Upconversion spectroscopy of Al2O3:Er3+

L. Agazzi; Kerstin Worhoff; Markus Pollnau; A. Kahn; M. Fechner; K. Petermann; G. Huber

Upconversion spectroscopy of Al₂O₃:Er³⁺

L. Agazzi, Kerstin Worhoff, Markus Pollnau, A. Kahn, M. Fechner, K. Petermann, G. Huber

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

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Abstract

The excitation and relaxation processes relevant for establishing optical gain in Al2O3:Er3+ on the 4I13/2 -> 4I15/2 transition at 1.5 µm are investigated. Excited-state absorption in the wavelength range from 900-1800 nm is measured in a pump-probe experiment. The 4I13/2 and 4I11/2 lifetimes are measured after direct excitation and the macroscopic parameter of the energy-transfer-upconversion (ETU) process (4I13/2, 4I13/2) -> (4I15/2, 4I9/2) is determined independently from both decay curves. By use of the Zubenko model the microscopic parameters of ETU and energy migration are derived. It is found that above the Er3+ concentration at which the transition from static to migration-accelerated ETU takes place also the 1.5-µm amplifier gain is diminished by this process.

Original language	English
Title of host publication	IV International Workshop on Photonic and Electronic Materials 2010
Subtitle of host publication	Scientific Program and Workshop Abstracts
Place of Publication	San Sebastian, Spain
Publisher	Dostonia International Physics Center
Pages	49-49
Number of pages	1
Publication status	Published - Jul 2010
Event	IV International Workshop on Photonic and Electronic Materials 2010 - San Sebastian, Spain Duration: 5 Jul 2010 → 7 Jul 2010

Workshop

Workshop	IV International Workshop on Photonic and Electronic Materials 2010
Country	Spain
City	San Sebastian
Period	5/07/10 → 7/07/10

Keywords

METIS-276042
IOMS-APD: Active Photonic Devices
EWI-18090
IR-72292

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@inproceedings{5719aeeda65b4826b1d4ff8e09fc7f37,

title = "Upconversion spectroscopy of Al2O3:Er3+",

abstract = "The excitation and relaxation processes relevant for establishing optical gain in Al2O3:Er3+ on the 4I13/2 -> 4I15/2 transition at 1.5 µm are investigated. Excited-state absorption in the wavelength range from 900-1800 nm is measured in a pump-probe experiment. The 4I13/2 and 4I11/2 lifetimes are measured after direct excitation and the macroscopic parameter of the energy-transfer-upconversion (ETU) process (4I13/2, 4I13/2) -> (4I15/2, 4I9/2) is determined independently from both decay curves. By use of the Zubenko model the microscopic parameters of ETU and energy migration are derived. It is found that above the Er3+ concentration at which the transition from static to migration-accelerated ETU takes place also the 1.5-µm amplifier gain is diminished by this process.",

keywords = "METIS-276042, IOMS-APD: Active Photonic Devices, EWI-18090, IR-72292",

author = "L. Agazzi and Kerstin Worhoff and Markus Pollnau and A. Kahn and M. Fechner and K. Petermann and G. Huber",

year = "2010",

month = jul,

language = "English",

pages = "49--49",

booktitle = "IV International Workshop on Photonic and Electronic Materials 2010",

publisher = "Dostonia International Physics Center",

note = "IV International Workshop on Photonic and Electronic Materials 2010 ; Conference date: 05-07-2010 Through 07-07-2010",

}

Agazzi, L, Worhoff, K, Pollnau, M, Kahn, A, Fechner, M, Petermann, K & Huber, G 2010, Upconversion spectroscopy of Al₂O₃:Er³⁺. in IV International Workshop on Photonic and Electronic Materials 2010: Scientific Program and Workshop Abstracts. Dostonia International Physics Center, San Sebastian, Spain, pp. 49-49, IV International Workshop on Photonic and Electronic Materials 2010, San Sebastian, Spain, 5/07/10.

Upconversion spectroscopy of Al₂O₃:Er³⁺. / Agazzi, L.; Worhoff, Kerstin; Pollnau, Markus; Kahn, A.; Fechner, M.; Petermann, K.; Huber, G.

IV International Workshop on Photonic and Electronic Materials 2010: Scientific Program and Workshop Abstracts. San Sebastian, Spain : Dostonia International Physics Center, 2010. p. 49-49.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Upconversion spectroscopy of Al2O3:Er3+

AU - Agazzi, L.

AU - Worhoff, Kerstin

AU - Pollnau, Markus

AU - Kahn, A.

AU - Fechner, M.

AU - Petermann, K.

AU - Huber, G.

PY - 2010/7

Y1 - 2010/7

N2 - The excitation and relaxation processes relevant for establishing optical gain in Al2O3:Er3+ on the 4I13/2 -> 4I15/2 transition at 1.5 µm are investigated. Excited-state absorption in the wavelength range from 900-1800 nm is measured in a pump-probe experiment. The 4I13/2 and 4I11/2 lifetimes are measured after direct excitation and the macroscopic parameter of the energy-transfer-upconversion (ETU) process (4I13/2, 4I13/2) -> (4I15/2, 4I9/2) is determined independently from both decay curves. By use of the Zubenko model the microscopic parameters of ETU and energy migration are derived. It is found that above the Er3+ concentration at which the transition from static to migration-accelerated ETU takes place also the 1.5-µm amplifier gain is diminished by this process.

AB - The excitation and relaxation processes relevant for establishing optical gain in Al2O3:Er3+ on the 4I13/2 -> 4I15/2 transition at 1.5 µm are investigated. Excited-state absorption in the wavelength range from 900-1800 nm is measured in a pump-probe experiment. The 4I13/2 and 4I11/2 lifetimes are measured after direct excitation and the macroscopic parameter of the energy-transfer-upconversion (ETU) process (4I13/2, 4I13/2) -> (4I15/2, 4I9/2) is determined independently from both decay curves. By use of the Zubenko model the microscopic parameters of ETU and energy migration are derived. It is found that above the Er3+ concentration at which the transition from static to migration-accelerated ETU takes place also the 1.5-µm amplifier gain is diminished by this process.

KW - METIS-276042

KW - IOMS-APD: Active Photonic Devices

KW - EWI-18090

KW - IR-72292

M3 - Conference contribution

SP - 49

EP - 49

BT - IV International Workshop on Photonic and Electronic Materials 2010

PB - Dostonia International Physics Center

CY - San Sebastian, Spain

T2 - IV International Workshop on Photonic and Electronic Materials 2010

Y2 - 5 July 2010 through 7 July 2010

ER -