Z-scan measurement for the nonlinear absorption of Bi2.55La0.45TiNbO9 thin films

Hengzhi Chen; Bin Yang; Mingfu Zhang; Feiyan Wang; Kokwai Cheah; Wenwu Cao

doi:10.1016/j.matlet.2009.12.010

Z-scan measurement for the nonlinear absorption of Bi_2.55La_0.45TiNbO₉ thin films

Hengzhi Chen, Bin Yang, Mingfu Zhang, Feiyan Wang, Kokwai Cheah, Wenwu Cao

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Bi_2.55La_0.45TiNbO₉ (BLTN-0.45) thin films with layered aurivillius structure were fabricated on fused silica substrates by pulsed laser deposition technique. Their structure, fundamental optical constants, and nonlinear absorption characteristics have been studied. The film exhibits a high transmittance (> 60%) in visible-infrared region. The optical band gap energy was found to be 3.44 eV. The optical constant and thickness of the films were characterized using spectroscopic ellipsometric (SE) method. The nonlinear optical absorption properties of the films were investigated by the single-beam Z-scan method at a wavelength of 800 nm laser with a duration of 80 fs. We obtained the nonlinear absorption coefficient β = 4.64 × 10^{- 8} m/W. The results show that the BLTN-0.45 thin film is a promising material for applications in absorbing-type optical device.

Original language	English (US)
Pages (from-to)	589-591
Number of pages	3
Journal	Materials Letters
Volume	64
Issue number	5
DOIs	https://doi.org/10.1016/j.matlet.2009.12.010
State	Published - Mar 15 2010

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2009.12.010

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title = "Z-scan measurement for the nonlinear absorption of Bi2.55La0.45TiNbO9 thin films",

abstract = "Bi2.55La0.45TiNbO9 (BLTN-0.45) thin films with layered aurivillius structure were fabricated on fused silica substrates by pulsed laser deposition technique. Their structure, fundamental optical constants, and nonlinear absorption characteristics have been studied. The film exhibits a high transmittance (> 60%) in visible-infrared region. The optical band gap energy was found to be 3.44 eV. The optical constant and thickness of the films were characterized using spectroscopic ellipsometric (SE) method. The nonlinear optical absorption properties of the films were investigated by the single-beam Z-scan method at a wavelength of 800 nm laser with a duration of 80 fs. We obtained the nonlinear absorption coefficient β = 4.64 × 10- 8 m/W. The results show that the BLTN-0.45 thin film is a promising material for applications in absorbing-type optical device.",

author = "Hengzhi Chen and Bin Yang and Mingfu Zhang and Feiyan Wang and Kokwai Cheah and Wenwu Cao",

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doi = "10.1016/j.matlet.2009.12.010",

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TY - JOUR

T1 - Z-scan measurement for the nonlinear absorption of Bi2.55La0.45TiNbO9 thin films

AU - Chen, Hengzhi

AU - Yang, Bin

AU - Zhang, Mingfu

AU - Wang, Feiyan

AU - Cheah, Kokwai

AU - Cao, Wenwu

PY - 2010/3/15

Y1 - 2010/3/15

N2 - Bi2.55La0.45TiNbO9 (BLTN-0.45) thin films with layered aurivillius structure were fabricated on fused silica substrates by pulsed laser deposition technique. Their structure, fundamental optical constants, and nonlinear absorption characteristics have been studied. The film exhibits a high transmittance (> 60%) in visible-infrared region. The optical band gap energy was found to be 3.44 eV. The optical constant and thickness of the films were characterized using spectroscopic ellipsometric (SE) method. The nonlinear optical absorption properties of the films were investigated by the single-beam Z-scan method at a wavelength of 800 nm laser with a duration of 80 fs. We obtained the nonlinear absorption coefficient β = 4.64 × 10- 8 m/W. The results show that the BLTN-0.45 thin film is a promising material for applications in absorbing-type optical device.

AB - Bi2.55La0.45TiNbO9 (BLTN-0.45) thin films with layered aurivillius structure were fabricated on fused silica substrates by pulsed laser deposition technique. Their structure, fundamental optical constants, and nonlinear absorption characteristics have been studied. The film exhibits a high transmittance (> 60%) in visible-infrared region. The optical band gap energy was found to be 3.44 eV. The optical constant and thickness of the films were characterized using spectroscopic ellipsometric (SE) method. The nonlinear optical absorption properties of the films were investigated by the single-beam Z-scan method at a wavelength of 800 nm laser with a duration of 80 fs. We obtained the nonlinear absorption coefficient β = 4.64 × 10- 8 m/W. The results show that the BLTN-0.45 thin film is a promising material for applications in absorbing-type optical device.

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SP - 589

EP - 591

JO - Materials Letters

JF - Materials Letters

IS - 5

ER -

Z-scan measurement for the nonlinear absorption of Bi_2.55La_0.45TiNbO₉ thin films

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