Low Voltage Tunable One Dimensional Photonic Crystal with Large Air Defects

2002 ◽  
Vol 722 ◽  
Author(s):  
Yasha Yi ◽  
Peter Bermel ◽  
Kazumi Wada ◽  
Xiaoman Duan ◽  
John D. Joannopoulos ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Wavelength Conversion ◽  
Low Voltage ◽  
Photonic Band Gap ◽  
Free Spectral Range ◽  
Electrostatic Force ◽  
One Dimensional ◽  
Resonant Structures ◽  
Whole Process ◽  
Potential Applications

AbstractA one-dimensional Si/SiO2 photonic crystal with a large, tunable air defect cavity is fabricated. Multiple resonant modes are observed within the photonic band gap. The free spectral range (FSR) is large compared to other resonant structures, with more than 100nm bandwidth. Simultaneous low voltage tuning around two telecom wavelengths, 1.55μm and 1.3μm, is realized using electrostatic force. The whole process is at low temperature and can be CMOS compatible. Potential applications include switching, modulation, and wavelength conversion devices, particularly WDM devices.

Omnidirectional photonic band gap in magnetron sputtered TiO2/SiO2 one dimensional photonic crystal

2016 ◽  
Vol 599 ◽  
pp. 138-144 ◽  
Author(s):  
S. Jena ◽  
R.B. Tokas ◽  
P. Sarkar ◽  
J.S. Misal ◽  
S. Maidul Haque ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Band Gap ◽  
Photonic Band Gap ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Omnidirectional Photonic Band Gap ◽  
Photonic Band

Discrepancies in the free spectral range (FSR) of one-dimensional (1D) photonic crystal/photonic wire coupled-cavities

2020 ◽  
Vol 2 (4) ◽  
pp. 045008
Author(s):  
Mohd Nuriman Nawi ◽  
Dilla Duryha Berhanuddin ◽  
Marko Loncar ◽  
Mohd Adzir Mahdi ◽  
Richard M De La Rue ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Spectral Range ◽  
Free Spectral Range ◽  
One Dimensional ◽  
Coupled Cavities ◽  
1D Photonic Crystal ◽  
Photonic Wire

Preparation and Optical Properties of One-Dimensional Ag/SiOx Photonic Crystal

2014 ◽  
Vol 576 ◽  
pp. 27-31
Author(s):  
Gai Mei Zhang ◽  
Can Wang ◽  
Yan Jun Guo ◽  
Wang Wei ◽  
Xiao Xiang Song
Keyword(s):  
Photonic Crystal ◽  
Band Gap ◽  
Electromagnetic Waves ◽  
Photonic Band Gap ◽  
Incident Angle ◽  
One Dimensional ◽  
The One ◽  
Photonic Band ◽  
Gap Width ◽  
Band Gap Width

The photonic crystal has the property that electromagnetic waves with interval of frequency in photonic band gap (PBG) can not be propagated, so it has important applying and researching value. The traditional one-dimensional photonic crystal is with narrow band gap width, and the reflection within the band is small, especially the band gap is sensitive to the incident angle and the polarization of light. A new photonic band gap (PBG) structure, metallodielectric photonic crystal by inserting metal film in the medium can overcomes the shortcomings mentioned above. The one-dimensional Ag/SiOx photonic crystal was prepared, and theoretical and experimental researches were developed. The results show that photonic band gap appears gradually and the band gap width increase with increasing of period of repeating thickness. With the thickness of Ag film increasing, the band gap width increases, but the starting wavelength of the photonic band gap keeps unchanged. With thickness of SiOx film increasing, the band gap width of photonic band gap also increases, but it is not obvious and starting wavelength increases.

Simulation of the Photonic Band Gap of One-Dimensional Photonic Crystal and Experimental Study in Microwave Region

2009 ◽  
Vol 29 (8) ◽  
pp. 2313-2316
Author(s):  
王骥 Wang Ji ◽  
林青勇 Lin Qingyong ◽  
顾春晖 Gu Chunhui ◽  
龚俊锋 Gong Junfeng
Keyword(s):  
Experimental Study ◽  
Photonic Crystal ◽  
Band Gap ◽  
Photonic Band Gap ◽  
Microwave Region ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Photonic Band

NEGATIVE REFRACTION IN A ONE-DIMENSIONAL BIAXIALLY ANISOTROPIC CHIRAL PHOTONIC CRYSTAL

2010 ◽  
Vol 24 (11) ◽  
pp. 1079-1090 ◽  
Author(s):  
YUAN YOU
Keyword(s):  
Photonic Crystal ◽  
Significant Influence ◽  
Negative Refraction ◽  
Dielectric Material ◽  
Negative Group ◽  
One Dimensional ◽  
Polarized Waves ◽  
Potential Applications ◽  
Electromagnetic Transport ◽  
Group Velocities

In the transfer matrix framework of electromagnetic transport, we calculate the group velocities in a one-dimensional photonic crystal composed of a biaxially anisotropic chiral material and dielectric material. According to the isofrequency curves, it is unravelled that two polarized waves possess negative group velocities. As a result, negative refraction can be achieved in the present configuration. In addition, the chirality has a significant influence on the group velocities in the biaxially anisotropic chiral photonic crystal, which even causes the group velocities to change from positive to negative. Our investigations may have potential applications in the chiral-based negative refraction devices.

Analysis of Position-Dependent Extraordinary Optical Properties in Near-Zero-Permittivity Range for a One-Dimensional Superconducting Photonic Crystal

2013 ◽  
Vol 401-403 ◽  
pp. 929-932
Author(s):  
Ji Jiang Wu ◽  
Jin Xia Gao
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Relative Position ◽  
Dielectric Layer ◽  
Reflectance Spectrum ◽  
Photonic Band Gap ◽  
One Dimensional ◽  
Dielectric Layers ◽  
Photonic Band ◽  
Superconducting Photonic Crystal

The position-dependent extraordinary optical properties in near-zero-permittivity range for a one-dimensional superconducting photonic crystal consisting of alternating superconductor and dielectric layers are theoretically investigated by using the transfer matrix method. Based on the calculated reflectance spectrum, it is shown the extraordinary optical propriety depends on the relative position between the threshold wavelength and the photonic band gap. By suitably choosing the thickness of the superconducting or dielectric layer, one can design a transmission narrowband filter or resonator to satisfy their needs without introducing any physical defect in a superconducting photonic crystal.

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