Department of Mechanical and Aerospace Engineering

Overview

Remote sensing of the ocean and atmosphere has a wide application such as detection of hidden objects in ocean water, detection of lightning channels in cloud media, etc. For example, detection of hidden objects in ocean water is performed using a short-pulse laser source and a streak tube by scanning over the ocean surface. A detailed parametric study of variation of water optical properties, size and nature of objects, type of ocean water, and ocean surface conditions is needed to characterize the detection scheme.

Kunal Mitra, Ph.D,
Tel: (321)674-7131, email: kmitra@fit.edu

Research Interests

Short-pulse lasers and x-rays for biomedical imaging and therapy; thermal radiation transport modeling and experiments through biological tissues and other participating media, Nanobiosensors for cellular interrogation; microscale heat transfer.

Current Research Projects

Detection of Debonding in Thermal Protection Tile System Using Pulsed Laser Sources (Sponsor: Florida Space Grant Consortium)

The thermal protection system (TPS) of each Space Shuttle Orbiter Vehicle possesses approximately 24,300 Reusable Surface insulation (RSI) tiles, some of which lose bond integrity during repeated flights. The novel use of a short-pulse laser source in conjunction with an ultrafast detector and a streak camera will provide an alternative new methodology to test the tiles non-destructively without posing any threat to the bond integrity.

Underwater Imaging for Land Mine Detection in Shallow Water Using Pulsed Lasers

(Past sponsor: Northrop Grumman)

The objective of this research is to utilize a small laboratory wave tank in which small gravity waves are generatd to simulate conditions for underwater imaging in shallow coastal water for detection of hidden targets such as landmines. In order to achieve this goal, a laser, streak camera, and high-speed CCD camera based imaging system is used.

Selected Publications

"Numerical and Experimental Study of Non-Destructive Detection of Thermal Tile System Debonding Using Short-Pulse Laser," AIAA paper 2004-2578, AIAA Thermophysics Conference, Portland, OR, Jun. 28 - Jul. 1, 2004.with A. Trivedi and C.S. Subramanian

"Developing and Testing a Pushbroom Camera Motion Control Ssytem: Using a LIDAR-Based Streak Camera for Studying the Influence of Water Waves on Underwater Light Structure Detection," SPIE Remote Sensing Eupope, Barcelona, Spain, Sept. 8-12, 2003. with C. Bostater, T. Ghir, S. Norman, L. Huddleston, L. Bassetti, C. Das, & A. Trivedi

Chelakara S. Subramanian, Ph.D, P.Eng(U.K.)
Tel: (321)674-7614, email: subraman@fit.edu

Research Interests

Detection of debonding in thermal protection system of shuttle orbiter; detection of lightning through clouds using short-pulse lasers.

Current Research Projects

Detection of Debonding in Thermal Protection Tile System Using Pulsed Laser Sources (Past sponsor: Florida Space Grant Consortium)

The thermal protection system (TPS) of each Space Shuttle Orbiter Vehicle possesses approximately 24,300 Reusable Surface insulation (RSI) tiles, some of which lose bond integrity during repeated flights. The novel use of a short pulse laser source in conjunction with an ultrafast detector and a streak camera will provide an alternative new methodology to test the tiles non-destructively without posing any threat to the bond integrity.

Detection of Lightning Through Clouds (Sponsored by FSREGP)

Selected Publications

"Numerical and Experimental Study of Non-Destructive Detection of Thermal Tile System Debonding Using Short-Pulse Laser," AIAA paper 2004-2578, AIAA Thermophysics Conference, Portland, OR, Jun. 28 - Jul. 1, 2004. with A. Trivedi and K. Mitra

"Temperature Distribution in Different Materials Due to Short-Pulse Laser Irradiation", Journal of Heat Transfer Engineering, May 2005.

Explore the Laser, Optics, and Instrumentation Lab