title: Bacterial cells enhance laser driven ion acceleration.
abstract: Intense laser produced plasmas generate hot electrons which in turn leads to ion acceleration. Ability to generate faster ions or hotter electrons using the same laser parameters is one of the main outstanding paradigms in the intense laser-plasma physics. Here, we present a simple, albeit, unconventional target that succeeds in generating 700 keV carbon ions where conventional targets for the same laser parameters generate at most 40 keV. A few layers of micron sized bacteria coating on a polished surface increases the laser energy coupling and generates a hotter plasma which is more effective for the ion acceleration compared to the conventional polished targets. Particle-in-cell simulations show that micro-particle coated target are much more effective in ion acceleration as seen in the experiment. We envisage that the accelerated, high-energy carbon ions can be used as a source for multiple applications.
authors.affiliation: Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Colaba, Mumbai 400 005, India.
authors.forename: Malay
authors.initials: M
authors.lastname: Dalui
authors.affiliation: Institute for Plasma Research, Bhat, Gandhinagar 382 428, India.
authors.forename: M
authors.initials: M
authors.lastname: Kundu
authors.affiliation: Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Colaba, Mumbai 400 005, India.
authors.forename: T Madhu
authors.initials: TM
authors.lastname: Trivikram
authors.affiliation: Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Colaba, Mumbai 400 005, India.
authors.forename: R
authors.initials: R
authors.lastname: Rajeev
authors.affiliation: Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Colaba, Mumbai 400 005, India.
authors.forename: Krishanu
authors.initials: K
authors.lastname: Ray
authors.affiliation: 1] Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Colaba, Mumbai 400 005, India [2] TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500075, India.
authors.forename: M
authors.initials: M
authors.lastname: Krishnamurthy
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D002244:Carbon / Q000737:chemistry / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism; D057446:Hydrodynamics; D007477:Ions / Q000737:chemistry; D007834:Lasers; D011522:Protons
chemical_list: D007477:Ions; D011522:Protons; D002244:Carbon
references.citation: Phys Rev Lett. 2003 Mar 21;90(11):115002
references.pmid: 12688936
references.citation: Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Nov;62(5 Pt B):7271-81
references.pmid: 11102086
references.citation: Opt Express. 2012 Feb 27;20(5):5754-61
references.pmid: 22418381
references.citation: Phys Rev Lett. 2000 Jan 24;84(4):670-3
references.pmid: 11017343
references.citation: Phys Rev Lett. 2000 May 1;84(18):4108-11
references.pmid: 10990622
references.citation: Phys Rev Lett. 2012 Dec 7;109(23):234801
references.pmid: 23368211
references.citation: Phys Rev Lett. 2001 Jan 15;86(3):436-9
references.pmid: 11177849
references.citation: Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Feb;69(2 Pt 2):026411
references.pmid: 14995570
references.citation: Phys Rev Lett. 2006 Jun 23;96(24):245002
references.pmid: 16907250
references.citation: Med Phys. 2004 Jun;31(6):1587-92
references.pmid: 15259663
references.citation: Phys Rev Lett. 2000 Oct 2;85(14):2945-8
references.pmid: 11005974
references.citation: Phys Rev Lett. 2011 Apr 1;106(13):134801
references.pmid: 21517389
references.citation: Phys Rev Lett. 2000 May 29;84(22):5149-52
references.pmid: 10990889
references.citation: Phys Rev Lett. 2003 May 9;90(18):185002
references.pmid: 12786012
references.citation: Phys Rev Lett. 2013 May 24;110(21):215004
references.pmid: 23745890
references.citation: Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Nov;72(5 Pt 2):056401
references.pmid: 16383760