Ultrafast exciton recombination in PbS quantum dots

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

Research output: Contribution to journalConference article

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.

Fingerprint

Exciton
bleaching
Bleaching
Quantum Dots
Recombination
Excitons
Semiconductor quantum dots
Laser pulses
quantum dots
excitons
Neodymium lasers
Laser
Q switching
neodymium lasers
Glass
Saturable absorbers
Laser mode locking
glass
pulses
Ultrashort pulses

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

Cite this

Savitski, V. G. ; Posnov, N. N. ; Malyarevich, A. M. ; Yumashev, K. V. ; Lipovskii, A. A. / Ultrafast exciton recombination in PbS quantum dots. In: Proceedings of SPIE - The International Society for Optical Engineering. 2002 ; Vol. 5036. pp. 372-375.
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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 = "12",
day = "1",
doi = "10.1117/12.498356",
language = "English",
volume = "5036",
pages = "372--375",
journal = "Proceedings of SPIE",
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}

Ultrafast exciton recombination in PbS quantum dots. / Savitski, V. G.; Posnov, N. N.; Malyarevich, A. M.; Yumashev, K. V.; Lipovskii, A. A.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5036, 01.12.2002, p. 372-375.

Research output: Contribution to journalConference article

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

VL - 5036

SP - 372

EP - 375

JO - Proceedings of SPIE

T2 - Proceedings of SPIE

JF - Proceedings of SPIE

SN - 0277-786X

ER -