Applications of Tekhnoscan's lasers
in nano-science and nano-technologies
Research methods relying upon lasers and laser technologies are widely
applied in material sciences and nano-system research. The area of these
methods and technologies is determined by the parameters of laser radiation:
wavelength, pulse energy or output power of continuous radiation, pulse
duration or radiation line width (for CW lasers), etc.
Continuous lasers with narrow radiation line
and possibility to detune the output wavelength are used for
spectroscopy of nano-objects (Raman scattering, light absorption in a wide
spectral range), structural characterisation of semiconductor structures, for
studies of photo-dynamic action of inorganic semiconductor nano-particles,
for investigation into mechanisms of bio-synthesis of inorganic semiconductors,
for research to create new types of optical devices for reading and writing
data, as well as in many other problems within the industry of nano-systems
and materials ...
Lasers with ultra-fast light pulses (femtosecond,
picosecond) are applied in studies of ultra-fast physico-chemical processes
in nano-objects, in research related to plasmonics and meta-materials, optical
trapping of nano-particles and their manipulation (laser "tweezers"),
for generation of terahertz radiation from interaction of light with
semiconducting or metallic nano-structures, in micro- and nano-processing of
materials, and in modification of substances under action of laser radiation.
With the explosive development of research in this field new promising
nano-technological applications of femto- and pico-second lasers constantly
emerge. It is possible to draw many interesting examples, such as
nano-surgery-laser operations on individual living cells (micro-injections
into separate cells through holes in the cellular membrane made with the help
of a femtosecond laser operating in near IR range), rapid virus detection by
Raman response amplified by introduced silver nano-rods ...
Lasers for Nanotechnologies
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