A Novel Approach to Realize of All Optical Frequency Encoded Dibit Based XOR and XNOR Logic Gates Using Optical Switches with Simulated Verification

2018 ◽  
Vol 124 (3) ◽  
pp. 337-342 ◽  
Author(s):  
B. Ghosh ◽  
S. Hazra ◽  
N. Haldar ◽  
D. Roy ◽  
S. N. Patra ◽  
...  
Keyword(s):  
Logic Gates ◽  
Optical Switches ◽  
Optical Frequency ◽  
Novel Approach ◽  
All Optical

scholarly journals Tunable Optical Bistability, Tristability and Multistability in Arrays of Graphene

2020 ◽  
Vol 10 (17) ◽  
pp. 5766
Author(s):  
Xiuju Zhao ◽  
Bin Xu ◽  
Xiangna Kong ◽  
Dong Zhong ◽  
Ming Fang ◽  
...  
Keyword(s):  
Optical Bistability ◽  
Chemical Potential ◽  
Incident Light ◽  
Logic Gates ◽  
Optical Switches ◽  
Optical Logic ◽  
Incident Intensity ◽  
Incident Wavelength ◽  
All Optical ◽  
Potential Applications

The optical bistability, tristability and multistability are explored in arrays of graphene. The arrays are periodically arranged spatially by single sheets of graphene. Optical bistability could be achieved with a strong enough incident intensity of light wave. The thresholds of optical bistability and the intervals between the upper and lower thresholds change with the surface conductivity of graphene and the incident wavelength. By increasing the intensity of incident light, tristability and multistability can be induced as well. Furthermore, the thresholds of bistability, tristability and multistability can be regulated via the chemical potential of graphene. This study may have potential applications in optical logic gates, all-optical switches and photomemory.

Realization of all-optical frequency-encoded dibit-based OR and NOR logic gates with simulated verification

2017 ◽  
pp. 153-158
Author(s):  
Pratim Sarkar Partha ◽  
Smita Hazra ◽  
Bitan Ghosh ◽  
Sankar Narayan Patra ◽  
Sourangshu Mukhopadhyay
Keyword(s):  
Logic Gates ◽  
Optical Frequency ◽  
All Optical
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