Observation of weak localization of light in gold nanofluids synthesized using the marine derived fungus Aspergillus niger

被引：1

作者：

Dave, Vishakha ^{[1
]}

Vala, Anjana K. ^{[2
]}

Patel, Rajesh ^{[1
]}

机构：

[1] Maharaja Krishnakumarsinhji Bhavnagar Univ, Dept Phys, Bhavnagar 364002, Gujarat, India

[2] Maharaja Krishnakumarsinhji Bhavnagar Univ, Dept Lifesci, Bhavnagar 364002, Gujarat, India

来源：

RSC ADVANCES | 2015年 / 5卷 / 22期

关键词：

COHERENT BACKSCATTERING; DISORDERED MEDIA; NANOPARTICLES; SCATTERING; CRYSTALS;

D O I：

10.1039/c4ra13292k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have observed weak localization of light for the first time in gold nanofluids synthesized using the marine derived fungus Aspergillus niger. Coherent backscattering of waves by a disordered scattering medium is responsible for weak localization of light. We have directly observed this effect using polarized visible light and for different sized gold nanoparticles in nanofluids. The localization parameter kl* obtained from the observation is 1 < kl* < 5, which is the precondition for the weak localization of light. The kl* is controlled by the size and concentration of the particles in the nanofluids. Quadratic scaling is used to study the localization transition. The localization length obtained is nearly 225 nm. Gold nanoparticles have potential applications in biomedicine, imaging, catalysis and photonics.

引用

页码：16780 / 16784

页数：5

共 32 条

[1] COHERENT BACKSCATTERING OF LIGHT BY DISORDERED MEDIA - ANALYSIS OF THE PEAK LINE-SHAPE [J].

AKKERMANS, E ;

WOLF, PE ;

MAYNARD, R .

PHYSICAL REVIEW LETTERS, 1986, 56 (14) :1471-1474

[2] Coherent light transport in a cold strontium cloud [J].

Bidel, Y ;

Klappauf, B ;

Bernard, JC ;

Delande, D ;

Labeyrie, G ;

Miniatura, C ;

Wilkowski, D ;

Kaiser, R .

PHYSICAL REVIEW LETTERS, 2002, 88 (20) :2039021-2039024

[3] Broadband and broadangle SPP antennas based on plasmonic crystals with linear chirp [J].

Bouillard, J. -S ;

Vilain, S. ;

Dickson, W. ;

Wurtz, G. A. ;

Zayats, A. V. .

SCIENTIFIC REPORTS, 2012, 2

[4]

Burresi M., 2012, PHYS REV LETT, V108

[5] Biomineralization Mechanism of Gold by Zygomycete Fungi Rhizopous oryzae [J].

Das, Sujoy K. ;

Liang, Jinni ;

Schmidt, Michael ;

Laffir, Fathima ;

Marsili, Enrico .

ACS NANO, 2012, 6 (07) :6165-6173

[6] Weak localization of light in a disordered microcavity [J].

Gurioli, M ;

Bogani, F ;

Cavigli, L ;

Gibbs, H ;

Khitrova, G ;

Wiersma, DS .

PHYSICAL REVIEW LETTERS, 2005, 94 (18) :1-4

[7] Quantum-dot-tagged microbeads for multiplexed optical coding of biomolecules [J].

Han, MY ;

Gao, XH ;

Su, JZ ;

Nie, S .

NATURE BIOTECHNOLOGY, 2001, 19 (07) :631-635

[8] Nanoparticles Heat through Light Localization [J].

Hogan, Nathaniel J. ;

Urban, Alexander S. ;

Ayala-Orozco, Ciceron ;

Pimpinelli, Alberto ;

Nordlander, Peter ;

Halas, Naomi J. .

NANO LETTERS, 2014, 14 (08) :4640-4645

[9] Anomalous coherent backscattering of light from opal photonic crystals [J].

Huang, J ;

Eradat, N ;

Raikh, ME ;

Vardeny, ZV ;

Zakhidov, AA ;

Baughman, RH .

PHYSICAL REVIEW LETTERS, 2001, 86 (21) :4815-4818

[10] Green Synthesis of Silver Nanoparticles Using Pinus eldarica Bark Extract [J].

Iravani, Siavash ;

Zolfaghari, Behzad .

BIOMED RESEARCH INTERNATIONAL, 2013, 2013

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