Site-selective fluorescence spectroscopy in dye-doped polymers. II. Determination of the weighted density of states of the vibrational modes

1993 ◽  
Vol 48 (12) ◽  
pp. 9066-9070 ◽  
Author(s):  
Yasuo Kanematsu ◽  
Jeung Sun Ahn ◽  
Takashi Kushida
Keyword(s):  
Fluorescence Spectroscopy ◽  
Density Of States ◽  
Vibrational Modes ◽  
Weighted Density ◽  
Doped Polymers ◽  
Site Selective

Determination of weighted density of states of vibrational modes in Zn-substituted myoglobin

1993 ◽  
Vol 215 (4) ◽  
pp. 336-340 ◽  
Author(s):  
Jeung Sun Ahn ◽  
Yasuo Kanematsu ◽  
Makoto Enomoto ◽  
Takashi Kushida
Keyword(s):  
Density Of States ◽  
Vibrational Modes ◽  
Weighted Density

Universal feature of weighted density of states of vibrational modes in dye-doped polymers

1995 ◽  
Vol 64 (1-6) ◽  
pp. 109-114 ◽  
Author(s):  
Yasuo Kanematsu ◽  
Makoto Enomoto ◽  
Yoshito Nishikawa ◽  
Takashi Kushida ◽  
Jeung Sun Ahn
Keyword(s):  
Density Of States ◽  
Vibrational Modes ◽  
Weighted Density ◽  
Universal Feature ◽  
Doped Polymers

scholarly journals Optical Characterization of Ultra-Thin Films of Azo-Dye-Doped Polymers Using Ellipsometry and Surface Plasmon Resonance Spectroscopy

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 41
Author(s):  
Najat Andam ◽  
Siham Refki ◽  
Hidekazu Ishitobi ◽  
Yasushi Inouye ◽  
Zouheir Sekkat
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Spectroscopic Ellipsometry ◽  
Plasmon Resonance ◽  
Complex Refractive Index ◽  
Resonance Spectroscopy ◽  
Doped Polymers

The determination of optical constants (i.e., real and imaginary parts of the complex refractive index (nc) and thickness (d)) of ultrathin films is often required in photonics. It may be done by using, for example, surface plasmon resonance (SPR) spectroscopy combined with either profilometry or atomic force microscopy (AFM). SPR yields the optical thickness (i.e., the product of nc and d) of the film, while profilometry and AFM yield its thickness, thereby allowing for the separate determination of nc and d. In this paper, we use SPR and profilometry to determine the complex refractive index of very thin (i.e., 58 nm) films of dye-doped polymers at different dye/polymer concentrations (a feature which constitutes the originality of this work), and we compare the SPR results with those obtained by using spectroscopic ellipsometry measurements performed on the same samples. To determine the optical properties of our film samples by ellipsometry, we used, for the theoretical fits to experimental data, Bruggeman’s effective medium model for the dye/polymer, assumed as a composite material, and the Lorentz model for dye absorption. We found an excellent agreement between the results obtained by SPR and ellipsometry, confirming that SPR is appropriate for measuring the optical properties of very thin coatings at a single light frequency, given that it is simpler in operation and data analysis than spectroscopic ellipsometry.

scholarly journals Fluorescence spectroscopy for the determination of reconstitution time of an in-vial lyophilised product

2021 ◽  
Vol 597 ◽  
pp. 120368
Author(s):  
Khaled ElKassas ◽  
Krishnakumar Chullipalliyalil ◽  
Michael McAuliffe ◽  
Sonja Vucen ◽  
Abina Crean
Keyword(s):  
Fluorescence Spectroscopy

Synchronous fluorescence spectroscopy for determination of tahini adulteration

Talanta ◽  
2017 ◽  
Vol 167 ◽  
pp. 557-562 ◽  
Author(s):  
Havva Tumay Temiz ◽  
Ugur Tamer ◽  
Aysel Berkkan ◽  
Ismail Hakki Boyaci
Keyword(s):  
Fluorescence Spectroscopy ◽  
Synchronous Fluorescence ◽  
Synchronous Fluorescence Spectroscopy
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