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We investigate fundamental thermal/fluid transport in laser nanomanufacturing using both numerical methods and experimental procedures. We are particularly interested in near-field and ultra-fast heat transfer involving photon-electron-phonon interactions at extremely short time and length scales. We also investigate thermal/fluid transport in biomedical micro/nano-devices such as a DNA chip where the control of temperature and fluid flow is critical to the performance of the device. We use a high-resolution infrared camera to measure the temperature and micro-PIV for the velocity measurement.
Representative Publications:
A. J. Heltzel, A. Battula, J. R. Howell, and S. C. Chen, “Nanostructuring Borosilicate Glass with Near-field Enhanced Energy Using a Femtosecond Laser Pulse”, accepted, Journal of Heat Transfer, 2006.
S. Li, D.Y. Fozdar, M. Ali, H. Li, D.B. Shao, M.G. Olsen, J. T. McDevitt, P.R.C. Gascoyne, S.C. Chen, “A Continuous-flow Polymerase Chain Reaction Microchip with Regional Velocity Control”, Journal of Microelectromechanical Systems, Vol. 15 (1), pp. 223- 236, 2006.
A. J. Heltzel, S. Theppakuttai, J. R. Howell, and S. C. Chen, “Analytical and Experimental Investigation of Laser-Microsphere Interaction for Nanoscale Surface Modification”, Journal of Heat Transfer, Vol. 127, pp. 1231-1235, 2005.
L.H. Han and S. C. Chen, “A Wireless Bimorph Micro-actuator by Pulsed Laser Heating”, Sensors and Actuators A, Vol. 121 (1), pp. 35-43, 2005.
S. Li and S. C. Chen, “Design, Simulation, and Micro-fabrication of a Heat Conduction DNA Chip with Integrated Microheaters”, Journal of Manufacturing Processes, Vol. 6 (1), pp. 81-87, 2004.
Y. Lu, S. Theppakuttai, and S. C. Chen, “Marangoni Effect in Nanosphere-enhanced Laser Nanopatterning of Silicon”, Applied Physics Letters, Vol. 82 (23), pp. 4143-4145, 2003.
S. Li and S. C. Chen, “Polydimethylsiloxane Fluidic Interconnects for Microfluidic Systems”, IEEE Transactions on Advanced Packaging, Vol. 26 (3), pp. 242-247, 2003.
S. Li and S. C. Chen, “Analytical Analysis of a Circular PZT-actuator for Valveless Micropumps”, Sensors and Actuators A, Vol. 104 (2), pp. 151-161, 2003.
T. Schwarz-Selinger, D.G. Cahill, S. C. Chen, S. J. Moon, and C. P. Grigoropoulos, “Micron-scale Modifications of Si Surface Morphology by Pulsed-laser Texturing,” Physical Review B., Vol. 64 (15), pp. 155323-1—155323-7, 2001.
S. C. Chen, D. G. Cahill, and C. P. Grigoropoulos, “Melting and Surface Deformation in Pulsed Laser Surface Micro-modification of NiP Disks”, Journal of Heat Transfer, Vol.122 (1), pp. 107-12, 2000
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