We show that the field of the optically feasible luminal localized wave solutions of the scalar homogeneous wave equation can be modeled by means of Bessel-Gauss pulses. As the Bessel-Gauss pulses have a closed-form expression, this fact may be of great value in numerical simulations of various experimental situations.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/ol.29.001176 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spectral anomalies of femtosecond pulses with orbital angular momentum were studied in the vicinity of singularities. Bessel-Gauss (BG) beams were generated with mode-locked Ti:sapphire oscillators and dispersion-compensated diffractive axicons acting as spiral phase plates (SPPs). High-resolution two-dimensional spectral mapping was performed with a scanning fiber probe.
View Article and Find Full Text PDFIn this work, a three-dimensional and time-dependent nonlinear wave model to describe the generation of pulsed Bessel-Gauss second-harmonic waves (SHWs) is presented. Three coupled equations, two for ordinary and extraordinary fundamental waves and one for extraordinary SHWs, describing type II second-harmonic generation (SHG) in a KTiOPO (KTP) crystal were solved by considering the depletion of fundamental waves (FWs). The results examined the validity of nondepleted wave approximation against the energy of pulses, beam spot size, and interaction length.
View Article and Find Full Text PDFTheoretical and experimental investigation of generating pulsed Bessel-Gauss beams by using an axicon-based resonator.
Appl Opt
November 2012
Department of Physics, University of Isfahan, Isfahan, Iran.
Nondiffracting Bessel-Gauss beams are assumed as the superposition of infinite numbers of Gaussian beams whose wave vectors lie on a cone. Based on such a description, different methods are suggested to generate these fields. In this paper, we followed an active scheme to generate these beams.
View Article and Find Full Text PDFGeneration of pulsed Bessel-Gauss beams using passive axicon-theoretical and experimental studies.
Appl Opt
October 2012
Department of Physics, University of Isfahan, Isfahan, Iran.
Article Synopsis
- Studied how to create passive Bessel-Gauss beams using an axicon with a specially designed Gaussian resonator and measured the output from a Nd:YAG laser.
- Measured key properties of the beams such as output energy (58 mJ) and Rayleigh range (229.3 mm) for a 1° axicon, comparing them to the Gaussian mode results.
- Explored the effects of changing axicon apex angles and beam spot sizes on the properties of the generated Bessel-Gauss beams through both theoretical analysis and experiments.
Efficient generation of isolated attosecond pulses with high beam quality by two-color Bessel-Gauss beams.
Opt Lett
January 2012
Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
The generation of isolated attosecond pulses with high efficiency and high beam quality is essential for attosecond spectroscopy. We numerically investigate the supercontinuum generation in a neutral rare-gas medium driven by a two-color Bessel-Gauss beam. The results show that an efficient smooth supercontinuum in the plateau is obtained after propagation and the spatial profile of the generated attosecond pulse is Gaussian-like with the divergence angle of 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!