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Nikolai N. Ledentsov
Researcher at Russian Academy of Sciences
Publications - 297
Citations - 10963
Nikolai N. Ledentsov is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Quantum dot & Quantum dot laser. The author has an hindex of 42, co-authored 283 publications receiving 10676 citations. Previous affiliations of Nikolai N. Ledentsov include Max Planck Society & Technical University of Berlin.
Papers
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Proceedings ArticleDOI
Semiconductor heterostructures for lasers and microwave FETs
TL;DR: In this paper, the design and manufacturing technologies of epitaxial heterostructures for microwave FETs and various semiconductor lasers are presented, and a technology of producing heterostructure in AlGaAs/InInGaA/GaAs, InAlAlA/InAlP/InP and AlGaN/GaN systems of materials of materials for microwaveFETs has been developed.
Journal ArticleDOI
Separated electrodes for the enhancement of high-speed data transmission in vertical-cavity surface-emitting laser arrays.
Yaung-Cheng Zhao,Zohauddin Ahmad,Wu-Min Long,Zuhaib Ashfaq Khan,Nikolai N. Ledentsov,M. Bou Sanayeh,Te-Lieh Pan,Cheng-Chun Chen,Chia Jui Chang,Tien-Chang Lu,N. N. Ledentsov,Jin-Wei Shi +11 more
TL;DR: In this paper , a 2×2 coupled VCSEL array with Zn-diffusion apertures inside is demonstrated to produce an effective improvement in the high-speed data transmission performance.
Proceedings ArticleDOI
Small-signal modulation and 10 Gb/s data transmission by microdisk lasers based on InGaAs/GaAs quantum well-dots
N. V. Kryzhanovskaya,Eduard Moiseev,F. I. Zubov,M. V. Maximov,Sergey A. Blokhin,Nikolay A. Kalyuzhnyy,Sergey A. Mintairov,M. M. Kulagina,Nikolai N. Ledentsov,Alexey E. Zhukov +9 more
TL;DR: In this article, the authors show that using dense arrays of InGaAs quantum well-dots enables uncooled high-frequency applications with a GHz-range bandwidth, and demonstrate the potential to achieve miniature high-speed on-chip light sources for optical communication applications using lasers with only a few micrometers.
Proceedings ArticleDOI
Measurement of resonant-mode blueshifts in quantum-dot vertical-cavity surface-emitting lasers
James A. Lott,Michael J. Noble,John P. Loehr,Nikolai N. Ledentsov,Victor M. Ustinov,Dieter Bimberg +5 more
TL;DR: In this paper, the modal properties of vertical cavity surface emitting lasers with vertically coupled quantum dot active regions were investigated, and it was shown that the resonant cavity modes blueshift as the radius of the oxide aperture decreases.
Proceedings ArticleDOI
Vertical cavity surface emitting lasers based on vertically coupled quantum dots
Nikolai N. Ledentsov,V. M. Ustinov,James A. Lott,Anton Yu. Egorov,A. E. Zhukov,Mikhail V. Maximov,P. S. Kop’ev,Zh. I. Alferov,Dieter Bimberg +8 more
TL;DR: In this article, the authors proposed vertically coupled quantum dots (VCQDs) for VCSELs, where the ground state transition is split into a narrow miniband composed of N sub-levels.