scholarly journals Tuning photoinduced terahertz conductivity in monolayer graphene: Optical-pump terahertz-probe spectroscopy

2014 ◽  
Vol 90 (16) ◽  
Author(s):  
Srabani Kar ◽  
Dipti R. Mohapatra ◽  
Eric Freysz ◽  
A. K. Sood
Keyword(s):  
Monolayer Graphene ◽  
Optical Pump ◽  
Probe Spectroscopy ◽  
Terahertz Conductivity

Evolution of terahertz conductivity in ZnSe nanocrystal investigated with optical-pump terahertz-probe spectroscopy

2014 ◽  
Vol 116 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Gaofang Li ◽  
Xin Xue ◽  
Xian Lin ◽  
Sannan Yuan ◽  
Naiyun Tang ◽  
...  
Keyword(s):  
Optical Pump ◽  
Probe Spectroscopy ◽  
Terahertz Conductivity

Tunable terahertz photoconductivity of hydrogen functionalized graphene using optical pump-terahertz probe spectroscopy

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14321-14330 ◽  
Author(s):  
Srabani Kar ◽  
Dipti R. Mohapatra ◽  
A. K. Sood
Keyword(s):  
Spectral Dependence ◽  
Monolayer Graphene ◽  
Functionalized Graphene ◽  
Optical Pump ◽  
Quantitative Understanding ◽  
Probe Spectroscopy ◽  
Different Levels

We show that the terahertz photoconductivity of monolayer graphene following 800 nm femtosecond optical pump excitation can be tuned by different levels of hydrogenation (graphane) and provide a quantitative understanding of the unique spectral dependence of photoconductivity.

Limits of Charge Carrier Transport in Halide Perovskites Revealed by Optical-Pump Terahertz-Probe Spectroscopy

2019 ◽  
Author(s):  
Hannes Hempel ◽  
Andrei Petsiu ◽  
Martin Stolterfoht ◽  
Pascal Becker ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Transport ◽  
Charge Carrier Transport ◽  
Optical Pump ◽  
Halide Perovskites ◽  
Probe Spectroscopy

Dirac Surface Plasmons in Photoexcited Bismuth Telluride Nanowires : Optical Pump-Terahertz Probe Spectroscopy

Nanoscale ◽  
2021 ◽  
Author(s):  
Mithun K P ◽  
Srabani Kar ◽  
Abinash Kumar ◽  
Victor Suvisesha Muthu Dharmaraj ◽  
Ravishankar Narayanan ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Bismuth Telluride ◽  
Topological Insulators ◽  
Collective Excitation ◽  
Optical Pump ◽  
Time Resolved ◽  
Mid Infrared ◽  
Plasmonic Materials ◽  
Probe Spectroscopy

Collective excitation of Dirac plasmons in graphene and topological insulators have opened new possibilities of tunable plasmonic materials ranging from THz to mid-infrared regions. Using time resolved Optical Pump -...

Photocarriers dynamics in silicon wafer studied with optical-pump terahertz-probe spectroscopy

2012 ◽  
Vol 285 (20) ◽  
pp. 4102-4106 ◽  
Author(s):  
Gaofang Li ◽  
Dong Li ◽  
Zuanming Jin ◽  
Guohong Ma
Keyword(s):  
Silicon Wafer ◽  
Optical Pump ◽  
Probe Spectroscopy
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