Optical losses in sol-gel derived lead lanthanum titanate waveguides

G. Teowee, S. Motakef, T. J. Bukowski, J. M. Boulton, Dunbar P Birnie, D. R. Uhlmann

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A series of solgel derived lead lanthanum titanate films were prepared on Corning 7059 glass substrates. Waveguiding properties of these films were studied as a function of La content and film thickness. 0.5M precursor solutions based on lead acetate, La nitrate and Ti Zr alkoxides were refluxed for 1 hour and later spincoated at various speeds on the substrates under clean room condition. Films were fired to 400C for 1 hr to burn off the organics and to consolidate the coatings. They were then fired at temperatures ranging from 500C to 600C. XRD was used to determine the phase assembly present in these films; the presence of La seemed to aid in the formation of the perovskite phase. Transmission spectra were gathered using a UV-Vis spectrometer; and the spectra were then used to calculate the refractive indices based on the envelope method. The waveguiding properties and optical attenuation were studied via prism coupling using a rutile prism. The optical losses in these films decrease with La content and also in thicker single-coated films. On the other hand, thicker films achieved by multiple coating appeared to exhibit higher losses. Crystalline PLZT 28/0/100 yielded loss of <2 dB/cm, the lowest among reported literature values for any sol-gel or sputtered PLZT films.

Original languageEnglish
Pages (from-to)323-326
Number of pages4
JournalMicroelectronic Engineering
Volume29
Issue number1-4
DOIs
Publication statusPublished - 1995

Fingerprint

Lanthanum
Optical losses
lanthanum
Sol-gels
Waveguides
Lead
gels
waveguides
Prisms
prisms
lead acetates
Ultraviolet spectrometers
clean rooms
Clean rooms
coatings
Coatings
alkoxides
Substrates
Thick films
rutile

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Hardware and Architecture

Cite this

Teowee, G., Motakef, S., Bukowski, T. J., Boulton, J. M., Birnie, D. P., & Uhlmann, D. R. (1995). Optical losses in sol-gel derived lead lanthanum titanate waveguides. Microelectronic Engineering, 29(1-4), 323-326. https://doi.org/10.1016/0167-9317(95)00170-0

Optical losses in sol-gel derived lead lanthanum titanate waveguides. / Teowee, G.; Motakef, S.; Bukowski, T. J.; Boulton, J. M.; Birnie, Dunbar P; Uhlmann, D. R.

In: Microelectronic Engineering, Vol. 29, No. 1-4, 1995, p. 323-326.

Research output: Contribution to journalArticle

Teowee, G, Motakef, S, Bukowski, TJ, Boulton, JM, Birnie, DP & Uhlmann, DR 1995, 'Optical losses in sol-gel derived lead lanthanum titanate waveguides', Microelectronic Engineering, vol. 29, no. 1-4, pp. 323-326. https://doi.org/10.1016/0167-9317(95)00170-0
Teowee, G. ; Motakef, S. ; Bukowski, T. J. ; Boulton, J. M. ; Birnie, Dunbar P ; Uhlmann, D. R. / Optical losses in sol-gel derived lead lanthanum titanate waveguides. In: Microelectronic Engineering. 1995 ; Vol. 29, No. 1-4. pp. 323-326.
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