Re-Writable Two-Photon Three Dimensional Optical Memory

2001 ◽  
Author(s):  
Paras N. Prasad
Keyword(s):  
Three Dimensional ◽  
Optical Memory ◽  
Two Photon

Two-photon energy transfer enhanced three-dimensional optical memory in quantum-dot and azo-dye doped polymers

2008 ◽  
Vol 92 (6) ◽  
pp. 063309 ◽  
Author(s):  
Xiangping Li ◽  
James W. M. Chon ◽  
Richard A. Evans ◽  
Min Gu
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Photon Energy ◽  
Azo Dye ◽  
Three Dimensional ◽  
Optical Memory ◽  
Two Photon ◽  
Doped Polymers

Data reading with the aid of one-photon and two-photon luminescence in three-dimensional optical memory devices based on photochromic materials

1998 ◽  
Vol 28 (6) ◽  
pp. 547-554 ◽  
Author(s):  
Denis A Akimov ◽  
Aleksei M Zheltikov ◽  
Nikolai I Koroteev ◽  
Sergey A Magnitskiy ◽  
A N Naumov ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Optical Memory ◽  
Memory Devices ◽  
Two Photon ◽  
Photochromic Materials ◽  
Data Reading

A Novel Fluorescent Photochromic Compound for Two-Photon Three-Dimensional Optical Memory Devices

1991 ◽  
Vol 20 (2) ◽  
pp. 257-260 ◽  
Author(s):  
Kenjy Itoh ◽  
Shigeo Tazuke ◽  
Masahiko Sisido
Keyword(s):  
Three Dimensional ◽  
Optical Memory ◽  
Memory Devices ◽  
Photochromic Compound ◽  
Two Photon

Recording by microexplosion and two-photon reading of three-dimensional optical memory in polymethylmethacrylate films

2000 ◽  
Vol 76 (8) ◽  
pp. 1000-1002 ◽  
Author(s):  
K. Yamasaki ◽  
S. Juodkazis ◽  
M. Watanabe ◽  
H.-B. Sun ◽  
S. Matsuo ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Optical Memory ◽  
Two Photon

scholarly journals High-speed volumetric two-photon fluorescence imaging of neurovascular dynamics

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiang Lan Fan ◽  
Jose A. Rivera ◽  
Wei Sun ◽  
John Peterson ◽  
Henry Haeberle ◽  
...  
Keyword(s):  
Blood Flow ◽  
High Speed ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanning Microscopy ◽  
Fluorescence Signal ◽  
Imaging Method ◽  
Spatiotemporal Resolution ◽  
Two Photon

AbstractUnderstanding the structure and function of vasculature in the brain requires us to monitor distributed hemodynamics at high spatial and temporal resolution in three-dimensional (3D) volumes in vivo. Currently, a volumetric vasculature imaging method with sub-capillary spatial resolution and blood flow-resolving speed is lacking. Here, using two-photon laser scanning microscopy (TPLSM) with an axially extended Bessel focus, we capture volumetric hemodynamics in the awake mouse brain at a spatiotemporal resolution sufficient for measuring capillary size and blood flow. With Bessel TPLSM, the fluorescence signal of a vessel becomes proportional to its size, which enables convenient intensity-based analysis of vessel dilation and constriction dynamics in large volumes. We observe entrainment of vasodilation and vasoconstriction with pupil diameter and measure 3D blood flow at 99 volumes/second. Demonstrating high-throughput monitoring of hemodynamics in the awake brain, we expect Bessel TPLSM to make broad impacts on neurovasculature research.

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