Excited-state dynamics in the low-phonon materials Er3+:BaY2F8 and Cs3Er2Br9

M. Pollnau; W. Lüthy; H.P. Weber; K Krämer; H.U. Güdel; R.A. McFarlane

Excited-state dynamics in the low-phonon materials Er³⁺:BaY₂F₈ and Cs₃Er₂Br₉

M. Pollnau, W. Lüthy, H.P. Weber, K Krämer, H.U. Güdel, R.A. McFarlane

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Abstract

By measuring ground-state absorption (GSA), fluorescence, and excited-state absorption (ESA) at the wavelength region around 550nm the population dynamics in Er3+:BaY2F8 and Cs3Er2Br9 are investigated. The excitation dynamics of Er3+:BaY2F8 are comparable with those in other fluoride or oxide materials. In Cs3Er2Br9 the smaller Stark splitting of the levels shifts the wavelengths of the green emission and parasitic ESA off resonance. It enhances, however, ground-state reabsorption. Upconversion leads to sigruficant green fluorescence from the 2H9/2 level. Multiphonon transitions do not contribute to the population dynamics in Cs3Er2Br9.

Original language	English
Pages	493-497
Number of pages	5
Publication status	Published - Jan 1996
Event	Advanced Solid State Lasers, ASSL 1996 - San Francisco, United States Duration: 31 Jan 1996 → 2 Feb 1996

Conference

Conference	Advanced Solid State Lasers, ASSL 1996
Abbreviated title	ASSL
Country	United States
City	San Francisco
Period	31/01/96 → 2/02/96

Keywords

IOMS-APD: Active Photonic Devices

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Cite this

@conference{e98fb42f61004fcaad35294445c343ca,

title = "Excited-state dynamics in the low-phonon materials Er3+:BaY2F8 and Cs3Er2Br9",

abstract = "By measuring ground-state absorption (GSA), fluorescence, and excited-state absorption (ESA) at the wavelength region around 550nm the population dynamics in Er3+:BaY2F8 and Cs3Er2Br9 are investigated. The excitation dynamics of Er3+:BaY2F8 are comparable with those in other fluoride or oxide materials. In Cs3Er2Br9 the smaller Stark splitting of the levels shifts the wavelengths of the green emission and parasitic ESA off resonance. It enhances, however, ground-state reabsorption. Upconversion leads to sigruficant green fluorescence from the 2H9/2 level. Multiphonon transitions do not contribute to the population dynamics in Cs3Er2Br9.",

keywords = "IOMS-APD: Active Photonic Devices",

author = "M. Pollnau and W. L{\"u}thy and H.P. Weber and K Kr{\"a}mer and H.U. G{\"u}del and R.A. McFarlane",

year = "1996",

month = jan,

language = "English",

pages = "493--497",

note = "Advanced Solid State Lasers, ASSL 1996, ASSL ; Conference date: 31-01-1996 Through 02-02-1996",

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TY - CONF

T1 - Excited-state dynamics in the low-phonon materials Er3+:BaY2F8 and Cs3Er2Br9

AU - Pollnau, M.

AU - Lüthy, W.

AU - Weber, H.P.

AU - Krämer, K

AU - Güdel, H.U.

AU - McFarlane, R.A.

PY - 1996/1

Y1 - 1996/1

N2 - By measuring ground-state absorption (GSA), fluorescence, and excited-state absorption (ESA) at the wavelength region around 550nm the population dynamics in Er3+:BaY2F8 and Cs3Er2Br9 are investigated. The excitation dynamics of Er3+:BaY2F8 are comparable with those in other fluoride or oxide materials. In Cs3Er2Br9 the smaller Stark splitting of the levels shifts the wavelengths of the green emission and parasitic ESA off resonance. It enhances, however, ground-state reabsorption. Upconversion leads to sigruficant green fluorescence from the 2H9/2 level. Multiphonon transitions do not contribute to the population dynamics in Cs3Er2Br9.

AB - By measuring ground-state absorption (GSA), fluorescence, and excited-state absorption (ESA) at the wavelength region around 550nm the population dynamics in Er3+:BaY2F8 and Cs3Er2Br9 are investigated. The excitation dynamics of Er3+:BaY2F8 are comparable with those in other fluoride or oxide materials. In Cs3Er2Br9 the smaller Stark splitting of the levels shifts the wavelengths of the green emission and parasitic ESA off resonance. It enhances, however, ground-state reabsorption. Upconversion leads to sigruficant green fluorescence from the 2H9/2 level. Multiphonon transitions do not contribute to the population dynamics in Cs3Er2Br9.

KW - IOMS-APD: Active Photonic Devices

M3 - Paper

SP - 493

EP - 497

T2 - Advanced Solid State Lasers, ASSL 1996

Y2 - 31 January 1996 through 2 February 1996

ER -