scholarly journals Electric field detection of phase-locked near-infrared pulses using photoconductive antenna

2013 ◽  
Vol 21 (14) ◽  
pp. 16248 ◽  
Author(s):  
I. Katayama ◽  
R. Akai ◽  
M. Bito ◽  
E. Matsubara ◽  
M. Ashida
Keyword(s):  
Electric Field ◽  
Near Infrared ◽  
Photoconductive Antenna ◽  
Field Detection

High-performance near-infrared photodetectors based on C3N quantum dots integrated with single-crystal graphene

2021 ◽  
Author(s):  
Yun Zhao ◽  
Xiaoqiang Feng ◽  
Menghan Zhao ◽  
Xiaohu Zheng ◽  
Zhiduo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electric Field ◽  
Single Crystal ◽  
High Performance ◽  
Near Infrared ◽  
Fast Response ◽  
Local Electric Field ◽  
Infrared Photodetectors ◽  
Photocurrent Response

Employing C3N QD-integrated single-crystal graphene, photodetectors exhibited a distinct photocurrent response at 1550 nm. The photocurrent map revealed that the fast response derive from C3N QDs that enhanced the local electric field near graphene.

The Time Response of Exponential Doping NEA InGaAs Photocathode Applied to near Infrared Streak Cameras

2011 ◽  
Vol 415-417 ◽  
pp. 1403-1406
Author(s):  
Wei Dong Tang ◽  
Wen Zheng Yang ◽  
Zhi Peng Cai ◽  
Chuan Dong Sun
Keyword(s):  
Electric Field ◽  
Quantum Efficiency ◽  
Active Layer ◽  
Near Infrared ◽  
Streak Camera ◽  
Numerical Results ◽  
Time Response ◽  
Transport Time ◽  
Minority Carriers

An exponential doping NEA InGaAs photocathode is theoretically proposed to apply in the near infrared streak camera. The photocathode time response is calculated and analyzed by using a photoelectron non-steady method. The numerical results show that the excited electrons in the InGaAs active layer is accelerated due to the built-in electric field induced by the exponential doping structure, which shortens the transport time of minority carriers in the photocathode and thus, the time response is greatly improved. In addition, the exponential doping InGaAs photocathode possesses time response of less than 10 picoseconds and near-infrared quantum efficiency of 10%.

LDRD REPORT 2021: HIGH-SENSITIVITY ELECTRIC FIELD DETECTION BASED ON GAS POLARIZATION

2021 ◽  
Author(s):  
KIMBERLY FESSLER ◽  
DALE HITCHCOCK ◽  
JAY GAILLARD ◽  
WILLIS JONES ◽  
JASON DARVIN ◽  
...  
Keyword(s):  
Electric Field ◽  
High Sensitivity ◽  
Field Detection

scholarly journals Near-infrared holographic photorefractive recording under applied electric field in undoped Bi12TiO20 sillenite crystal

2020 ◽  
Vol 108 ◽  
pp. 110398
Author(s):  
André L. Moura ◽  
Alexsandro F. Pereira ◽  
Askery Canabarro ◽  
Jesiel F. Carvalho ◽  
Ivan de Oliveira ◽  
...  
Keyword(s):  
Electric Field ◽  
Applied Electric Field ◽  
Near Infrared ◽  
Sillenite Crystal

scholarly journals Promoting luminescence of Yb/Er codoped ferroelectric composite by polarization engineering for optoelectronic applications

Nanophotonics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 2215-2223 ◽  
Author(s):  
Er Pan ◽  
Gongxun Bai ◽  
Yutao Peng ◽  
Liang Chen ◽  
Shiqing Xu
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Electrical Resistance ◽  
Near Infrared ◽  
Optoelectronic Devices ◽  
Glass Ceramics ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Luminescent Materials ◽  
Crystal Structural

AbstractFerroelectric oxide nanocrystals, in combination with the robust coupling of an electric field with crystal structure symmetry, makes such systems agreeable to field-induced crystal structural transformation. The luminescent properties of rare earth ions are sensitive to the symmetry of the surrounding crystal field. The luminescence tuning of rare earth ions is an important assignment in the research of luminescent materials. However, the current conditional feasibility and reversibility in the exploration of luminescence modification remain major challenges. In this article, the luminescence modulation of rare earth ions has been developed in Yb3+/Er3+ codoped ferroelectrics glass ceramics containing Bi4Ti3O12 nanocrystals through an electric field. The inclusion of nanocrystals in the glass matrix greatly enhances the electrical resistance. Both upconversion and near-infrared emissions of rare earth ions are effectively enhanced more than twice via polarization engineering. The electric field regulates the photonic properties of rare earth ions with excellent reversibility and nonvolatility in ferroelectrics. The effective modification by electric field provides a new scheme for optical storage and optoelectronic devices.

Electric field controlled near-infrared high-speed electro-optic switching modulator integrated with 2D MgO

2020 ◽  
Vol 45 (16) ◽  
pp. 4611 ◽  
Author(s):  
Ch. N. Rao ◽  
Dnyandeo Pawar ◽  
Umesh T. Nakate ◽  
Radhamanohar Aepuru ◽  
XingGao Gui ◽  
...  
Keyword(s):  
Electric Field ◽  
High Speed ◽  
Near Infrared ◽  
Electro Optic
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