Graduate Seminar: Shawana Tabassum

Date/Time
Date(s) - 15 Oct 2018
1:10 PM - 2:00 PM

Location
3043 ECpE Building Addition

Speaker: Shawana Tabassum, ECpE Graduate Student

Adviser: Ratnesh Kumar and Liang Dong

Title: Nano-structure Based Optical Sensors Fabrication and Demonstration to Gas Sensing Applications

Abstract: We present three different nano-resonant structures (nanoposts, nanoholes etc.) fabricated on either bulk substrate or micron size tip of optical fiber for gas detection in visible or mid-infrared (IR) region of electromagnetic spectrum. The three nanostructure-based gas sensing techniques are based on the detection of surface plasmon resonance (SPR) wavelength shifts, guided mode resonance (GMR) wavelength shifts, and Rayleigh anomaly (RA) mode intensity variations. The SPR and GMR based sensors operate in the visible region of light spectrum. Later, we also integrate a heater with the GMR-based fiber-tip sensor to realize a reusable gas sensor having tunable sensor recovery time. The RA-based sensor is realized by solvent-casting of chalcogenide (ChG) glass to work as mid-IR optical resonator.

Download event reminder

back to Seminars list

Events Calendar

<< Dec 2018 >>
SMTWTFS
25 26 27 28 29 30 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31 1 2 3 4 5

Contact Information

Interested in giving a seminar? Contact Professor Namrata Vaswani.

Announcements and publicity by Kristin Clague, and scheduling by the department secretary.