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 …

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

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

We report the creation of white-light, achromatic Bessel beams using a spatial light
modulator and a prism to compensate for the dispersion. Unlike the Bessel beam created by …

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

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 …

Bessel beams are remarkable since they do not diverge. Accordingly, they have numerous
applications ranging from precision laser micro-machining to laser particle acceleration. We …

Shaping light beams as they propagate out of the tips of optical fibers is a desired ability, as
the light could be tailored for various applications in a miniaturized, integrated, and cost …

We generalize the well-known method of generating nondiffracting beams based on axicons
by allowing phase modulations with azimuthal dependencies. This generalization includes …