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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 9 — May. 1, 2010
  • pp: 1476–1478

Diffractive optic sensor for remote-point detection of ammonia

M. Vasileiadis, L. Athanasekos, A. Meristoudi, D. Alexandropoulos, G. Mousdis, V. Karoutsos, A. Botsialas, and N. A. Vainos  »View Author Affiliations

Optics Letters, Vol. 35, Issue 9, pp. 1476-1478 (2010)

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Remote-point photonic sensors are fabricated and evaluated. They are based on nanocomposite thin films comprising Ni Cl 2 nanocrystals embedded in sol-gel silica matrix and are patterned using direct UV laser microetching techniques to form surface relief structures, which exhibit environment sensitive optical diffraction effects. A strong response to ammonia is detected via the alteration of diffraction efficiency of its orders upon exposure to the analyte. Detection of ammonia in the 2 ppm level with a typical response time of about 30 s in the ambient, 50% RH 20 ° C , room environment is demonstrated.

© 2010 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(160.6060) Materials : Solgel
(220.4000) Optical design and fabrication : Microstructure fabrication
(160.4236) Materials : Nanomaterials
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(280.4991) Remote sensing and sensors : Passive remote sensing

ToC Category:
Remote Sensing and Sensors

Original Manuscript: November 23, 2009
Revised Manuscript: March 17, 2010
Manuscript Accepted: March 29, 2010
Published: April 30, 2010

M. Vasileiadis, L. Athanasekos, A. Meristoudi, D. Alexandropoulos, G. Mousdis, V. Karoutsos, A. Botsialas, and N. A. Vainos, "Diffractive optic sensor for remote-point detection of ammonia," Opt. Lett. 35, 1476-1478 (2010)

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