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Photonics, Volume 10, Issue 2

February 2023 - 130 articles

Cover Story: We report an experimental demonstration of a method for generating single spike spectra at the soft X-ray SASE3 undulator at the European XFEL. Our approach, which we term "attoseconds-at-harmonics", involves a two-stage setup. The first stage amplifies bunching at both the fundamental and higher harmonics, while the second stage, set to a specific harmonic (in this case the fourth), further amplifies the bunching and generates attosecond-level pulses. Results of our experiments show the detection of single spike spectra at the 4th harmonic ranging from 3% to 13%, with an estimated pulse duration of 650 attoseconds. This method only requires the availability of variable gap undulators. As such, it has the potential to be a valuable tool for high-repetition-rate free electron lasers, considering the appearance frequency of short pulses. View this paper
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Articles (130)

  • Communication
  • Open Access
2,641 Views
10 Pages

20 February 2023

A hybrid Q-switching method based on a special-shaped saturated absorber was proposed for simultaneous manipulation of the temporal and spatial behaviors of a solid-state pulse laser. The temporal–spatial rate equation model of the laser was gi...

  • Feature Paper
  • Article
  • Open Access
5 Citations
6,756 Views
19 Pages

Revisiting Experimental Signatures of the Ponderomotive Force

  • Bjorn Manuel Hegelich,
  • Lance Labun and
  • Ou Z. Labun

20 February 2023

The classical theory of single-electron dynamics in focused laser pulses is the foundation of both the relativistic ponderomotive force (RPF), which underlies models of laser-collective-plasma dynamics, and the discovery of novel strong-field radiati...

  • Article
  • Open Access
9 Citations
3,275 Views
13 Pages

19 February 2023

The potential-induced degradation (PID) of photovoltaic (PV) modules is one of the most extreme types of degradation in PV modules, where PID-affected modules can result in an almost 25% power reduction. Understanding how module defects impact PID is...

  • Article
  • Open Access
11 Citations
3,661 Views
12 Pages

Single-Pixel Hyperspectral Imaging via an Untrained Convolutional Neural Network

  • Chen-Hui Wang,
  • Hong-Ze Li,
  • Shu-Hang Bie,
  • Rui-Bing Lv and
  • Xi-Hao Chen

19 February 2023

Single-pixel hyperspectral imaging (HSI) has received a lot of attention in recent years due to its advantages of high sensitivity, wide spectral ranges, low cost, and small sizes. In this article, we perform a single-pixel HSI experiment based on an...

  • Article
  • Open Access
7 Citations
2,290 Views
14 Pages

19 February 2023

The traditional light-field coding algorithm used in a multi-projector-type light-field display system requires sophisticated and complex three-dimensional modeling processes or parallax images obtained through dense capture. Here we propose an algor...

  • Communication
  • Open Access
2 Citations
2,472 Views
8 Pages

19 February 2023

With the benefits of non–invasive and low radiation, terahertz radiation has shown great potential in biomedical imaging applications. However, the low spatial resolution of the imaging system significantly affects its application in these fiel...

  • Review
  • Open Access
27 Citations
7,133 Views
17 Pages

Recent Advances and Outlook in Single-Cavity Dual Comb Lasers

  • Chenghong Zhang,
  • Fangrui Qu,
  • Peiwen Ou,
  • Haoqi Sun,
  • Shi He and
  • Bo Fu

18 February 2023

Dual-comb spectroscopy as an emerging tool for spectral analysis has been investigated in a wide range of applications, including absorption spectroscopy, light detection and ranging, and nonlinear spectral imaging. Two mutually coherent combs facili...

  • Article
  • Open Access
9 Citations
2,459 Views
15 Pages

18 February 2023

In this work, we consider an environment formed by incoherent photons as a resource for controlling open quantum systems via an incoherent control. We exploit a coherent control in the Hamiltonian and an incoherent control in the dissipator which ind...

  • Communication
  • Open Access
6 Citations
2,243 Views
10 Pages

Sub-40 GHz Broadband Polarization Chaos Generation Using Mutually Coupled Free-Running VCSELs

  • Haofan Bian,
  • Xiaomai Zhang,
  • Pu Li,
  • Zhiwei Jia,
  • Li Ma,
  • Bingjie Xu,
  • Keith Alan Shore,
  • Yuwen Qin and
  • Yuncai Wang

17 February 2023

We propose a simple method to generate broadband polarization chaos using two mutually coupled free-running vertical-cavity surface-emitting lasers (VCSELs). Specifically, we quantitatively investigate the effect of critical external parameters (bias...

  • Article
  • Open Access
4 Citations
3,474 Views
28 Pages

16 February 2023

Aiming to solve the problem of the high-precision deformation measurement of large-scale satellite structures in manufacturing and testing environments, this paper proposes a measurement method based on the idea of fusing actual measurements with fin...

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Photonics - ISSN 2304-6732Creative Common CC BY license