Influece of active region and resonator design on characteristics of microdisk lasers

2014 ◽  
Author(s):  
N.V. Kryzhanovskaya ◽  
M.V. Maximov ◽  
A.M. Nadtochiy ◽  
A.E. Zhukov ◽  
E.I. Moiseev ◽  
...  
Keyword(s):  
Active Region ◽  
Microdisk Lasers ◽  
Resonator Design

scholarly journals Influence of coating layers on characteristics of microdisk lasers with InAs/InGaAs quantum dots active region

2018 ◽  
Vol 1124 ◽  
pp. 041020
Author(s):  
I Y Agafonov ◽  
N V Kryzhanovskaya ◽  
E I Moiseev ◽  
A S Dragunova ◽  
M V Fetisova ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Active Region ◽  
Microdisk Lasers ◽  
Coating Layers

scholarly journals Использование микродисковых лазеров с квантовыми точками InAs/InGaAs для биодетектирования

2019 ◽  
Vol 45 (23) ◽  
pp. 10
Author(s):  
М.В. Фетисова ◽  
А.А. Корнев ◽  
А.С. Букатин ◽  
Н.А. Филатов ◽  
И.Е. Елисеев ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Monoclonal Antibodies ◽  
Active Region ◽  
Room Temperature ◽  
Optical Pumping ◽  
Threshold Power ◽  
Gaas Substrates ◽  
Microdisk Lasers ◽  
Resonant Laser ◽  
Secondary Antibodies

The paper demonstrates the possibility of using microdisk lasers 10 µm in diameter with an active region based on InAs/InGaAs quantum dots synthesized on GaAs substrates for biodetection. As a detectable object we used chimeric monoclonal antibodies to the CD20 protein covalently attached to the surface of microdisk lasers operating under optical pumping at room temperature in an aqueous medium. It was shown that the attached secondary antibodies cause an increase in the threshold power of lasing and also to an increase in the half-width of the resonant laser line.

scholarly journals Investigation of the effect of surface passivation on microdisk lasers based on InGaAsN/GaAs quantum well active region

2017 ◽  
Vol 917 ◽  
pp. 052002 ◽  
Author(s):  
E I Moiseev ◽  
N V Kryzhanovskaya ◽  
M V Maximov ◽  
A M Mozharov ◽  
A S Gudovskikh ◽  
...  
Keyword(s):  
Active Region ◽  
Quantum Well ◽  
Surface Passivation ◽  
Microdisk Lasers ◽  
Effect Of Surface

scholarly journals Microdisk lasers based on GaInNAsSb/GaAsN quantum well active region

2015 ◽  
Vol 643 ◽  
pp. 012040
Author(s):  
E I Moiseev ◽  
N V Kryzhanovskaya ◽  
Yu V Kudashova ◽  
M V Maximov ◽  
M M Kulagina ◽  
...  
Keyword(s):  
Active Region ◽  
Quantum Well ◽  
Microdisk Lasers

scholarly journals Temperature stability of small-signal modulation response of WGM microlasers with InGaAs/GaAs quantum well-dots in the active region

2021 ◽  
Vol 2086 (1) ◽  
pp. 012082
Author(s):  
N K Isaev ◽  
E I Moiseev ◽  
N A Fominykh ◽  
N V Kryzhanovskaya ◽  
F I Zubov ◽  
...  
Keyword(s):  
Active Region ◽  
Quantum Well ◽  
Elevated Temperatures ◽  
Diode Lasers ◽  
Temperature Stability ◽  
Small Signal ◽  
Signal Modulation ◽  
Modulation Response ◽  
Microdisk Lasers ◽  
Small Signal Modulation

Abstract In this paper, results are presented on III-V quantum well dot microring diode lasers tested at elevated temperatures. To the best of our knowledge, the first uncooled microdisk lasers with diameter of 40 μm with 3-dB bandwidth above 2 GHz at 55°C are demonstrated.

scholarly journals Output power of multilayered InGaAs/GaAs quantum well-dot microdisk lasers

2021 ◽  
Vol 2086 (1) ◽  
pp. 012081
Author(s):  
N A Fominykh ◽  
E I Moiseev ◽  
Ju A Guseva ◽  
M V Maximov ◽  
A I Lihachev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Active Region ◽  
Quantum Well ◽  
Output Power ◽  
Optical Power ◽  
Threshold Current ◽  
Sudden Drop ◽  
Output Optical Power ◽  
Number Of Layers ◽  
Microdisk Lasers

Abstract We studied the output optical power of microdisk lasers with InGaAs/GaAs quantum dots active region. An increase in the number of layers in the active region in the waveguide from 2 to 6 leads to increase in the peak output optical power due probably to increase of the gain. We also observe a corresponding increase of the threshold current due to the increase on the transparence current. The maximal optical power is achieved for structure with 6 layers at approximately 60 mA injection current. Further increase of the number of the QD layers to 10 results in increase of the threshold current and sudden drop of the output power.

Morphology of the flare-productive active region NOAA 9087

2020 ◽  
Vol 36 (3) ◽  
pp. 69-90
Author(s):  
S. N. Chornogor ◽  
◽  
N. N. Kondrashova ◽  
Keyword(s):  
Active Region ◽  
Active Region Noaa ◽  
Region Noaa

On-the-Fly Determination of Active Region Centers in Adaptive-Partitioning QM/MM

2020 ◽  
Author(s):  
Zenghui Yang
Keyword(s):  
Quantum Mechanics ◽  
Active Region ◽  
Molecular Mechanics ◽  
Active Regions ◽  
Available Energy ◽  
Adaptive Partitioning ◽  
Different Levels

Quantum mechanics/molecular mechanics (QM/MM) methods partition the system into active and environmental regions and treat them with different levels of theory, achieving accuracy and efficiency at the same time. Adaptive-partitioning (AP) QM/MM methods allow on-the-fly changes to the QM/MM partitioning of the system. Many of the available energy-based AP-QM/MM methods partition the system according to distances to pre-chosen centers of active regions. For such AP-QM/MM methods, I develop an adaptive-center (AC) method that allows on-the-fly determination of the centers of active regions according to general geometrical or potential-related criteria, extending the range of application of energy-based AP-QM/MM methods to systems where active regions may occur or vanish during the simulation.

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