Demonstration of tunable complex refractive index of graphene covered one dimensional photonic crystals

2018 ◽  
Vol 50 (4) ◽  
Author(s):  
S. M. Hamidi ◽  
M. Mahboubi ◽  
S. M. Mohseni ◽  
B. Azizi ◽  
A. Ghaderi ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Complex Refractive Index ◽  
One Dimensional

scholarly journals Tantalum Arsenide-Based One-Dimensional Photonic Structures

Ceramics ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 139-144 ◽  
Author(s):  
Ilka Kriegel ◽  
Michele Guizzardi ◽  
Francesco Scotognella
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Complex Refractive Index ◽  
Three Dimensional ◽  
Infrared Region ◽  
Linear Dispersion ◽  
One Dimensional ◽  
The Real ◽  
Weyl Semimetals ◽  
Very High

Weyl semimetals can be described as the three-dimensional analogue of graphene, showing linear dispersion around nodes (Weyl points). Tantalum arsenide is among the most studied Weyl semimetals. It has been demonstrated that TaAs has a very high value of the real part of the complex refractive index in the infrared region. In this work we show one-dimensional photonic crystals alternating TaAs with SiO2 or TiO2 and a microcavity where a layer of TaAs is embedded between two SiO2-TiO2 multilayers.

Manipulation of thermal radiation by using photonic crystals

2021 ◽  
pp. 2150262
Author(s):  
Azka Umar ◽  
Chun Jiang
Keyword(s):  
Numerical Simulation ◽  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Thermal Emission ◽  
Heat Energy ◽  
Radiation Loss ◽  
One Dimensional ◽  
Waveguide Core ◽  
Low Refractive Index

This paper focuses on manipulating thermal emission and radiation loss of heat energy in a heat waveguide. A One-Dimensional Photonic Crystal is used as a waveguide clad to prohibit the thermal emission from escaping. The model may reduce the radiation loss of heat energy in the waveguide core, and heat energy can be confined to propagate along the waveguide’s longitude axis. The waveguide clad comprises alternative layers of high and low refractive index materials containing sufficient electromagnetic stop bands to trap the thermal emission from escaping out of the waveguide. The numerical simulation of the model shows that the forbidden bandgap of photonic crystal structures with alternative layers of silica and silicon has width enough to make heat energy be confined within the waveguide core so that efficient heat energy transmission can be achieved along the longitude axis of the waveguide.

Single-Frequency Refractive Index Sensor Based on a Finite One-Dimensional Photonic Crystals with Two Defects

2006 ◽  
Vol 45 (8B) ◽  
pp. 6754-6758 ◽  
Author(s):  
H. Alatas ◽  
H. Mayditia ◽  
H. Hardhienata ◽  
A. A. Iskandar ◽  
M. O. Tjia
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Single Frequency ◽  
Refractive Index Sensor ◽  
One Dimensional

Transmission spectra of one-dimensional photonic crystals including negative-refractive-index media

2005 ◽  
Vol 1 (3) ◽  
pp. 201-204 ◽  
Author(s):  
Xiao-ming Shen ◽  
Xian-feng Chen ◽  
Mei-ping Jiang ◽  
Du-fang Shi
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Negative Refractive Index ◽  
Transmission Spectra ◽  
One Dimensional

One Dimensional Photonic Crystals Using Ultrahigh Refractive Index Chalcogenide Hybrid Inorganic/Organic Polymers

2018 ◽  
Vol 7 (7) ◽  
pp. 875-880 ◽  
Author(s):  
Tristan S. Kleine ◽  
Liliana Ruiz Diaz ◽  
Katrina M. Konopka ◽  
Laura E. Anderson ◽  
Nicholas G. Pavlopolous ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Organic Polymers ◽  
One Dimensional ◽  
Inorganic Organic Polymers
Sign in / Sign up

Export Citation Format

Share Document