Infrared Properties of Thin Pt/Al2O3 Granular Metal-Insulator Composite Films

1988 ◽  
Vol 132 ◽  
Author(s):  
M. F. MacMillan ◽  
R. P. Devaty ◽  
J. V. Mantese
Keyword(s):  
Fourier Transform ◽  
Growth Model ◽  
Infrared Radiation ◽  
Optical Constants ◽  
Near Infrared ◽  
Volume Fraction ◽  
Composite Films ◽  
Fourier Transform Spectrometer ◽  
Near Infrared Radiation ◽  
Metal Insulator

ABSTRACTThe reflection of mid- and near-infrared radiation (400-15000 cm−1 by thin Pt/Al2O3 cermet films was measured using a Fourier transform spectrometer. The data were compared with predictions of three models for the effective optical constants of heterogeneous materials: Maxwell-Garnett, Bruggeman, and a simplified version of a probabilistic growth model due to Sheng. Sheng's model provides the best description of the data over the complete range of metallic volume fraction. This result is expected based on the most likely topology of the films and is in agreement with other work on similar systems at higher frequencies.

Detection of Terahertz, Mid- and Near Infrared Radiation by a Multilayer Metal—Insulator Heterostructure

JETP Letters ◽  
2020 ◽  
Vol 111 (7) ◽  
pp. 371-375 ◽  
Author(s):  
A. E. Schegolev ◽  
A. M. Popov ◽  
A. V. Bogatskaya ◽  
P. M. Nikiforova ◽  
M. V. Tereshonok ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Near Infrared ◽  
Near Infrared Radiation ◽  
Metal Insulator ◽  
Multilayer Metal

scholarly journals Hyperthermia by near infrared radiation induced immune cells activation and infiltration in breast tumor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wan Fatin Amira Wan Mohd Zawawi ◽  
M. H. Hibma ◽  
M. I. Salim ◽  
K. Jemon
Keyword(s):  
Breast Cancer ◽  
T Cells ◽  
Side Effects ◽  
Immune Cells ◽  
Infrared Radiation ◽  
Near Infrared ◽  
Tumor Regression ◽  
Immunohistochemical Analysis ◽  
Therapeutic Effects ◽  
Near Infrared Radiation

AbstractBreast cancer is the most common cancer that causes death in women. Conventional therapies, including surgery and chemotherapy, have different therapeutic effects and are commonly associated with risks and side effects. Near infrared radiation is a technique with few side effects that is used for local hyperthermia, typically as an adjuvant to other cancer therapies. The understanding of the use of near NIR as a monotherapy, and its effects on the immune cells activation and infiltration, are limited. In this study, we investigate the effects of HT treatment using NIR on tumor regression and on the immune cells and molecules in breast tumors. Results from this study demonstrated that local HT by NIR at 43 °C reduced tumor progression and significantly increased the median survival of tumor-bearing mice. Immunohistochemical analysis revealed a significant reduction in cells proliferation in treated tumor, which was accompanied by an abundance of heat shock protein 70 (Hsp70). Increased numbers of activated dendritic cells were observed in the draining lymph nodes of the mice, along with infiltration of T cells, NK cells and B cells into the tumor. In contrast, tumor-infiltrated regulatory T cells were largely diminished from the tumor. In addition, higher IFN-γ and IL-2 secretion was observed in tumor of treated mice. Overall, results from this present study extends the understanding of using local HT by NIR to stimulate a favourable immune response against breast cancer.

scholarly journals Preparation of Y-Ba-Cu-O thin films by laser evaporation with near-infrared radiation

1989 ◽  
Vol 22 (2) ◽  
pp. 323-326 ◽  
Author(s):  
H Lengfellner ◽  
K F Renk ◽  
P Fickenscher ◽  
W Schindler
Keyword(s):  
Thin Films ◽  
Infrared Radiation ◽  
Near Infrared ◽  
Laser Evaporation ◽  
Near Infrared Radiation

scholarly journals 634 Involvement of near-infrared radiation in sebaceous hyperplasia in the skin of hamsters

2017 ◽  
Vol 137 (10) ◽  
pp. S301
Author(s):  
S. Ojima ◽  
N. Akimoto ◽  
S. Tanaka ◽  
M. Minemura ◽  
T. Suto ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Near Infrared ◽  
Near Infrared Radiation
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