First hyperpolarizability of bacteriorhodopsin, retinal and related molecules revisited


Autoria(s): Ghosh, Sampa; Ranjini, Arumugam Sri; Pandey, Ravindra; Das, Puspendu Kumar
Data(s)

01/06/2009

Resumo

The previously reported beta values of BR and retinal based chromophores were very high but subsequent measurements found them to be much less. We have found that the beta values of these compounds do not vary so much with experimental conditions as with the method of analysis. Hyper-Rayleigh scattering measurements at 1543 and 1907 nm produce more realistic beta values close to the intrinsic (static) hyperpolarizability, beta(0) which for BR is still very high (275 x 10 (30) esu). The optical nonlinearity of BR arises entirely due to the protonated retinal Schiff Base (PRSB) which in its isolated form has the same intrinsic hyperpolarizability as that of the rotein.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/20850/1/11full_text.pdf

Ghosh, Sampa and Ranjini, Arumugam Sri and Pandey, Ravindra and Das, Puspendu Kumar (2009) First hyperpolarizability of bacteriorhodopsin, retinal and related molecules revisited. In: Chemical Physics Letters, 474 (4-6). pp. 307-310.

Publicador

Elsevier science

Relação

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFN-4W6XYJB-5&_user=512776&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=eec7f2f8d8b55e881ced7d35ce40180c

http://eprints.iisc.ernet.in/20850/

Palavras-Chave #Inorganic & Physical Chemistry
Tipo

Journal Article

PeerReviewed