scholarly journals Time-resolved reflectance measurements on layered tissues with strongly varying optical properties

1995 ◽  
Author(s):  
Andreas H. Hielscher ◽  
Hanli Liu ◽  
Lihong V. Wang ◽  
Frank K. Tittel ◽  
Britton Chance ◽  
...  
Keyword(s):  
Optical Properties ◽  
Time Resolved ◽  
Reflectance Measurements

Phantom validation and in vivo application of an inversion procedure for retrieving the optical properties of diffusive layered media from time-resolved reflectance measurements

2004 ◽  
Vol 29 (17) ◽  
pp. 2037 ◽  
Author(s):  
Fabrizio Martelli ◽  
Samuele Del Bianco ◽  
Giovanni Zaccanti ◽  
Antonio Pifferi ◽  
Alessandro Torricelli ◽  
...  
Keyword(s):  
Optical Properties ◽  
Layered Media ◽  
Time Resolved ◽  
Inversion Procedure ◽  
Reflectance Measurements ◽  
Phantom Validation

Determination of the optical properties of multilayered phantoms by time-resolved reflectance measurements

2015 ◽  
Author(s):  
H. García ◽  
D. Iriarte ◽  
J. Pomarico ◽  
D. Grosenick ◽  
R. Macdonald
Keyword(s):  
Optical Properties ◽  
Time Resolved ◽  
Reflectance Measurements

The Potential Of Time-Resolved Reflectance Measurements For The Noninvasive Determination Of Tissue Optical Properties

1989 ◽  
Author(s):  
Brian Wilson ◽  
Young Park ◽  
Yaron Hefetz ◽  
Michael Patterson ◽  
Steen Madsen ◽  
...  
Keyword(s):  
Optical Properties ◽  
Time Resolved ◽  
Tissue Optical Properties ◽  
Reflectance Measurements

scholarly journals Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 115
Author(s):  
Zeinab Ebrahimpour ◽  
Humberto Cabrera ◽  
Fahimeh Ahmadi ◽  
Asghar Asgari ◽  
Joseph Niemela
Keyword(s):  
Optical Properties ◽  
Tio2 Nanoparticles ◽  
Refractive Index Change ◽  
Optical Path Length ◽  
Beam Deflection ◽  
Time Resolved ◽  
Tio2 Nps ◽  
Amorphous Glass ◽  
Laser Media ◽  
Materials Used

In this work, time-resolved thermal lens and beam deflection methods were applied to determine the thermo-optical properties of Er3+ doped sulfophosphate glass in which different concentrations of Titanium dioxide (TiO2) nanoparticles (NPs) were embedded. Thermal diffusivity (D), thermal conductivity (κ), and the temperature coefficient of the optical path length (ds/dT) were determined as a function of NPs concentrations. Moreover, the growth of TiO2 NPs inside the amorphous glass matrix was evidenced by Transmission Electron Microscopy (TEM) images as well as through optical effects such as refractive index change of the glass. The outcomes indicated relatively high values for D and κ as well as a low ds/dT as required for most optical components used for laser media. The addition of TiO2 NPs with concentration of dopants up to 0.6 mol% improved the optical properties of the glass samples but did not affect its thermal properties. The results indicate that the enhanced optical and thermal performance of the proposed co-doped glass fits the quality standards for materials used in photonic devices.

Optical Properties of (Pb,Eu)Te Thin Films and Superlattices

1986 ◽  
Vol 89 ◽  
Author(s):  
W. C. Goltsos ◽  
A. V. Nurmikko ◽  
D. L. Partin
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Exchange ◽  
Optical Measurements ◽  
Optical Gap ◽  
Exchange Processes ◽  
Reflectance Measurements

AbstractPhotoluminescence, transmission, and reflectance measurements have yielded information about the states defining an optical gap in thin films and superlattices based on the (Pb,Eu)Te system, including the limit of high Eu concentration. Magneto-optical measurements show the presence of finite spin exchange processes at low Eu-concentrations.

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