Related Experiment Video
Updated: May 20, 2026
12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Airy-related beam generated from flat-topped Gaussian beams
Yunfeng Jiang1, Kaikai Huang, Xuanhui Lu
1Institute of Optics, Department of Physics, Zhejiang University, Hangzhou, China.
Summary
Researchers created a new Airy-related beam from flat-topped Gaussian beams. This novel beam exhibits Airy profile, quasi-diffraction-free propagation, and transverse acceleration, similar to traditional Airy beams.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Airy beams are known for their unique propagation dynamics, including self-healing and non-diffracting properties.
- Traditional Airy beams are typically generated from fundamental Gaussian beams.
Purpose of the Study:
- To investigate a novel Airy-related beam generated from flat-topped Gaussian beams.
- To analyze the propagation characteristics of this new beam type.
Main Methods:
- Application of the Airy transform to flat-topped Gaussian beams.
- Theoretical analysis of beam propagation dynamics.
Main Results:
- A new Airy-related beam was successfully generated from flat-topped Gaussian beams.
- The generated beam exhibits an Airy profile, quasi-diffraction-free propagation, and transverse acceleration.
- The propagation dynamics are controllable by adjusting the beam order (N) of the flat-topped Gaussian beam.
Conclusions:
- Flat-topped Gaussian beams can serve as a source for generating Airy-related beams with desirable propagation characteristics.
- This new beam offers a tunable platform for exploring Airy beam physics and potential applications.
Related Concept Videos
01:16Shear on the Horizontal Face of a Beam Element
To understand shear on the flat side of a prismatic beam element, consider the vertical and horizontal shearing forces, and the normal forces, acting on the element. The element's upper (U) and lower (L) sections, which are divided by the beam's neutral axis, are examined. The equilibrium of these forces is determined by applying the equilibrium equation, which helps identify the horizontal shearing force. This force is directly related to the bending moments and the cross-section's first...
01:15Beams with Symmetric Loadings
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
The M/EI...
01:30Beams
Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
01:17Beams with Unsymmetric Loadings
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
01:19Deflection of a Beam
Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
01:15Deformation of a Beam under Transverse Loading
Understanding beam deflection, particularly for indeterminate beams with overhanging segments and multiple concentrated loads, is crucial for ensuring structural integrity and functionality. The process begins with constructing an accurate free-body diagram, which helps identify the forces and moments acting on the beam. This diagram is vital for visualizing how bending moments vary along the beam's length, influencing its curvature.
The insights from the bending moment diagram extend to...
The insights from the bending moment diagram extend to...