Results 61 to 70 of about 67,136 (339)

Spontaneous emergence of rogue waves in partially coherent waves: a quantitative experimental comparison between hydrodynamics and optics [PDF]

, 2017
Rogue waves are extreme and rare fluctuations of the wave field that have been discussed in many physical systems. Their presence substantially influences the statistical properties of an incoherent wave field.
Koussaifi, Rebecca El, Onorato, Miguel, Randoux, Stephane, Suret, Pierre, Tikan, Alexey, Toffoli, Alessandro   +5 more
core   +3 more sources

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Highly nonlinear optic nucleic acid thin-solid film to generate short pulse laser

Scientific Reports, 2023
Using aqueous precursors, we report successfully fabricating thin-solid films of two nucleic acids, ribonucleic acid (RNA) and deoxyribonucleic acid (DNA).
Marjan Ghasemi, Pulak Chandra Debnath, Byungjoo Kim, Marzieh Pournoury, Reza Khazaeinezhad, Sahar Hosseinzadeh Kassani, Dong-Il Yeom, Kyunghwan Oh   +7 more
doaj   +1 more source

Spatiotemporally mode-locked soliton fiber laser at 2.8 μm

High Power Laser Science and Engineering, 2023
Spatiotemporal mode-locking creates great opportunity for pulse energy scaling and nonlinear optics research in fiber. Until now, spatiotemporal mode-locking has only been realized in normal-dispersion dissipative soliton and similariton fiber lasers. In
Ying’an Chen, Yicheng Zhou, Zhipeng Qin, Guoqiang Xie, Peng Yuan, Jingui Ma, Liejia Qian   +6 more
doaj   +1 more source

A proposal for highly tunable optical parametric oscillation in silicon micro-resonators [PDF]

, 2008
We propose a novel scheme for continuous-wave pumped optical parametric oscillation (OPO) inside silicon micro-resonators. The proposed scheme not only requires a relative low lasing threshold, but also exhibits extremely broad tunability extending from ...
Johnson, T. J., Lin, Q., Michael, C. P., Painter, O. J., Perahia, R.   +4 more
core   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 more
wiley   +1 more source

Near-infrared multispectral photoacoustic microscopy using a graded-index fiber amplifier

Photoacoustics, 2016
We demonstrate optical resolution photoacoustic microscopy (OR-PAM) of lipid-rich tissue using a multi-wavelength pulsed laser based on nonlinear fiber optics.
Takashi Buma, Jessica L. Farland, Margaret R. Ferrari   +2 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Nonlinear-dispersive similariton of passive fiber [PDF]

Journal of the European Optical Society-Rapid Publications, 2009
Using the spectral-interferometry method for the short pulse complete characterization, we demonstrate the nature and distinctive properties of the similariton generated in single-mode fiber without gain (passive fiber) due to the combined impacts of ...
Zeytunyan A., Yesayan G., Mouradian L., Kockaert P., Emplit Ph., Louradour F., Barthélémy A.   +6 more
doaj   +1 more source

Bifurcation studies, chaotic pattern, phase diagrams and multiple optical solitons for the (2+1)-dimensional stochastic coupled nonlinear Schrödinger system with multiplicative white noise via Itô calculus

Results in Physics, 2023
The stochastic coupled nonlinear Schrödinger systems are very important equations which can be wildly used in the fields of the optical-fiber communications, nonlinear optics, plasma physics, ecological system, statistical mechanics and so on.
Lu Tang
doaj   +1 more source