# Unraveling beam self-healing.

@article{Aiello2017UnravelingBS, title={Unraveling beam self-healing.}, author={Andrea Aiello and Girish S. Agarwal and Martin Pa{\'u}r and Bohumil Stoklasa and Zdeněk Hradil and Jaroslav Řeh{\'a}{\vc}ek and Pablo de la Hoz and Gerd Leuchs and Luis L. S{\'a}nchez-Soto}, journal={Optics express}, year={2017}, volume={25 16}, pages={ 19147-19157 } }

We show that, contrary to popular belief, diffraction-free beams may not only reconstruct themselves after hitting an opaque obstacle but also, for example, Gaussian beams. We unravel the mathematics and the physics underlying the self-reconstruction mechanism and we provide for a novel definition for the minimum reconstruction distance beyond geometric optics, which is in principle applicable to any optical beam that admits an angular spectrum representation. Moreover, we propose to quantify…

## 18 Citations

### Revealing the modal content of obstructed beams

- Physics
- 2020

In this work, we propose a predictor/indicator of the self-healing ability of coherent structured light beams: the field's modal content. Specifically, the fidelity between the obstructed and…

### Recovery of nonseparability in self-healing vector Bessel beams

- PhysicsPhysical Review A
- 2018

One of the most captivating properties of diffraction-free optical fields is their ability to reconstruct upon propagation in the presence of an obstacle both, classically and in the quantum regime.…

### Elegant Gaussian beams: nondiffracting nature and self-healing property.

- PhysicsApplied optics
- 2020

It is shown that the eGBs in cartesian and cylindrical coordinates are asymptotically equivalent to pseudo-nondiffracting beams (pNDBs) in the same coordinates (cosine-Gauss and Bessel- Gauss, respectively), which means that theeGBs class can be used as an alternative to pNDBs.

### Self-healing properties of Hermite-Gaussian correlated Schell-model beams.

- PhysicsOptics express
- 2020

The influence of the obstacle position separation from the source on the self-healing capacity of partially coherent beams is studied using Hermite-Gaussian correlated Schell-model beams as a case in point and it is established that the shorter the distance between the obstacle and the source plane and the longer the Distance between the obstacles and the observation (receiver) plane, the better theSelf- healing capacity.

### Do Laguerre–Gaussian beams recover their spatial properties after all obstacles?

- Physics
- 2020

It has been known for some time that Bessel–Gaussian beams and their associated families self-heal after encountering obstacles. Recently, it has been shown theoretically and experimentally that…

### Self-healing and transformation characteristics of obstructed Hermite-Gaussian modes composed structured beams

- Physics
- 2021

The self-healing characteristic of a laser beam is that the beam can reconstruct itself when it encounters obstacles in the process of propagation. Self-healing properties have important applications…

### Are Bessel beams resilient to aberrations and turbulence?

- PhysicsJournal of the Optical Society of America. A, Optics, image science, and vision
- 2018

The propagation of Bessel beams through aberrated obstacles is considered and it is shown that the self-healing is not guaranteed, but rather a function of the severity of the aberration.

### What are the traveling waves composing the Hermite-Gauss beams that make them structured wavefields?

- PhysicsOptics express
- 2021

It is demonstrated that Hermite-Gaussian beams are constituted by the superposition of four traveling waves, and it is identified that the paraxial approximation introduces spurious effects in the solutions that are unphysical.

### Hybrid refractive-diffractive axicons for Bessel-beam multiplexing and resolution improvement.

- PhysicsOptics express
- 2020

Using gray-scale lithography with high-current focused Xe ion-beams, hybrid refractive-diffractive micro-axicons that feature diffractive gratings engraved on their conical surfaces are realized that feature excellent agreement with theoretical expectations.

### Manipulation and control of 3-D caustic beams over an arbitrary trajectory.

- PhysicsOptics express
- 2020

We present an algorithm for manipulating and controlling 3-D field patterns, with energy confined to the narrow vicinity of predefined 3-D trajectories in free-space, which are of arbitrary curvature…

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