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Nonlinear Optical Material
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Nonlinear Optical Material

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (30 June 2017) | Viewed by 15509

Special Issue Editor

Dr. Alessandro Salandrino

E-Mail Website
Guest Editor
Department of Electrical Engineering and Computer Science, University of Kansas, 1520 West 15th Street, 3030 Eaton Hall Lawrence, KS 66045-7608, USA
Interests: applied electromagnetics, optics and photonics; metamaterials; plasmonics; nonlinear optics

Special Issue Information

Dear Colleagues,

Nonlinear optical materials play a fundamental role in the control of light using light. The applications of nonlinear optical media are ubiquitous in modern technology, ranging from nonlinear frequency generation and metrology to optical limiting and material processing, to cite a few. With the advent of metamaterials, plasmonics, and two-dimensional materials, novel avenues have emerged to control and enhance nonlinear optical interactions at the nanoscale, with the possibility of creating nonlinear effective media with enhanced and exotic properties. This Special Issue focuses on the most recent advances in nonlinear optical materials and related applications. The topics of interest encompass the entire spectrum of research areas pertaining to nonlinear optical materials and nanostructured composite media, including (but not limited to):

  • Novel nonlinear materials
  • Nanostructured nonlinear materials and nonlinear metamaterials
  • Nonlinear interactions at surfaces and nonlinear metasurfaces
  • Nonlinear Plasmonics
  • Nonlinear optics in two-dimensional materials (i.e., graphene, MoS2, etc.)
  • Theoretical models of nonlinear light-matter interactions
  • Synthesis and fabrication techniques
  • Characterization techniques

Dr. Alessandro Salandrino
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (3 papers)

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Research

7247 KiB  
Article
Graphene Oxide: A Perfect Material for Spatial Light Modulation Based on Plasma Channels
by Chao Tan, Xinghua Wu, Qinkai Wang, Pinghua Tang, Xiaohui Shi, Shiping Zhan, Zaifang Xi and Xiquan Fu
Materials 2017, 10(4), 354; https://doi.org/10.3390/ma10040354 - 28 Mar 2017
Cited by 3 | Viewed by 4339
Abstract
The graphene oxide (GO) is successfully prepared from a purified natural graphite through a pressurized oxidation method. We experimentally demonstrate that GO as an optical media can be used for spatial light modulation based on plasma channels induced by femtosecond pulses. The modulated [...] Read more.
The graphene oxide (GO) is successfully prepared from a purified natural graphite through a pressurized oxidation method. We experimentally demonstrate that GO as an optical media can be used for spatial light modulation based on plasma channels induced by femtosecond pulses. The modulated beam exhibits good propagation properties in free space. It is easy to realize the spatial modulation on the probe beam at a high concentration of GO dispersion solutions, high power and smaller pulse width of the pump beam. We also find that the spatial modulation on the probe beam can be conveniently adjusted through the power and pulse width of pump lasers, dispersion solution concentration. Full article
(This article belongs to the Special Issue Nonlinear Optical Material)
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2345 KiB  
Article
Conjugation Length Effect on TPA-Based Optical Limiting Performance of a Series of Ladder-Type Chromophores
by Yujin Zhang, Wei Hu, Liyun Zhao, Jiancai Leng and Hong Ma
Materials 2017, 10(1), 70; https://doi.org/10.3390/ma10010070 - 16 Jan 2017
Cited by 2 | Viewed by 4490
Abstract
Nonlinear optical properties of a series of newly-synthesized ladder-type chromophores containing oligo-p-phenylene moiety with different π-conjugated lengths were theoretically studied by numerically solving the rate equations and the field intensity equation with an iterative predictor-corrector finite-difference time-domain technique. Ab initio calculation [...] Read more.
Nonlinear optical properties of a series of newly-synthesized ladder-type chromophores containing oligo-p-phenylene moiety with different π-conjugated lengths were theoretically studied by numerically solving the rate equations and the field intensity equation with an iterative predictor-corrector finite-difference time-domain technique. Ab initio calculation results show that the compounds can be described by the three-level model. Based on the two-photon absorption mechanism, highly efficient optical limiting performances are demonstrated in the chromophores, which strongly depend on the π-conjugated length of the molecule. Special attention has been paid to the dynamical two-photon absorption, indicating that the parameter of the medium can affect the dynamical two-photon absorption cross section. Our numerical results agree well with the experimental measurements. It reveals that the increase in the π-conjugated length of ladder-type oligo-p-phenylene for these chromophores leads to enhanced nonlinear optical absorption. The results also provide a method to modulate the optical limiting and dynamical two-photon absorption of the compounds by changing the molecular density and thickness of the absorber. Full article
(This article belongs to the Special Issue Nonlinear Optical Material)
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8040 KiB  
Article
A Filmy Black-Phosphorus Polyimide Saturable Absorber for Q-Switched Operation in an Erbium-Doped Fiber Laser
by Tianxian Feng, Dong Mao, Xiaoqi Cui, Mingkun Li, Kun Song, Biqiang Jiang, Hua Lu and Wangmin Quan
Materials 2016, 9(11), 917; https://doi.org/10.3390/ma9110917 - 11 Nov 2016
Cited by 24 | Viewed by 6258
Abstract
We demonstrate an erbium-doped fiber laser passively Q-switched by a black-phosphorus polyimide film. The multi-layer black-phosphorus (BP) nanosheets were prepared via a liquid exfoliation approach exploiting N-methylpyrrolidone as the dispersion liquid. By mixing the BP nanosheets with polyimide (PI), a piece of [...] Read more.
We demonstrate an erbium-doped fiber laser passively Q-switched by a black-phosphorus polyimide film. The multi-layer black-phosphorus (BP) nanosheets were prepared via a liquid exfoliation approach exploiting N-methylpyrrolidone as the dispersion liquid. By mixing the BP nanosheets with polyimide (PI), a piece of BP–PI film was obtained after evaporating the mixture in a petri dish. The BP–PI saturable absorber had a modulation depth of 0.47% and was inserted into an erbium-doped fiber laser to realize passive Q-switched operations. The repetition rate of the Q-switched laser increased from 5.73 kHz to 31.07 kHz when the laser pump was enhanced from 31.78 mW to 231.46 mW. Our results show that PI is an excellent host material to protect BP from oxidation, and the BP–PI film can act as a promising nonlinear optical device for laser applications. Full article
(This article belongs to the Special Issue Nonlinear Optical Material)
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