Optical Drills by Dynamic High-Order Bessel Beam Mixing

High power Bessel-like laser beam by thin disk geometry

Diffraction-free beam and optical invariant field are special cases of optical wave propagation that have caught general attention in the last decade. Temporal solitons were the first class of optical signals to be recognized as being invariant under propagation (Hasegawa and Tapert, 1973) and to be experimentally demonstrated (Mollenaure et al., 1980). But, they require a nonlinearity to prese...

Second-harmonic generation of the nth-order Bessel beam.

We investigate the second-harmonic generation of the nth-order Bessel beam in the nonlinear medium. The analysis is based on the Khokhlov-Zabolotskaya-Kuznetsov wave equation under the second-order approximation in nonlinear acoustics. The theory indicates that for an nth-order Bessel beam, the second-harmonic beam is nearly diffraction-free in the radial direction and behaves as a Bessel beam ...

single fine - mode aerosol particles using a Bessel beam optical

Integrated optical phased arrays for quasi-Bessel-beam generation.

Integrated optical phased arrays for generating quasi-Bessel beams are proposed and experimentally demonstrated in a CMOS-compatible platform. Owing to their elongated central beams, Bessel beams have applications in a range of fields, including multiparticle trapping and laser lithography. In this Letter, continuous Bessel theory is manipulated to formulate the phase and amplitude conditions n...

Conical diffraction and Bessel beam formation with a high optical quality biaxial crystal.

The manipulation of a Gaussian laser beam using conical diffraction in a high optical quality biaxial crystal of KGd(WO(4))(2) has been examined in detail with emphasis on the experimental techniques involved and intuitive explanations of the notable features. Two different optical arrangements were used to form the Pogendorff double-ring light pattern in the focal image plane. The formation of...