The B.I Stepanov Institute of Physics offers consumers a radially or azimuthally polarized conical light beam generator under a manufacturing agreement and is looking for partners to conclude a distribution services agreement.

Radially or azimuthally polarized conical light beam generator is a system consisting of a linearly-polarized laser radiation source and a unit converting this radiation into radially or azimuthally polarized conical light beam, namely, into Bessel or ring light beam. The basic optical layout of the device is shown on the figure.

Application:
The device can be manufactured by the order of the interested organizations to obtain radially or azimuthally polarized light beams with the aim to use them in profilometry and precision laser processing of materials. The axial symmetry of the electric vector in the generated light beam allows one to have uniform azimuthal coordinate conditions in terms of the polarization
of the incident to the studied surface radiation. Radially polarized laser beam focusing will allow one to form conical light beams with low-diameter intensity maxima due to the longitudinal component of the electric field.

Technical parameters:
- laser radiation wavelength is determined by the wavelength of the laser radiation source used in the generator in the range of 400÷1100 nm;
- operation mode is pulsed or continuous, corresponds to the operation mode of the laser radiation source used in the generator;
- aperture of the converted laser radiation is 1÷10 mm;
- power of the converted laser radiation does not exceed the threshold - power of the converted laser radiation does not exceed the threshold of the beam strength of the biaxial crystal used in the device with relation to the axial maximum intensity of the output beam inside the crystal;
- conversion factor: when using the illumination of the surfaces of the optical elements included in the device - up to 90%, with no illumination - up to 65%;
- longitudinal size (length) of the device equals to the sum of the length of the laser radiation source used in the device and - longitudinal size (length) of the device equals to the sum of the length of the laser radiation source used in the device and the length of the Converter, and is up to 50 cm;
- transverse sizes (width and height) of the device are not less than the corresponding dimensions of the laser radiation source.

Catalogue-2022 of developments and services.

At present the Institute of Physics works in the following main directions:
- Laser physics, development and fabrication of laser systems and technologies of their application in medicine, ecology, metrology, industry, ect.
- Physical and nonlinear optics, revealing and application of regularities of powerful laser radiation propagation in various media.
- Optical spectroscopy, development and application of methods and devices for investigation of properties and structure of various materials including biological tissue.
- Nano-optics and nano-materials, investigation and development of questions of practical application of nano-structures.
- Micro- and optoelectronics; research of properties and structure of microelements of electronics, development of problems of their practical application.
- Quantum optics, investigation of quantum properties of electromagnetic radiation in informatics and cryptography.
- Optics of scattering media, development of methods and devices for investigation and diagnostics of atmosphere and
other media, including biological ones.
- Plasma physics, development and creation of plasma technologies and systems for processing and modification of - Plasma physics, development and creation of plasma technologies and systems for processing and modification of properties of materials and their surfaces.
- Physics of elementary particles and fundamental interactions, nuclear spectroscopy.

The Institute of Physics has scientific contacts with most developed countries. Currently, more than 50 agreements on scientific and technical cooperation have been concluded with organizations from 15 countries.

The Institute of Physics develops, manufactures and supplies to many countries of the world (Russia, China, Germany, France, USA, Saudi Arabia, India, etc.) laser and optical devices for various purposes, as well as innovative components for laser technology.

Customers interested in purchasing the radially or azimuthally polarized conical light beam generator under a manufacturing agreement.

Partners interested in purchasing the radially or azimuthally polarized conical light beam generator under a distribution services agreement.