Two-photon-excited fluorescence
Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy
... single photon level [5, ...for two-photon absorption (TPA) [7, 8] or two-photon excited fluorescence (TPEF) utilizing a heralded two-photon source is ...
16
Single and two photon fluorescence studies of ordered molecular systems
... for two photon absorption appears to be consistently larger than in single photon excitation and the reverse is seen in 6CB above ...procedure. Two photon excitation at 800nm is ...
234
Single Cell Assay for Molecular Diagnostics and Medicine: Monitoring Intracellular Concentrations of Macromolecules by Two-photon Fluorescence Lifetime Imaging
... using two-photon excited fluorescence lifetime imaging ...the fluorescence lifetime of fluorophore and the refractive index of its microen- vironment varying due to changes in the ...
12
Single and two photon time resolved polarised fluorescence studies of probe molecule dynamics in nematic liquid crystals
... single photon counting system used in these studies has been described in detail elsewhere 8, 22 ...Single photon excitation of rhodamine 6G at 575nm was undertaken using the 7ps output of a cavity dumped ...
11
Polarised stimulated emission depletion studies of two-photon excited states
... of excited states has proved to be both a valuable tool in high resolution molecular spectroscopy 1 , in time resolved spectroscopy as a means of orientational photoselection 2 and in the study of ultrafast ...
11
A surface plasmon enhanced FLIM-FRET imaging approach based on Au nanoparticles
... be fluorescence from GFP, no strong fluorescence signal but only weak cell autofluorescence can be seen in Figure ...under two-photon excitation. Figure 1(c) is the two-photon ...
5
Monitoring Photosensitizer Uptake Using Two Photon Fluorescence Lifetime Imaging Microscopy
... Photodynamic therapy (PDT) is a cancer treat- ment for various types of invasive tumors. The main advantages of PDT over traditional cancer treatments are attributed to the localized effects of the photo- chemical ...
10
Two-photon laser scanning fluorescence microscopy using photonic crystal fibre
... the fluorescence signal (i.e. fluorescence yield) from prepared biological samples at standard excitation ...weakly excited by standard commercially available laser ...
18
Single and multi photon excited fluorescence from serotonin complexed with B cyclodextrin
... the hyperluminescence decays from serotonin clearly contain exponential components attributable to bound and free species. For the hyperluminescence the principal lifetimes of bound and free serotonin are 3.4 ns and ...
15
Measurements of Absolute Atomic Nitrogen Density by Two Photon Absorption Laser Induced Fluorescence Spectroscopy in Hot Air Plasma Generated by Microwave Resonant Cavity
... DOI: 10.4236/jasmi.2017.74008 108 Journal of Analytical Sciences, Methods and Instrumentation colliders are related to the gas temperature according the ideal gas law at constant pressure. In the plasma core, the ...
23
Excited state dynamics of a two photon activatable ruthenium prodrug
... active monodentate ligands in the photodynamic therapy window (620–1000 nm) by using TPA and used transient UV/Vis absorption spectroscopy to elucidate its reaction path- ways. Density functional calculations allowed us ...
5
Time resolved nanosecond fluorescence lifetime imaging and picosecond infrared spectroscopy of combretastatin A 4 in solution and in cellular systems
... of two-photon excitation The ultimate objective of this project is to use 2-photon activation of a low activity E-combretastatin to the active Z-isomer with high drug activity within the target site ...
21
Two-photon interference : spatial aspects of two-photon entanglement, diffraction, and scattering
... a two-photon interferometer (Hong-Ou-Mandel-type) with an odd number of mirrors and a built-in image ...using two different ap- ...the two-photon (bunching) visibility V (θ) as a ...
160
Photon Storage in a Dynamic Two Ring Two Bus System
... Then, we fabricated the two-ring-two-bus system in silicon. The SEM image of device is shown in Figure 5(a). The gap between two rings is 0.26 μm, and R1 = 28 μm, R2 = 21 μm. The desired results are ...
6
Entanglement in a Jaynes Cummings Model with Two Atoms and Two Photon Modes
... of two atoms and two photon modes in vacuum, using the Jaynes-Cummings model in the rotating-wave ...the two-atom and two-photon system are generalized to the case of arbitrary ...
8
Comparative Yields of Fe54(γ, pn)Mn52 and Fe54(γ, 2n)Fe52
... Fe 54 (γ,2n)Fe 52 and Fe 57 (γ,p)Mn 56 . The manganese yields were determined by measuring the radioactive manganese chemically separated from the target material. It was found that the total (γ,pn) yield was about 19 ...
36
Comparative Investigation on Structural and Optical Properties of a Yellow-Emitting Zn 3(Vo4)2: Ce3+ Phosphor for Applications in White Light Emitting Devices
... A fluorescent lamp has cathodes at each end of the fluorescent tube. A typical tube is filled with an inert gas and a small amount of mercury that creates vapor. When an electric current is passed through the cathode, ...
100
Surface plasmon-enhanced fluorescence on Au nanohole array for prostate-specific antigen detection
... for fluorescence enhancement on Au nanohole array substrates with Kretschmann ...the fluorescence enhancement indicated that compared with LSP mode alone excited on Au nanohole, the sensitivity of ...
8
Recent advances in hydrogen peroxide imaging for biological applications
... Because fluorescence lifetime τ is independent of indicator concentration, FLIM measurement is essentially insensitive to indicator expres- sion level, non-uniform distribution, and partial photo- ...
10
Enhanced frequency up-conversion in Rb vapor
... nm photon for every six 776 nm photons ...blue fluorescence and 776 nm beam absorption, indicating that the transfer of population to levels 5D 5/2 and 6P 3/2 is not forbidden by two- and ...
7