FAIL (the browser should render some flash content, not this).

Laser beam shaping has never been so easy!

Laser beam shaping has never been so easy!

Laser beam shaping has never been so easy!
 

Laser beam shaping has never been so easy!

 
Laser beam shaping has never been so easy!
Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!
 

Dr. Alexander Laskin provides an overview of AdlOptica 
				and discusses the company's beam shaping optics products.

Focal-piShaper in Photovoltaics


Finalist of 2010 Prism Awards for Photonics Innovation

Laser beam shaping has never been so easy!

 

(based on materials provided by the courtesy of  Consortium for Advanced Radiation Sources, University of Chicago, USA)

The Laser Heating technique plays an essential role for in-situ high pressure high temperature studies of the physical and chemical properties of materials in the diamond anvil cell (DAC) and minerals at conditions relevant to the Earth’s deep interior.

Realistic simulation of heating effects with using a laser can be achieved when the Flat Top intensity distribution of a laser beam is provided. Just this task is solved by Focal‑πShaper (or F‑πShaper) – series of refractive beam shapers realizing so called field mapping approach with using aspheric optical surfaces and intended to convert the Gaussian beam profile of a TEM00 laser, like the fiber laser, to flat top and other intensity profiles in zone of focal plane of a diffraction limited lens.
Focal-piShaper for Advanced Flat Top Laser Heating System
Example of optical setup to realize the Flat Top Laser Heating (FT‑LH) is presented on right figure. Here the sample S is irradiated from two sides by the laser radiation from two fiber lasers L by means of the diffraction limited objective lenses O.

The initial Gaussian laser beam is converted, by means of the beam shaping optics BSO on the base of the Focal‑πShaper 9_1064, to the beam which intensity distribution is optimized to create the flattop profile on the sample S.

Other details of this optical setup as well as detailed description of the results achieved can be retrieved from the article*.
Focal-piShaper for Advanced Flat Top Laser Heating System

On the right bottom figure there are presented comparative results of Laser Heating of tungsten foil by:

  • a focused TEM01 beam (left column),
  • a flattop beam created from a TEM00 beam of fiber laser with using the Focal‑πShaper 9_1064 (two right columns).

The laser power is stepwise increased in top-down direction.
Brightness of dots corresponds to the temperature.
In case of “pure” TEM01:

  • varying the laser power leads to evident variation of dot diameter,
  • the range of dot diameters is extremely wide,
  • temperature distribution within a dot is non-uniform.

Note: in case of “pure” TEM00 beam the dot diameter variation is even stronger.
In case of flattop beam:

  • the dot size is almost invariable by varying the laser power,
  • the temperature is uniform all over the dot,
  • varying the laser power leads to corresponding varying of the dot temperature.
Focal-piShaper for Advanced Flat Top Laser Heating System
Evidently, applying the Focal‑πShaper 9_1064 lets it possible to realize the Flat Top Laser Heating (FT‑LH) and provide most stable conditions for experimental investigations of physical and chemical properties of materials.
piShaper Versatile Beam Shaping Optics (Beam shaping)  - Leaflet - Focal-πShaper for Advanced Flat Top Laser Heating System

 

Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!
   

       Copyright © 2004 - 2017

 

Home | News | Publications | Products | Inquiry | Download | Impressum

Laser beam shaping has never been so easy!