Optical fiber based Extrinsic Fabry-Perot Interferometric (EFPI) sensor significantly emerged as an advanced optical sensor for the health monitoring of civil, mechanical and aeronautical structures. This sensor responds its well capability also towards the measurement of acoustic/shock wave pressure. This paper presents an approach for high blast (acoustic/shock wave) pressure measurement usin...

Chemical sensors play an important role in our understanding of chemical and biological systems, providing sensitive rapid detection a variety substrates. Array-based sensing approaches a...

Recently, Porous Silicon (PS) is emerged as novel and unique material as a stable nano scale optical sensor device. In this work, one dimensional (1D) Photonic Bandgap (PBG) structures such as single layer (SL), Distributed Bragg Reflector (DBR) and Microcavity (MC) using PS material are suggested as optical sensor applications. Design and simulations are relying on the Bruggeman’s Effective Me...

This paper is a review of the various methods. in use, or under development, to calibrate space-multispectral imaging systems in the solar-reflective range. We introduce the subject by distinguishing between absolute and relative calibration, briefly discussing the use of scene and sensor models, and describing five calibration desiderata. We then briefly describe the different types of existin...

Introduction: In this Letter an optical fibre sensor capable of making fully distributed measurements of a wide range of solvents is identified. Microbending principles have been used to develop the sensor such that it responds on contact with liquid solvents, typically within 30 seconds of exposure. The sensor incorporates a swelling polymer and optical fibre components that are readily availa...