Smart YPO4:Er–Yb Nanophosphor for Optical Heating, Hyperthermia, Security Ink, Cancer Endoradiotherapy, and Uranyl Recovery

Author(s):  
Abhishek Kumar Soni ◽  
Kartikey Kumar Yadav ◽  
Bheeshma Pratap Singh ◽  
Rashmi Joshi ◽  
Sudipta Chakraborty ◽  
...  
Keyword(s):  
1994 ◽  
Vol 342 ◽  
Author(s):  
I. BÁrsony ◽  
J.G.E. Klappe ◽  
É. Vázsonyi ◽  
T. Lohner ◽  
M. Fried

ABSTRACTChemical and mechanical stability of porous silicon layers (PSL) is the prerequisite of any active (luminescent) or passive (e.g. porous substrate) integrated applications. In this work X-ray diffraction (XRD) was used to analyze quantitatively the strain distribution obtained in different morphology PSL that were prepared on (100) p and p+Si substrates. Tetragonal lattice constant distortion can be as high as 1.4% in highly porous “as-prepared” samples. Incoherent optical heating RTO is governed by the absorption in the oxidized specimen. PSL show vertical inhomogeneity according to interpretation of spectroscopic ellipsometry (SE) data. Oxygen incorporation during RTO is controlled by specific surface (in p+ proportional, in p inversely proportional with porosity), while the developing compressive stress depends on pore size, and decreases with porosity in both morphologies.


2020 ◽  
Vol 6 (8) ◽  
pp. eaax8256 ◽  
Author(s):  
Jinyong Ma ◽  
Jiayi Qin ◽  
Geoff T. Campbell ◽  
Ruvi Lecamwasam ◽  
Kabilan Sripathy ◽  
...  

Induced transparency is a common but remarkable effect in optics. It occurs when a strong driving field is used to render an otherwise opaque material transparent. The effect is known as electromagnetically induced transparency in atomic media and optomechanically induced transparency in systems that consist of coupled optical and mechanical resonators. In this work, we introduce the concept of photothermally induced transparency (PTIT). It happens when an optical resonator exhibits nonlinear behavior due to optical heating of the resonator or its mirrors. Similar to the established mechanisms for induced transparency, PTIT can suppress the coupling between an optical resonator and a traveling optical field. We further show that the dispersion of the resonator can be modified to exhibit slow or fast light. Because of the relatively slow thermal response, we observe the bandwidth of the PTIT to be 2π × 15.9 Hz, which theoretically suggests a group velocity of as low as 5 m/s.


Author(s):  
G. P. Zograf ◽  
M. I. Petrov ◽  
D. A. Zuev ◽  
V. A. Milichko ◽  
S. V. Makarov

2009 ◽  
Vol 11 (5) ◽  
pp. 053001 ◽  
Author(s):  
Andreas Kurcz ◽  
Antonio Capolupo ◽  
Almut Beige

2009 ◽  
Author(s):  
Andreas Kurcz ◽  
Antonio Capolupo ◽  
Almut Beige ◽  
James R. Danielson ◽  
Thomas Sunn Pedersen

2015 ◽  
Vol 3 (28) ◽  
pp. 7379-7385 ◽  
Author(s):  
Hao Suo ◽  
Chongfeng Guo ◽  
Zheng Yang ◽  
Shaoshuai Zhou ◽  
Changkui Duan ◽  
...  

An optical temperature sensor and optical heater based on Yb3+/Tm3+ co-doped Ba5Gd8Zn4O21 phosphors.


2021 ◽  
Vol 46 (1) ◽  
pp. 1411-1419
Author(s):  
Zhuang Ye ◽  
Zhi Li ◽  
Jixiang Dai ◽  
Yuhuan Qin ◽  
Gaopeng Wang ◽  
...  

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