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**Pages: **105-111.

**Full text of article:** Russian language.

**Abstract:**

Forces exerted upon a dielectric cylinder of infinite length and arbitrary, or circular, cross-section by the non-paraxial cylindrical Gaussian beam are considered. The projections of the vector of the light force pressure exerted upon a dielectric cylinder of arbitrary and circular cross-section are expressed analytically. In particular, the pressure force is expressed through the coefficients of decomposition of the non-paraxial Gaussian beam into the cylindrical functions. Using numerical examples, a possibility to optically trap a circular-shaped cylinder in two oppositely directed Gaussian beams or a single non-paraxial Gaussian beam is demonstrated.

**Keywords**:

non-paraxial Gaussian beam, circular-shaped cylinder, circular cross-section, optically trap.

**Citation**:

Kotlyar VV, Nalimov AG. Calculating the pressure force of the non-paraxial cylindrical Gaussian beam exerted upon a homogeneous circular-shaped cylinder. Computer Optics 2005; 27: 105-111.

**Acknowledgements**:

This work was supported by the Russian-American program "Basic Research and Higher Education" (BRHE), grant CRDF REC-SA-014-02 and the presidential grant NSh-1007.2003.01.

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