Vol 25 No 1

On the occasion of the 25^th Anniversary Year of the Asian Journal of Physics, I like to congratulate the founder and chief-editor of this journal, Professor Vinod K. Rastogi and his editorial team, for a great and tireless job he/theyperformed over so many years to bring this journal to a high standard. I still remember the year 1991, when Vinod asked me to contribute with a paper to the first issue of his newly founded journal, which then appeared in 1992. Mathias Ganz, one of my former PhD students, had just finished work on electronic Raman scattering from isotopically pure bromine (⁷⁹Br and ⁸¹Br) atomsand we had been proud to resolve the hyperfine structure in the electronic Raman spectrum of these halogen atoms. We were happy to submit this work to this new journal and Vinod had been so kind to place it on page one of the first issue. We are pleasedseeing this paper reprinted again in the Anniversary Issue.

It gives me great pleasure to see how the journal has meanwhile grown in quantity as well as in quality covering a broad range of physical aspects. The editor-in-chief strengthened the journal by publishing so many Special Issues, each organized by well-known international scientists. I am sure that the journal will keep the standard or even further develop. In this sense, I wish most success for this journal.

Würzburg, 2015-11-09 Wolfgang Kiefer

Wolfgang Kiefer studied physics at LM-University of Munich. After his PhD in Physics he joined for two years the Chemistry Division of the National Research Council in Ottawa, Canada, for postdoctoral work and then returned to LMU Munich where he finished his habilitation in 1977. Shortly afterwardshe became Professor of Physics at the newly founded University of Bayreuth, Germany, where he stayed until 1985. From 1985 to 1988 he was Full Professor for Physics and Head of Institute for Experimental Physics at Karl-Franzens University of Graz, Austria. He finally accepted a chair in Physical Chemistry at University of Würzburg in 1988 where he stayed until his retirement in 2006. He was and still is member of several scientific journals,and he was Editor-in-Chief of the Journal of Raman Spectroscopy from 2000 to 2009. His research interests are mainly concerned with several aspects of Raman spectroscopy ranging from the development of new techniques, theories for resonance Raman spectroscopy, density functional theory, Raman/Mie scattering, non-linear Raman spectroscopies to surface enhanced Raman scattering. He has published

more than 850 papers, among them 630 peer reviewed articles, 49 book articles, and he is co-author of 5 books. He was Visiting and is Honorary Professor of several international Universities and he received an honorary doctoral degree from Babes-Bolyai-University Cluj-Napoca, Romania. He also received several international awards, among them the prestigious Pittsburgh Spectroscopy Award and the first Raman Lifetime Award provided by the International Conferences on Raman Spectroscopy. He is member and Honorary Member of many scientific Societies. After his retirement he set-up at his home his own Raman spectroscopy laboratory named Eisingen Laboratory for Applied Raman Spectroscopy(ELARS).

Asian Journal of Physics Vol. 25 No 1 (2016) 121-126

Two dimensional graphene derivatives supported isolated gold nanoparticles as an effcient SERS substrate

Shiju Abraham^a,b, Matthias König^b, Shobhit Pandey^c, Sunil K Srivastava^d,Bernd Walkenfort^b and Anchal Srivastava^a

^aDepartment of Physics, Banaras Hindu University, Varanasi-221 005, India

^bFaculty of Chemistry, University of Duisburg, 45141 Essen, Germany

^cMetallurgical Engineering Department, Indian Institute of Technology – (BHU), Varanasi-221 005

^dDepartment of Pure and Applied Physics, Guru Ghasidas University, Bilaspur- 495 009, India

(Dedicated to Professor Wolfgang Kiefer on the occasion of his 75th birthday)

ASIAN JOURNAL OF PHYSICS