Ultrafast exciton recombination in PbS quantum dots

V. G. Savitski; N. N. Posnov; A. M. Malyarevich; K. V. Yumashev; A. A. Lipovskii

doi:10.1117/12.498356

Ultrafast exciton recombination in PbS quantum dots

V. G. Savitski, N. N. Posnov, A. M. Malyarevich, K. V. Yumashev, A. A. Lipovskii

Institute Of Photonics

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Bleaching relaxation in PbS-quantum-dots-doped phosphate glasses in dependence on the dot size is presented. The fast bleaching decay component is increased from 14 to 93 ps as the dot size increased from 4.7 to 5.8 nm. The glasses are employed as saturable absorbers for mode-locking and Q-switching of 1.3 μm neodymium lasers. Q-switched pulses of 120 ns (0.1 μJ) in duration (energy) and the average output power of 3 mW from diode-pumped Nd ³⁺:KGW laser and ultrashort pulses of maximum 250 μJ in energy and 150 ps in duration from a Nd³⁺:YAP laser were obtained.

Original language	English
Pages (from-to)	372-375
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5036
DOIs	https://doi.org/10.1117/12.498356
Publication status	Published - 1 Dec 2002
Event	Photonics, Devices, and Systems II - Prague, Czech Republic Duration: 26 May 2002 → 29 May 2002

Keywords

mode-locking
PbS
Q-switching
quantum dots
bleaching
excitons
laser mode locking
laser pulses
Neodymium lasers
Phosphates
Q switched lasers
semiconducting lead compounds
semiconductor doping
semiconductor quantum dots

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@article{b18ffede248b4ac78487d2bacf54aeb2,

title = "Ultrafast exciton recombination in PbS quantum dots",

abstract = "Bleaching relaxation in PbS-quantum-dots-doped phosphate glasses in dependence on the dot size is presented. The fast bleaching decay component is increased from 14 to 93 ps as the dot size increased from 4.7 to 5.8 nm. The glasses are employed as saturable absorbers for mode-locking and Q-switching of 1.3 μm neodymium lasers. Q-switched pulses of 120 ns (0.1 μJ) in duration (energy) and the average output power of 3 mW from diode-pumped Nd 3+:KGW laser and ultrashort pulses of maximum 250 μJ in energy and 150 ps in duration from a Nd3+:YAP laser were obtained.",

keywords = "mode-locking, PbS, Q-switching, quantum dots, bleaching, excitons, laser mode locking, laser pulses, Neodymium lasers, Phosphates, Q switched lasers, semiconducting lead compounds, semiconductor doping, semiconductor quantum dots",

author = "Savitski, {V. G.} and Posnov, {N. N.} and Malyarevich, {A. M.} and Yumashev, {K. V.} and Lipovskii, {A. A.}",

year = "2002",

month = dec,

day = "1",

doi = "10.1117/12.498356",

language = "English",

volume = "5036",

pages = "372--375",

journal = "Proceedings of SPIE",

issn = "0277-786X",

note = "Photonics, Devices, and Systems II ; Conference date: 26-05-2002 Through 29-05-2002",

}

TY - JOUR

T1 - Ultrafast exciton recombination in PbS quantum dots

AU - Savitski, V. G.

AU - Posnov, N. N.

AU - Malyarevich, A. M.

AU - Yumashev, K. V.

AU - Lipovskii, A. A.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Bleaching relaxation in PbS-quantum-dots-doped phosphate glasses in dependence on the dot size is presented. The fast bleaching decay component is increased from 14 to 93 ps as the dot size increased from 4.7 to 5.8 nm. The glasses are employed as saturable absorbers for mode-locking and Q-switching of 1.3 μm neodymium lasers. Q-switched pulses of 120 ns (0.1 μJ) in duration (energy) and the average output power of 3 mW from diode-pumped Nd 3+:KGW laser and ultrashort pulses of maximum 250 μJ in energy and 150 ps in duration from a Nd3+:YAP laser were obtained.

AB - Bleaching relaxation in PbS-quantum-dots-doped phosphate glasses in dependence on the dot size is presented. The fast bleaching decay component is increased from 14 to 93 ps as the dot size increased from 4.7 to 5.8 nm. The glasses are employed as saturable absorbers for mode-locking and Q-switching of 1.3 μm neodymium lasers. Q-switched pulses of 120 ns (0.1 μJ) in duration (energy) and the average output power of 3 mW from diode-pumped Nd 3+:KGW laser and ultrashort pulses of maximum 250 μJ in energy and 150 ps in duration from a Nd3+:YAP laser were obtained.

KW - mode-locking

KW - PbS

KW - Q-switching

KW - quantum dots

KW - bleaching

KW - excitons

KW - laser mode locking

KW - laser pulses

KW - Neodymium lasers

KW - Phosphates

KW - Q switched lasers

KW - semiconducting lead compounds

KW - semiconductor doping

KW - semiconductor quantum dots

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U2 - 10.1117/12.498356

DO - 10.1117/12.498356

M3 - Conference article

AN - SCOPUS:0242469295

VL - 5036

SP - 372

EP - 375

JO - Proceedings of SPIE

JF - Proceedings of SPIE

SN - 0277-786X

T2 - Photonics, Devices, and Systems II

Y2 - 26 May 2002 through 29 May 2002

ER -