Picosecond Fluorescence In Spinach Chloroplasts

Douglas Magde; Sylvia J. Berens; Warren L. Butler

doi:10.1117/12.933210

23 April 1982 Picosecond Fluorescence In Spinach Chloroplasts

Douglas Magde, Sylvia J. Berens, Warren L. Butler

Author Affiliations +

Proceedings Volume 0322, Picosecond Lasers and Applications; (1982) https://doi.org/10.1117/12.933210
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

Fluorescence decay measurements using a mode-locked argon laser and single photon time-correlated detection, help us understand energy migration in photosynthesis. For intact spinach chloroplasts we find multiple exponential decays. There is some hint of a very fast component (<100 ps), but our data reveal little about it. We would expect this to be due to "photosystem I units." In addition we find two components at longer times, both of which lengthen as conditions are changed from "open" reaction centers (0.1 and 0.7 ns) to "closed" reac-tion centers (1 and 2 ns). This may reflect two kinds of organization for "photosystem II units."

Citation Download Citation

Douglas Magde, Sylvia J. Berens, and Warren L. Butler "Picosecond Fluorescence In Spinach Chloroplasts", Proc. SPIE 0322, Picosecond Lasers and Applications, (23 April 1982); https://doi.org/10.1117/12.933210

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE