Enhanced ODR range using exponentially graded refractive index profile of 1D binary photonic crystal

Journal Article · Fri May 06 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946718· OSTI ID:22606673

Sharma, Sanjeev; Kumar, Rajendra ^[1]; Jain, Deepti ^[2]; Kumar, Arun ^[3]

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1. Department of Physics, Gurukul Kangri Vishwavidyalaya Haridwar, Uttarakhand, India, PIN-249404 (India)
2. Department of Physics S.K.K.J.(P.G) College Khatauli, Muzaffarnagar, Uttar Pradesh, India, Pin-251201 (India)
3. AITEM, Amity University, Noida (India)

A simple design of broadband one dimensional dielectric/semiconductor multilayer structure having refractive index profile of exponentially graded material has been proposed. The theoretical analysis shows that the proposed structure works as a perfect mirror within a certain wavelength range (1550 nm). In order to calculate the reflection properties a transfer matrix method (TMM) has been used. This property shows that binary graded photonic crystal structures have widened omnidirectional reflector (ODR) bandgap. Hence a exponentially graded photonic crystal structure can be used as a broadband optical reflector and the range of reflection can be tuned to any wavelength region by varying the refractive index profile of exponentially graded photonic crystal structure.

• OSTI ID: 22606673
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1728; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL STRUCTURE
CRYSTALS
DIELECTRIC MATERIALS
LAYERS
ONE-DIMENSIONAL CALCULATIONS
REFLECTION
REFRACTIVE INDEX
SEMICONDUCTOR MATERIALS
TRANSFER MATRIX METHOD
WAVELENGTHS