Share Email Print
cover

Proceedings Paper

Photon absorption in step-wise multi-photon activation fluorescence (SMPAF) of Sepia melanin
Author(s): Zhenhua Lai; Josef Kerimo; Charles DiMarzio
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Previous research has shown that melanin goes through a step-wise three-photon absorption process when the fluorescence is activated with high laser intensity. We have conducted further research using even higher laser intensity for the activation, and have shown the possibility of observing power dependence other than third-order. This article discusses the possible energy states of Sepia melanin by studying the power dependence curves of the step-wise multi-photon activated fluorescence signal. Three different excitation channels are activated. Possible reasons causing the three channels are discussed.

Paper Details

Date Published: 22 February 2013
PDF: 6 pages
Proc. SPIE 8588, Multiphoton Microscopy in the Biomedical Sciences XIII, 85881I (22 February 2013); doi: 10.1117/12.2001384
Show Author Affiliations
Zhenhua Lai, Northeastern Univ. (United States)
Bernard M. Gordon Ctr. for Subsurface Sensing and Imaging System (United States)
Josef Kerimo, Northeastern Univ. (United States)
Bernard M. Gordon Ctr. for Subsurface Sensing and Imaging System (United States)
Charles DiMarzio, Northeastern Univ. (United States)
Bernard M. Gordon Ctr. for Subsurface Sensing and Imaging System (United States)


Published in SPIE Proceedings Vol. 8588:
Multiphoton Microscopy in the Biomedical Sciences XIII
Ammasi Periasamy; Karsten König; Peter T. C. So, Editor(s)

© SPIE. Terms of Use
Back to Top