Mass selection in laser-plasma ion accelerator on nanostructured surfaces
(2017) In Physics of Plasmas 24(1).- Abstract
When an intense laser pulse interacts with a solid surface, ions get accelerated in the laser-plasma due to the formation of transient longitudinal electric field along the target normal direction. However, the acceleration is not mass-selective. The possibility of manipulating such ion acceleration scheme to enhance the energy of one ionic species (either proton or carbon) selectively over the other species is investigated experimentally using nanopore targets. For an incident laser intensity of approximately 5×1017 W/cm2, we show that the acceleration is optimal for protons when the pore diameter is about 15-20 nm, while carbon ions are optimally accelerated when the pore diameter is close to 40-50 nm. The observed effect... (More)
When an intense laser pulse interacts with a solid surface, ions get accelerated in the laser-plasma due to the formation of transient longitudinal electric field along the target normal direction. However, the acceleration is not mass-selective. The possibility of manipulating such ion acceleration scheme to enhance the energy of one ionic species (either proton or carbon) selectively over the other species is investigated experimentally using nanopore targets. For an incident laser intensity of approximately 5×1017 W/cm2, we show that the acceleration is optimal for protons when the pore diameter is about 15-20 nm, while carbon ions are optimally accelerated when the pore diameter is close to 40-50 nm. The observed effect is due to tailoring targetry by the pulse pedestal of the laser prior to the arrival of the main pulse.
(Less)
- author
- Dalui, Malay LU ; Kundu, Mondira ; Sarkar, Subhrangsu ; Tata, Sheroy ; Pasley, John ; Ayyub, P. and Krishnamurthy, Malathi
- organization
- publishing date
- 2017-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics of Plasmas
- volume
- 24
- issue
- 1
- article number
- 010703
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000395395100003
- scopus:85009737806
- ISSN
- 1070-664X
- DOI
- 10.1063/1.4973887
- language
- English
- LU publication?
- yes
- id
- eb77c6ff-3275-4283-8cf3-b8b5482c5a10
- date added to LUP
- 2017-02-27 08:26:25
- date last changed
- 2024-03-17 09:21:36
@article{eb77c6ff-3275-4283-8cf3-b8b5482c5a10,
abstract = {{<p>When an intense laser pulse interacts with a solid surface, ions get accelerated in the laser-plasma due to the formation of transient longitudinal electric field along the target normal direction. However, the acceleration is not mass-selective. The possibility of manipulating such ion acceleration scheme to enhance the energy of one ionic species (either proton or carbon) selectively over the other species is investigated experimentally using nanopore targets. For an incident laser intensity of approximately 5×1017 W/cm<sup>2</sup>, we show that the acceleration is optimal for protons when the pore diameter is about 15-20 nm, while carbon ions are optimally accelerated when the pore diameter is close to 40-50 nm. The observed effect is due to tailoring targetry by the pulse pedestal of the laser prior to the arrival of the main pulse.</p>}},
author = {{Dalui, Malay and Kundu, Mondira and Sarkar, Subhrangsu and Tata, Sheroy and Pasley, John and Ayyub, P. and Krishnamurthy, Malathi}},
issn = {{1070-664X}},
language = {{eng}},
month = {{01}},
number = {{1}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Physics of Plasmas}},
title = {{Mass selection in laser-plasma ion accelerator on nanostructured surfaces}},
url = {{http://dx.doi.org/10.1063/1.4973887}},
doi = {{10.1063/1.4973887}},
volume = {{24}},
year = {{2017}},
}