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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 15 — Aug. 1, 2007
  • pp: 2118–2120

In situ sensitive optical monitoring with proper error compensation

Cheng-Chung Lee and Kai Wu  »View Author Affiliations


Optics Letters, Vol. 32, Issue 15, pp. 2118-2120 (2007)
http://dx.doi.org/10.1364/OL.32.002118


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Abstract

We introduce a way to estimate the fluctuation of the refractive index during thin film deposition, through an optical monitor. The thicknesses and error-compensated thickness for each layer are analyzed. A novel monitoring method is thereby derived. The revised refractive index and the choice of highly sensitive monitoring wavelengths help us predict the termination points more accurately. The performance of a narrow-bandpass filter monitored by this method is demonstrated.

© 2007 Optical Society of America

OCIS Codes
(310.1620) Thin films : Interference coatings
(310.1860) Thin films : Deposition and fabrication

ToC Category:
Thin Films

History
Original Manuscript: May 29, 2007
Revised Manuscript: June 15, 2007
Manuscript Accepted: June 18, 2007
Published: July 20, 2007

Citation
Cheng-Chung Lee and Kai Wu, "In situ sensitive optical monitoring with proper error compensation," Opt. Lett. 32, 2118-2120 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-15-2118


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References

  1. B. Vidal, A. Fornier, and E. Pelletier, Appl. Opt. 18, 3851 (1979). [PubMed]
  2. H. A. Macleod, Appl. Opt. 20, 82 (1981). [CrossRef] [PubMed]
  3. C. J. van der Laan, Appl. Opt. 25, 753 (1986). [CrossRef] [PubMed]
  4. H. A. Macleod, Opt. Acta 19, 1 (1972). [CrossRef]
  5. C. C. Lee, K. Wu, C. C. Kuo, and S. H. Chen, Opt. Express 13, 4854 (2004). [CrossRef]
  6. H. A. Macleod, Thin-Film Optical Filters, 3rd ed. (Institute of Physics, 2001). [CrossRef]
  7. C. C. Lee, Thin Film Optics and Coating Technology, 5th ed. (Yi Hsien, 2006).

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