. R. Smith ◽  
S. L. McCall ◽  
P. M. Platzman ◽  
R. Dalichaouch ◽  
N. Kroll ◽  
...  
Keyword(s):  
Band Structure ◽  
Two Dimensions ◽  
Photonic Band Structure ◽  
Photonic Band

scholarly journals Photonic resonator interferometric scattering microscopy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Nantao Li ◽  
Taylor D. Canady ◽  
Qinglan Huang ◽  
Xing Wang ◽  
Glenn A. Fried ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Scattered Light ◽  
Near Field ◽  
Field Enhancement ◽  
Protein Detection ◽  
Significant Loss ◽  
Photonic Band Structure ◽  
Large Intensity ◽  
Photonic Band ◽  
Intensity Contrast

AbstractInterferometric scattering microscopy is increasingly employed in biomedical research owing to its extraordinary capability of detecting nano-objects individually through their intrinsic elastic scattering. To significantly improve the signal-to-noise ratio without increasing illumination intensity, we developed photonic resonator interferometric scattering microscopy (PRISM) in which a dielectric photonic crystal (PC) resonator is utilized as the sample substrate. The scattered light is amplified by the PC through resonant near-field enhancement, which then interferes with the <1% transmitted light to create a large intensity contrast. Importantly, the scattered photons assume the wavevectors delineated by PC’s photonic band structure, resulting in the ability to utilize a non-immersion objective without significant loss at illumination density as low as 25 W cm−2. An analytical model of the scattering process is discussed, followed by demonstration of virus and protein detection. The results showcase the promise of nanophotonic surfaces in the development of resonance-enhanced interferometric microscopies.

Extrinsic photonic band structure calculations of a doped semiconductor under an external magnetic field

2008 ◽  
Vol 372 (31) ◽  
pp. 5224-5228 ◽  
Author(s):  
Renlong Zhou ◽  
Xuewen Wang ◽  
Bingju Zhou ◽  
Yongyi Gao ◽  
Xiaojuan Liu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Band Structure ◽  
Photonic Band Structure ◽  
Band Structure Calculations ◽  
Photonic Band ◽  
Structure Calculations

Photonic band structure of colloidal crystal self-assembled in hollow core optical fiber

2005 ◽  
Vol 86 (12) ◽  
pp. 121106 ◽  
Author(s):  
Y. Lin ◽  
P. R. Herman ◽  
C. E. Valdivia ◽  
J. Li ◽  
V. Kitaev ◽  
...  
Keyword(s):  
Band Structure ◽  
Optical Fiber ◽  
Colloidal Crystal ◽  
Hollow Core ◽  
Photonic Band Structure ◽  
Self Assembled ◽  
Photonic Band

scholarly journals Effect of implementation of a Bragg reflector in the photonic band structure of the Suzuki-phase photonic crystal lattice

2008 ◽  
Vol 16 (12) ◽  
pp. 8509 ◽  
Author(s):  
Luis Javier Martinez ◽  
Alfonso Rodriguez Alija ◽  
Pablo Aitor Postigo ◽  
J. F. Galisteo-López ◽  
Matteo Galli ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Band Structure ◽  
Crystal Lattice ◽  
Bragg Reflector ◽  
Photonic Band Structure ◽  
Photonic Band

Photonic band structure for a superconductor-dielectric superlattice

2005 ◽  
Vol 432 (3-4) ◽  
pp. 133-139 ◽  
Author(s):  
Chien-Jang Wu ◽  
Mei-Soong Chen ◽  
Tzong-Jer Yang
Keyword(s):  
Band Structure ◽  
Photonic Band Structure ◽  
Photonic Band

Photonic Band Structure of fcc Colloidal Crystals

1996 ◽  
Vol 76 (2) ◽  
pp. 315-318 ◽  
Author(s):  
İ. İnanç Tarhan ◽  
George H. Watson
Keyword(s):  
Band Structure ◽  
Colloidal Crystals ◽  
Photonic Band Structure ◽  
Photonic Band
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