A perturbation approach for optical characterization of absorptive inclusions in diffusing media by time-resolved contrast measurements

2005 ◽  
Author(s):  
R. Esposito ◽  
S. De Nicola ◽  
M. Lepore ◽  
I. Delfino ◽  
P. L. Indovina
Keyword(s):  
Optical Characterization ◽  
Perturbation Approach ◽  
Time Resolved

scholarly journals Synthesis and Optical Characterization of Carbon Dot from Peels of Dragon Fruit and Pear

2018 ◽  
Vol 4 (1) ◽  
pp. 19 ◽  
Author(s):  
Selvy Uftovia Hepriyadi ◽  
. Isnaeni
Keyword(s):  
Carbon Dots ◽  
Optical Characterization ◽  
Heating Time ◽  
Emission Wavelength ◽  
Time Resolved ◽  
Carbon Dot ◽  
Infrared Wavelength ◽  
Dragon Fruit ◽  
Time Changes

Fluorescence materials such as carbon dots are unique and non-toxic materials that can be produced using many methods. In this research, synthesis and optical characterization of carbon dots from the peels of dragon fruit and pear have been done. The synthesis uses bottom-up method using microwave with 20 minutes, 40 minutes, and 80 minutes of heating time. The result of optical characterizations showed that the samples that have been heat treated are carbon dots based of the absorbance in the range of 280-350 nm, and the intensity are decreased in the range of visible and infrared wavelength. There are emission and intensity changes by different heat treatments. From the samples of dragon fruit's peels, the emission wavelength tended to shift toward visible light at the wavelength of 551.51 nm, 507.98 nm and 487.28 nm with the excitation at the wavelength of 420 nm from pulsed pico-laser. While, the emission wavelength from the samples of pears peels were fluctuate in wavelength of 529.09 nm, 507.52 nm and 519.46 nm. Similarly, the time-resolved photoluminescence characterization test showed that there were time changes in each sample of carbon dot. The decay lifetime of carbon dots was fluctuated between 4.5 ns - 5.4 ns for dragon fruit’s peels and about 1.9 ns - 2.4 ns for pear's peels.

In vivo time-resolved multi-distance spectroscopy of human forehead: a step towards optical characterization of brain tissue

2006 ◽  
Author(s):  
D. Comelli ◽  
A. Pifferi ◽  
P. Taroni ◽  
A. Torricelli ◽  
R. Cubeddu ◽  
...  
Keyword(s):  
Brain Tissue ◽  
Optical Characterization ◽  
Time Resolved

scholarly journals Time-resolved optical characterization of proximized nano-bilayers for ultrafast photodetector applications

2008 ◽  
Vol 97 ◽  
pp. 012317 ◽  
Author(s):  
L Parlato ◽  
G P Pepe ◽  
D Pan ◽  
C De Lisio ◽  
V Pagliarulo ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Time Resolved

scholarly journals Multidistance optical characterization of the female breast by time-resolved diffuse spectroscopy

2003 ◽  
Author(s):  
Antonio Pifferi ◽  
Johannes Swartling ◽  
Eleonora Giambattistelli ◽  
Ekaterine Chikoidze ◽  
Alessandro Torricelli ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Time Resolved ◽  
Female Breast

scholarly journals Time-resolved diffused optical characterization of key tissue constituents of human bony prominence locations

2015 ◽  
Author(s):  
Sanathana Konugolu Venkata Sekar ◽  
Andrea Farina ◽  
Edoardo Martinenghi ◽  
Alberto Dalla Mora ◽  
Paola Taroni ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Time Resolved ◽  
Bony Prominence ◽  
Human Bony

scholarly journals Time-resolved diffused optical characterization of key tissue constituents of human bony prominence locations

2015 ◽  
Author(s):  
Sanathana Konugolu Venkata Sekar ◽  
Andrea Farina ◽  
Edoardo Martinenghi ◽  
Alberto Dalla Mora ◽  
Paola Taroni ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Time Resolved ◽  
Bony Prominence ◽  
Human Bony
Sign in / Sign up

Export Citation Format

Share Document