Award Abstract #0103390
NER: Ultrafast Laser-Assisted Scanning Probe Fabrication of Nanostructues

NSF Org:	CBET Division of Chemical, Bioengineering, Environmental, and Transport Systems
Initial Amendment Date:	July 10, 2001
Latest Amendment Date:	July 5, 2002
Award Number:	0103390
Award Instrument:	Standard Grant
Program Manager:	Farley Fisher CBET Division of Chemical, Bioengineering, Environmental, and Transport Systems ENG Directorate for Engineering
Start Date:	July 15, 2001
Expires:	December 31, 2002 (Estimated)
Awarded Amount to Date:	$100000
Investigator(s):	Costas Grigoropoulos cgrigoro@me.berkeley.edu (Principal Investigator) Kyriakos Komvopoulos (Co-Principal Investigator)
Sponsor:	University of California-Berkeley Sponsored Projects Office BERKELEY, CA 94704 510/642-8109
NSF Program(s):	COMBUSTION, FIRE, & PLASMA SYS, THERMAL TRANSPORT PROCESSES
Field Application(s):	0308000 Industrial Technology
Program Reference Code(s):	MANU, 9147, 1676
Program Element Code(s):	1407, 1406

ABSTRACT

Basic exploratory research is performed on nanoscale surface engineering through means of ultra-fast, pulsed laser radiation coupled with near-field scanning probe microscopy. A new experimental apparatus consisting of a femtosecond laser source coupled with a scanning AFM/STM system is used for this purpose. Depending on the process parameters, high-definition nanomachining and nanodeposition can be achieved. The effects of the laser intensity distribution, wavelength, and polarization are examined in relation to the sample/probe tip material parameters. The integrity, durability, mechanical, chemical and electrical structural properties of the produced nanofeatures are characterized by various micro-analytical techniques. The long-term objective is the development of functional relationships between key process parameters, patterning features, and material properties of the modified surfaces that will enable nanostructure optimization.

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