Room temperature plasmonic graphene hot electron bolometric photodetectors: A comparative analysis

2022 ◽  
Vol 131 (2) ◽  
pp. 023105
Author(s):  
Jacek Gosciniak ◽  
Jacob B. Khurgin
Keyword(s):  
Comparative Analysis ◽  
Room Temperature ◽  
Hot Electron

scholarly journals Comparative analysis of room temperature plasmonic graphene hot electron bolometric photodetectors

2020 ◽  
Author(s):  
Jacek Gosciniak ◽  
Jacob B. Khurgin
Keyword(s):  
Comparative Analysis ◽  
High Speed ◽  
Room Temperature ◽  
State Of The Art ◽  
Hot Electron ◽  
Hot Carrier ◽  
Scattering Time ◽  
Magnitude Increase ◽  
Bolometric Effect ◽  
Band Nonparabolicity

Abstract We appraise a waveguide-integrated plasmonic graphene photodetector based on the hot carrier photo-bolometric effect, with performance characterized simultaneously by high responsivity, on the scale of hundreds of A/W, and high speed on the scale of 100’s of GHz. Performance evaluation is based on a theory of bolometric effect originating from the band nonparabolicity of graphene. Results compare favorably with the state-of-the-art plasmonic bolometric photodetectors, predicting up to two orders of magnitude increase in a responsivity while keeping speed on the same level, defined by the electron-lattice scattering time in graphene.

scholarly journals Time dependence of the luminescence intensity in CdBr2: AgCl,PbBr2 crystals under N2-laser excitation at room temperature

2014 ◽  
Vol 32 (4) ◽  
pp. 604-609 ◽  
Author(s):  
I. Bolesta ◽  
B. Kalivoshka ◽  
I. Karbovnyk ◽  
V. Lesivtsiv ◽  
I. Novosad ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Cross Section ◽  
Empirical Model ◽  
Room Temperature ◽  
Laser Excitation ◽  
Photochemical Reactions ◽  
Luminescence Decay ◽  
Model Parameters ◽  
Suggested Model ◽  
Optical Luminescence

AbstractResults of optical-luminescence studies of polydoped photochromic CdBr2: AgCl,PbBr2 crystals are presented. It is shown that the luminescence decrease vs. time under N2-laser excitation in the range of A-band of Pb2+ absorption is due to photochemical reactions. The empirical model describing the decrease of the luminescence related to silver impurities due to photochemical processes is suggested. Model parameters (trapping cross-section — σ — and the amount of centres destroyed by irradiation — β) were determined using the comparative analysis of experimental and calculated luminescence decay curves.

Room-temperature operation of InGaAs-based hot-electron transistors

2005 ◽  
Author(s):  
T.S. Moise ◽  
A.C. Seabaugh ◽  
E.A. Beam ◽  
Y.-C. Kao ◽  
J.N. Randall
Keyword(s):  
Room Temperature ◽  
Hot Electron ◽  
Electron Transistors ◽  
Room Temperature Operation

Comparative analysis of hot-electron transport in AlGaN/GaN and AlGaN/AlN/GaN 2DEG channels

2005 ◽  
Vol 202 (5) ◽  
pp. 808-811 ◽  
Author(s):  
L. Ardaravičius ◽  
M. Ramonas ◽  
O. Kiprijanovic ◽  
J. Liberis ◽  
A. Matulionis ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Electron Transport ◽  
Hot Electron ◽  
Hot Electron Transport

Study on the Mechanism of Pores Deformation in Aluminium Composites under Hot and Cold Upsetting Processes

2017 ◽  
Vol 890 ◽  
pp. 8-11
Author(s):  
Ananthanarayanan Rajeshkannan
Keyword(s):  
Comparative Analysis ◽  
Strain Rate ◽  
Hot Deformation ◽  
Room Temperature ◽  
Initial Density ◽  
Hydraulic Press ◽  
Sintering Process ◽  
Cold Upsetting ◽  
Aspect Ratios ◽  
Pore Closure

Pore closure behavior in sintered Al-4Fe3C and Al-4Fe3C-2Cu composite preforms were studied under cold and hot deformation conditions. Preforms of 0.2 aspect ratios with 85±1% initial density were prepared through compaction operation using 1 MN hydraulic press. For hot deformation, directly as sintered preforms are subjected to swaging operation to different strain rate. Preforms that are allowed to cool it to room temperature within the furnace after sintering process are subjected to cold upsetting till visible cracks appear on diametrical surface. The comparative analysis on pore closure against stress, strain, Poisson’s ratio and the stress formability index are performed.

Sign in / Sign up

Export Citation Format

Share Document