Two-photon-induced excited-state absorption in high-index fibers

2004 ◽  
Author(s):  
William M. Shensky III ◽  
Ion Cohanoschi ◽  
Armen Sevian ◽  
David J. Hagan ◽  
Eric W. Van Stryland
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
High Index ◽  
Two Photon

Two-photon-assisted excited state absorption in nanocomposite films of PbS stabilized in a synthetic glue matrix

2007 ◽  
Vol 18 (7) ◽  
pp. 075708 ◽  
Author(s):  
Pushpa Ann Kurian ◽  
C Vijayan ◽  
C S Suchand Sandeep ◽  
Reji Philip ◽  
K Sathiyamoorthy
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Nanocomposite Films ◽  
Two Photon

Excited-state absorption and two-photon-induced fluorescence of novel organic dyes

2003 ◽  
Author(s):  
Wenfang Sun ◽  
Dmitri V. Martyshkin ◽  
Sergey B. Mirov ◽  
Xin-Jing Tang ◽  
Li-Zhu Wu ◽  
...  
Keyword(s):  
Excited State ◽  
Organic Dyes ◽  
Excited State Absorption ◽  
Two Photon

Nondegenerate two-photon and excited state absorption spectroscopy of organics

2003 ◽  
Author(s):  
Eric Van Stryland ◽  
Joel Hales ◽  
Rich Lepkowicz ◽  
David Hagan ◽  
Jean-Luc Bredas
Keyword(s):  
Excited State ◽  
Absorption Spectroscopy ◽  
Excited State Absorption ◽  
Two Photon

Extending the Bandwidth of Reverse Saturable Absorption in Platinum Complexes Using Two-Photon-Initiated Excited-State Absorption

2013 ◽  
Vol 5 (3) ◽  
pp. 565-572 ◽  
Author(s):  
Bingguang Zhang ◽  
Yunjing Li ◽  
Rui Liu ◽  
Timothy M. Pritchett ◽  
Joy E. Haley ◽  
...  
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Platinum Complexes ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Two Photon

Photophysics of organic materials exhibiting strong two-photon and excited state absorption

2004 ◽  
Author(s):  
Richard L. Sutherland ◽  
Mark C. Brant ◽  
Daniel G. McLean ◽  
Joy E. Rogers ◽  
Bala Sankaran ◽  
...  
Keyword(s):  
Excited State ◽  
Organic Materials ◽  
Excited State Absorption ◽  
Two Photon

Single State Absorption Spectra of Novel Nonlinear Optical Materials

1999 ◽  
Vol 597 ◽  
Author(s):  
Sean M. Kirkpatrick ◽  
Casey Clark ◽  
Richard L. Sutherland
Keyword(s):  
Excited State ◽  
Cross Section ◽  
Transient Absorption ◽  
Short Pulse ◽  
Measurement Techniques ◽  
Excited State Absorption ◽  
Leading Edge ◽  
Photon Absorption ◽  
Two Photon ◽  
Pulse Pump

AbstractDuring the absorption of a laser pulse of moderate length, the leading edge can experience excited state absorption out of the first singlet state. The measurement of this excited state absorption spectrum can only be accurately probed using short pulse pump-probe techniques. Specifically, we examine the excited state absorption of AF-380 in THF using ultrafast transient white light absorption spectroscopy (TWLA). This material has been the focus of several investigations due to it's purported large two-photon absorption cross-section, the discrepancies between long and short pulse measurements, and it's use in holographic twophoton induced photopolymerization. It is believed that a substantial excited state absorbance can account for the difference in two-photon cross section measurements. It is also possible that this excited state exhibits coherence for time scales that can affect further absorption of longer pump pulses. We examine the transient absorption of this species, as well as polarization and free carrier effects and discuss the possible implications with regards to measurement techniques.

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