News
Features
Documentation
Application examples
FDTD tutorial
Download
Participate

GSvit covers set of numerical tools for Finite Difference in Time Domain calculations supporting use of Nvidia CUDA environment compatible graphics cards. Main scientific purposes include research in nanotechnology and nanoscale optics, like scanning near-field optical microscopy, tip enhanced Raman scattering, rough surface scattering, etc. However, as FDTD is an universal method, it can be used for any other purposes.

Main mission of this project is to convert set of already developed software tools described here:

P. Klapetek, M. Valtr: Near-field optical microscopy simulations using graphics processing units, Surf. Interface Analysis, 2010, 42, pp 1109-1113

P. Klapetek et al: Rough surface scattering simulations using graphics cards, Applied Surface Science, 2010, 256, pp 5640-5643.

into GNU GPL based open source software. This process is rather slow, at least for some of the algorithms, but seems to be converging.

Since version 1.6 also a graphical user interface XSvit is provided, useful for parameter files setup and visualisation:

News

03.08.2015

Please note that the link for download of Windows version wasn't updated and it was still connected with the older 1.8 version. This was corrected now and the link is connected with the newer 1.8.1 version. We are sorry for this!

18.02.2015

We invite all the fans of Scanning Probe Microscopy to our SPM workshop, March 25-27th in Lednice, Czech Republic

13.02.2015

Version 1.8.1 was released. It is a small bug fix release. Versioning was changed to three number format. Check the download page.

12.02.2015

Version 1.8 was released. Piecewise Linear Recursive Convolution and Auxiliary Differential Equations method were added. Many bugs were fixed.

17.09.2014

Version 1.7 was released. One small step for mankind, one giant leap for GSvit.

26.03.2014

Version 1.6 was released. It is the first release with XSvit - parametr file viewer and GSvit launcher. Bugreports are welcome!

26.02.2014

A bug fix for Windows OS was released. The mising libraries bug was fixed.

05.02.2014

Version 1.5 was released. A bug in tetrahedron loading was corrected and layered TSF and layered focused TSF were implemented (CPU only).

03.01.2014

Version 1.4 was released. Optical force calculation was introduced and the Debye and critical point model media now work on GPU.

11.12.2013

Version 1.3 was released. Significant speedup on CPU and a slight speedup of some algorithms on GPU was achieved.

30.09.2013

Version 1.2 was released. Focused light source was added and focused light source and periodic NFFF were implemented on GPU.

24.07.2013

Version 1.1 was released. Periodic near-to-far field transform was added and many bugs were fixed.

13.06.2013

Version 1.0 was released. Generaly, a bug fix release.

10.04.2013

Version 0.99 was released. Several new data inputs were introduced.

Contact

Petr Klapetek, pklapetek(at)cmi(dot)cz

Acknowledgements

Project is developed at Department of Nanometrology, Czech Metrology Institute, and is developed with support of EURAMET joint research projects "Scatterometry" and "Raman" receiving funding from the European Community's Seventh Framework Programme, ERA-NET Plus, under Grant Agreement No. 217257 and by Ministry of Trade of the Czech Republic under contract FR/TI1/168







(c) Petr Klapetek, 2013