scholarly journals Multi-ionization of the Cl2 molecule in the near-infrared femtosecond laser field

RSC Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 332-337
Author(s):  
Jian Zhang ◽  
Zhipeng Li ◽  
Yan Yang
Keyword(s):  
Femtosecond Laser ◽  
Laser Field ◽  
Near Infrared ◽  
Imaging Technique ◽  
Electron Ionization ◽  
Ion Imaging

The multi-electron ionization and subsequent dissociation of the Cl2 molecule in a near-infrared femtosecond laser field was investigated via the dc-sliced ion imaging technique.

Dissociative photoionization of 1,2-dichloroethane in intense near-infrared femtosecond laser field

2017 ◽  
Vol 667 ◽  
pp. 238-243 ◽  
Author(s):  
Jian Zhang ◽  
Yan Yang ◽  
Zhipeng Li ◽  
Shian Zhang ◽  
Zhenrong Sun
Keyword(s):  
Femtosecond Laser ◽  
Laser Field ◽  
Near Infrared ◽  
Dissociative Photoionization

Coulomb explosion and dissociative ionization of 1,2-dibromoethane under an intense femtosecond laser field

RSC Advances ◽  
2014 ◽  
Vol 4 (85) ◽  
pp. 45300-45305 ◽  
Author(s):  
Hua Wu ◽  
Shian Zhang ◽  
Yan Yang ◽  
Shengzhi Sun ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Field ◽  
Near Infrared ◽  
Coulomb Explosion ◽  
Dissociative Ionization ◽  
Imaging Technology ◽  
Slice Imaging

Coulomb explosion and dissociative ionization of 1,2-dibromoethane are experimentally investigated in a near-infrared (800 nm) femtosecond laser field by dc-slice imaging technology.

Dissociative ionization and Coulomb explosion of ethyl bromide under a near-infrared intense femtosecond laser field

RSC Advances ◽  
2015 ◽  
Vol 5 (46) ◽  
pp. 37078-37084 ◽  
Author(s):  
Chong Teng ◽  
Hua Wu ◽  
Jian Zhang ◽  
Yan Yang ◽  
Tianqing Jia ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Field ◽  
Near Infrared ◽  
Coulomb Explosion ◽  
Ethyl Bromide ◽  
Dissociative Ionization

The dissociation pathways for H2 and H2+ elimination from the parent ions C2H5Br+ and C2H5Br2+ are theoretically and experimentally demonstrated.

scholarly journals Single-shot imaging of surface molecular ionization in nanosystems

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Fenghao Sun ◽  
Hui Li ◽  
Shanshan Song ◽  
Fei Chen ◽  
Jiawei Wang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Strong Field ◽  
Imaging Technique ◽  
Near Field ◽  
Velocity Map Imaging ◽  
Single Shot ◽  
Surface Molecules ◽  
Nanoparticle Interactions ◽  
Field Response ◽  
Ion Species

Abstract Using single-shot velocity map imaging technique, explosion imaging of different ion species ejected from 50 nm SiO2 nanoparticles are obtained excitedly by strong near-infrared and ultraviolet femtosecond laser fields. Characteristic momentum distributions showing forward emission of the ions at low excitation intensities and shock wave behaviors at high intensities are observed. When the excitation intensity is close to the dissociative ionization threshold of the surface molecules, the resulting ion products can be used to image the instant near-field distributions. The underlying dynamics of shock formation are simulated by using a Coulomb explosion model. Our results allow one to distinguish the ultrafast strong-field response of various molecular species in nanosystems and will open a new way for further exploration of the underlying dynamics of laser-and-nanoparticle interactions.

scholarly journals Antireflective and Superhydrophilic Structure on Graphite Written by Femtosecond Laser

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 236
Author(s):  
Rui Lou ◽  
Guangying Li ◽  
Xu Wang ◽  
Wenfu Zhang ◽  
Yishan Wang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Near Infrared ◽  
High Efficiency ◽  
Electronic Devices ◽  
Sample Surface ◽  
Graphite Surface ◽  
Hazardous Substances ◽  
Functional Surface ◽  
Nano Structures ◽  
Average Reflectance

Antireflection and superhydrophilicity performance are desirable for improving the properties of electronic devices. Here, we experimentally provide a strategy of femtosecond laser preparation to create micro-nanostructures on the graphite surface in an air environment. The modified graphite surface is covered with abundant micro-nano structures, and its average reflectance is measured to be 2.7% in the ultraviolet, visible and near-infrared regions (250 to 2250 nm). The wettability transformation of the surface from hydrophilicity to superhydrophilicity is realized. Besides, graphene oxide (GO) and graphene are proved to be formed on the sample surface. This micro-nanostructuring method, which demonstrates features of high efficiency, high controllability, and hazardous substances zero discharge, exhibits the application for functional surface.

scholarly journals Regulating disordered plasmonic nanoparticles into polarization sensitive metasurfaces

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shulei Li ◽  
Mingcheng Panmai ◽  
Shaolong Tie ◽  
Yi Xu ◽  
Jin Xiang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Metallic Nanoparticles ◽  
Near Infrared ◽  
Optical Memory ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Optical Diffraction ◽  
Plasmonic Nanoparticles ◽  
Direct Laser

Abstract Metasurfaces composed of regularly arranged and deliberately oriented metallic nanoparticles can be employed to manipulate the amplitude, phase and polarization of an incident electromagnetic wave. The metasurfaces operating in the visible to near infrared spectral range rely on the modern fabrication technologies which offer a spatial resolution beyond the optical diffraction limit. Although direct laser writing is an alternative to the fabrication of nanostructures, the achievement of regular nanostructures with deep-subwavelength periods by using this method remains a big challenge. Here, we proposed and demonstrated a novel strategy for regulating disordered plasmonic nanoparticles into nanogratings with deep-subwavelength periods and reshaped nanoparticles by using femtosecond laser pulses. The orientations of the nanogratings depend strongly on the polarization of the femtosecond laser light. Such nanogratings exhibit reflection and polarization control over the reflected light, enabling the realization of polarization sensitive optical memory and color display with high spatial resolution and good chromacity.

Evaluation of melon drying using hyperspectral imaging technique in the near infrared region

LWT ◽  
2021 ◽  
Vol 143 ◽  
pp. 111092
Author(s):  
Jose Marcelino S. Netto ◽  
Fernanda A. Honorato ◽  
Patrícia M. Azoubel ◽  
Louise E. Kurozawa ◽  
Douglas F. Barbin
Keyword(s):  
Hyperspectral Imaging ◽  
Near Infrared ◽  
Imaging Technique ◽  
Infrared Region ◽  
Near Infrared Region
Sign in / Sign up

Export Citation Format

Share Document