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Lab-on-Fiber Biophotonic Sensors
The emergence of photonic sensors in distinguished fields of physical, biological, and chemical sensing has been attracting intensive research interest in recent decades. Due to their high sensitivity, immunity to electromagnetic interference, low loss, and simplicity, sensors utilizing optical components have been proven to be reliable for structural monitoring, disease detection and material identification. Among the preferred alternatives is a non-uniform cylindrical waveguide known as microfiber.

The fabrication of a microfiber is based on a heat and pull mechanism that is applied simultaneously on a standard optical fiber to create a tapered segment. As light travels along this region, a portion will be excited to form evanescent waves that can be manipulated for the benefit of optical sensing. The interaction of this wave and its surrounding material is very unique and measurable in terms of either light absorption or wavelength shift. Moreover, with the addition of bio-receptor layer deposited onto the microfiber surface, the specificity of the sensor towards a precise target of interest can be greatly enhanced. With such advantages, this “Lab-on-fiber” microfiber-based sensor has displayed promising performance in biosensing applications such as Dengue virus and Leptospira bacteria.

Subject Matter Level: Introductory - Assumes little previous knowledge of the topic

What You Will Learn:
• Basic knowledge about lab-on-fiber technology
• Applications of this technology

Who Should Attend:
• Research students
• Early stage researchers

Jun 8, 2022 08:00 AM in Eastern Time (US and Canada)

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Speakers

Mohd Adzir Mahdi
@Universiti Putra Malaysia
Mohd Adzir Mahdi received the Bachelor degree with first class honors in Electrical, Electronics and Systems Engineering from the Universiti Kebangsaan Malaysia, Selangor, Malaysia in 1996. Later, he received the Master and Ph.D. degrees with distinctions in Optical Fiber Communications from the Universiti Malaya, Kuala Lumpur, Malaysia in 1999 and 2002, respectively. In January 2003, he joined the Faculty of Engineering, Universiti Putra Malaysia, Selangor, Malaysia where he was an Associate Professor and is now a full Professor. Prior to the current appointment, Adzir was an optical design engineer at IOA Corporation, Sunnyvale, USA and a research officer at Research and Development Division, Telekom Malaysia Berhad. Since 1996, he has been involved in photonics research specializing in optical amplifiers and lasers. He has authored/co-authored over 470 scientific papers in journals. His research interest includes optical fiber lasers, optical sensors and nonlinear optics.