title: Note: epitaxial ruby thin film based photonic sensor for temperature measurement.
abstract: Deposition of optical quality C-axis oriented epitaxial thin film of ruby via pulsed laser deposition technique on sapphire substrate is reported. The film is characterized by Raman spectra and photoluminescence spectra. The peak positions of R-line and the corresponding linewidth are observed to be temperature dependent. The sensitivity of R(1)-line position, υ, with the temperature, (dυ/dT), in the range of 138-368 K shows linear behavior confirming its applicability as temperature sensor.
authors: Laser and Photonics Laboratory, Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
authors: Satchi
authors: S
authors: Kumari
authors: Alika
authors: A
authors: Khare