Invariant Bessel–Gauss beams have attracted great interest for transparent material
microprocessing applications. The small central peak and elongated focal region of the …

Non-diffracting Bessel beams and its modified versions are widely used in industry for
transparent material micro processing purposes-cutting, drilling etc., due to generation of …

Long focal lines with transverse spot sizes as small as a few wavelengths are called optical
needles. A zeroth order Bessel beam being a good example is widely used in such …

Here, we present thorough research into high-order vector Bessel-Gauss beams from a
theoretical perspective, with experimental realization and application to transparent-material …

Bessel beams with tunable spot size are desirable for many applications such as laser
material processing, optical trapping, and imaging. In this paper, we report experimental and …

Nondiffracting beams are known for their long line of focus, which has various applications
in laser materials processing. Zeroth order Bessel beam is usually generated with an axicon …

Non-diffracting beams have contributed greatly to recent developments in high power
applications such as laser micromachining. Well known for their elongated focal region (also …

The generation of an elliptical Bessel–Gauss beam has become a topic of interest in
ultrafast laser processing of transparent materials because of its nearly non-diffractive …

Bessel beams generated via axicons are widely used for various applications like optical
tweezers or laser microfabrication of transparent materials. The specific intensity profile …

Beam profile engineering, where a desired optical intensity distribution can be generated by
an array of phase shifting (or amplitude changing) elements is a promising approach in laser …