Deposition of potassium lithium niobate films by sol-gel method

H. X. Zhang; Y. Zhou; C. H. Kam; X. Q. Han; S. D. Cheng; B. S. Ooi; Y. L. Lam; Y. C. Chan

Deposition of potassium lithium niobate films by sol-gel method

H. X. Zhang^*, Y. Zhou, C. H. Kam, X. Q. Han, S. D. Cheng, B. S. Ooi, Y. L. Lam, Y. C. Chan

^*Corresponding author for this work

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

2 Scopus citations

Abstract

Potassium lithium niobate (KLN) films have been prepared by sol-gel method using metal ethoxides as starting materials. The films were deposited by spin coating and were annealed in air in a conventional oven as well as in a rapid thermal processor (RTP). X-ray diffraction and Raman scattering measurements have shown that polycrystalline KLN films with tetragonal tungsten-bronze-type structure could be obtained on both SiO₂ buffered Si and fused quartz substrates. Surface morphology studies indicated that RTP annealing could avoid film cracking and enable nanostructured low-surface roughness KLN films to be formed. Optical waveguiding experiments showed that the films have refractive indices close to those their single crystal and could support several modes. The films deposited on fused quartz were highly transparent in the visible-near infrared spectral range and the absorption edges of the films, as determined from the absorption data, were found to shift towards the violet spectral side.

Original language	English (US)
Pages (from-to)	425-432
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3896
State	Published - 1999
Externally published	Yes
Event	Proceedings of the 1999 Design, Fabrication, and Characterization of Photonic Devices - Singapore, Singapore Duration: Nov 30 1999 → Dec 3 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Applied Mathematics
Electrical and Electronic Engineering
Computer Science Applications

Cite this

@article{2ad00e19a0ee4823a090daf058b514e7,

title = "Deposition of potassium lithium niobate films by sol-gel method",

abstract = "Potassium lithium niobate (KLN) films have been prepared by sol-gel method using metal ethoxides as starting materials. The films were deposited by spin coating and were annealed in air in a conventional oven as well as in a rapid thermal processor (RTP). X-ray diffraction and Raman scattering measurements have shown that polycrystalline KLN films with tetragonal tungsten-bronze-type structure could be obtained on both SiO2 buffered Si and fused quartz substrates. Surface morphology studies indicated that RTP annealing could avoid film cracking and enable nanostructured low-surface roughness KLN films to be formed. Optical waveguiding experiments showed that the films have refractive indices close to those their single crystal and could support several modes. The films deposited on fused quartz were highly transparent in the visible-near infrared spectral range and the absorption edges of the films, as determined from the absorption data, were found to shift towards the violet spectral side.",

author = "Zhang, {H. X.} and Y. Zhou and Kam, {C. H.} and Han, {X. Q.} and Cheng, {S. D.} and Ooi, {B. S.} and Lam, {Y. L.} and Chan, {Y. C.}",

year = "1999",

language = "English (US)",

volume = "3896",

pages = "425--432",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Proceedings of the 1999 Design, Fabrication, and Characterization of Photonic Devices ; Conference date: 30-11-1999 Through 03-12-1999",

}

TY - JOUR

T1 - Deposition of potassium lithium niobate films by sol-gel method

AU - Zhang, H. X.

AU - Zhou, Y.

AU - Kam, C. H.

AU - Han, X. Q.

AU - Cheng, S. D.

AU - Ooi, B. S.

AU - Lam, Y. L.

AU - Chan, Y. C.

PY - 1999

Y1 - 1999

N2 - Potassium lithium niobate (KLN) films have been prepared by sol-gel method using metal ethoxides as starting materials. The films were deposited by spin coating and were annealed in air in a conventional oven as well as in a rapid thermal processor (RTP). X-ray diffraction and Raman scattering measurements have shown that polycrystalline KLN films with tetragonal tungsten-bronze-type structure could be obtained on both SiO2 buffered Si and fused quartz substrates. Surface morphology studies indicated that RTP annealing could avoid film cracking and enable nanostructured low-surface roughness KLN films to be formed. Optical waveguiding experiments showed that the films have refractive indices close to those their single crystal and could support several modes. The films deposited on fused quartz were highly transparent in the visible-near infrared spectral range and the absorption edges of the films, as determined from the absorption data, were found to shift towards the violet spectral side.

AB - Potassium lithium niobate (KLN) films have been prepared by sol-gel method using metal ethoxides as starting materials. The films were deposited by spin coating and were annealed in air in a conventional oven as well as in a rapid thermal processor (RTP). X-ray diffraction and Raman scattering measurements have shown that polycrystalline KLN films with tetragonal tungsten-bronze-type structure could be obtained on both SiO2 buffered Si and fused quartz substrates. Surface morphology studies indicated that RTP annealing could avoid film cracking and enable nanostructured low-surface roughness KLN films to be formed. Optical waveguiding experiments showed that the films have refractive indices close to those their single crystal and could support several modes. The films deposited on fused quartz were highly transparent in the visible-near infrared spectral range and the absorption edges of the films, as determined from the absorption data, were found to shift towards the violet spectral side.

UR - http://www.scopus.com/inward/record.url?scp=0033355392&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0033355392

SN - 0277-786X

VL - 3896

SP - 425

EP - 432

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Proceedings of the 1999 Design, Fabrication, and Characterization of Photonic Devices

Y2 - 30 November 1999 through 3 December 1999

ER -

Deposition of potassium lithium niobate films by sol-gel method

Abstract

ASJC Scopus subject areas

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