Laser and Particle Beams



Nanoparticles and nanotubes induced by femtosecond lasers


S.  ELIEZER  a1 a2 c1 , N.  ELIAZ  a3 , E.  GROSSMAN  a1 , D.  FISHER  a1 a4 , I.  GOUZMAN  a1 , Z.  HENIS  a1 , S.  PECKER  a1 , Y.  HOROVITZ  a1 , M.  FRAENKEL  a1 , S.  MAMAN  a1 , V.  EZERSKY  a5 and D.  ELIEZER  a5
a1 Soreq NRC, Yavne, Israel
a2 Institute of Nuclear Fusion, Polytechnic University of Madrid, Madrid, Spain
a3 Tel Aviv University, Tel Aviv, Israel
a4 Weizmann Institute of Science, Rehovot, Israel
a5 Ben-Gurion University, Beer Sheva, Israel

Article author query
eliezer s   [Google Scholar] 
eliaz n   [Google Scholar] 
grossman e   [Google Scholar] 
fisher d   [Google Scholar] 
gouzman i   [Google Scholar] 
henis z   [Google Scholar] 
pecker s   [Google Scholar] 
horovitz y   [Google Scholar] 
fraenkel m   [Google Scholar] 
maman s   [Google Scholar] 
ezersky v   [Google Scholar] 
eliezer d   [Google Scholar] 
 

Abstract

In this paper, we suggest the creation of a nanoparticles and nanotubes by using the interaction of a femtosecond laser with a solid target in a vacuum. A simple model is used to predict the optimal target and the laser parameters for the production of efficient nanoparticles. At the Soreq laboratory, experiments are performed with aluminium and carbon targets using a femtosecond laser. The irradiated targets are composed of either a thin layer of aluminium or of carbon, deposited on a transparent heat-insulating glass substrate. The nanoparticle debris is collected on a silicone wafer for X-ray diffraction (XRD), for scanning electron microscopy (SEM), and for atomic force microscopy (AFM). For transmission electron microscopy (TEM), the debris is caught on a copper grid covered on one side with a carbon membrane. Our experiments confirm the creation of crystal nanoparticles for aluminium and nanotubes for carbon experiments.

(Received September 6 2004)
(Accepted October 29 2004)


Key Words: Femtosecond lasers; Nanoparticles; Nanotubes.

Correspondence:
c1 Address correspondence and reprint requests to: Shalom Eliezer. E-mail: eliezer@soreq.gov.il