scholarly journals Pulse-enhanced two-photon interference with solid state quantum emitters

2019 ◽  
Vol 100 (9) ◽  
Author(s):  
Herbert F. Fotso
Keyword(s):  
Solid State ◽  
Two Photon ◽  
Quantum Emitters

Two-Photon Interference from Multiple Solid-State Quantum Emitters

2017 ◽  
Author(s):  
Je-Hyung Kim ◽  
Christopher J. K. Richardson ◽  
Richard P. Leavitt ◽  
Edo Waks
Keyword(s):  
Solid State ◽  
Two Photon ◽  
Quantum Emitters

scholarly journals Two-photon interference of weak coherent laser pulses recalled from separate solid-state quantum memories

2013 ◽  
Vol 4 (1) ◽  
Author(s):  
Jeongwan Jin ◽  
Joshua A. Slater ◽  
Erhan Saglamyurek ◽  
Neil Sinclair ◽  
Mathew George ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Pulses ◽  
Two Photon

scholarly journals Nonlinear Optical Pigments. Two-Photon Absorption in Crosslinked Conjugated Polymers and Prospects for Remote Nonlinear Optical Thermometry

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1670
Author(s):  
Jan K. Zaręba ◽  
Marcin Nyk ◽  
Marek Samoć
Keyword(s):  
Solid State ◽  
Conjugated Polymers ◽  
Nonlinear Optical ◽  
Photon Absorption ◽  
Model Compounds ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Sensing Applications ◽  
Spectrally Resolved ◽  
The Impact

Nonlinear optical (NLO) pigments are compounds insoluble in solvents that exhibit phenomena related to nonlinear optical susceptibilities (χ(n) where n = 2,3,...), e.g., two-photon absorption (2PA) which is related to the imaginary part of χ(3). Determination of spectrally-resolved 2PA properties for NLO pigments of macromolecular nature, such as coordination polymers or crosslinked polymers, has long been a challenging issue due to their particulate form, precluding characterizations with standard techniques such as Z-scan. In this contribution, we investigate thus far unknown spectrally-resolved 2PA properties of a new subclass of NLO pigments—crosslinked conjugated polymers. The studied compounds are built up from electron-donating (triphenylamine) and electron-withdrawing (2,2’-bipyridine) structural fragments joined by vinylene (Pol1) or vinyl(4-ethynylphenyl) (Pol2) aromatic bridges. 2PA properties of these polymers have been characterized in broad spectral range by specially modified two-photon excited fluorescence (TPEF) techniques: solid state TPEF (SSTPEF) and internal standard TPEF (ISTPEF). The impact of self-aggregation of aromatic backbones on the 2PA properties of the polymers has been evaluated through extended comparisons of NLO parameters, i.e., 2PA cross sections (σ2) and molar-mass normalized 2PA merit factors (σ2/M) with those of small-molecular model compounds: Mod1 and Mod2. By doing this, we found that the 2PA response of Pol1 and Pol2 is improved 2–3 times versus respective model compounds in the solid state form. Further comparisons with 2PA results collected for diluted solutions of Mod1 and Mod2 supports the notion that self-aggregated structure contributes to the observed enhancement of 2PA response. On the other hand, it is clear that Pol1 and Pol2 suffer from aggregation-caused quenching phenomenon, well reflected in time-resolved fluorescence properties as well as in relatively low values of quantum yield of fluorescence. Accordingly, despite improved intrinsic 2PA response, the effective intensity of two-photon excited emission for Pol1 and Pol2 is slightly lower relative to Mod1 and Mod2. Finally, we explore temperature-resolved luminescence properties under one- (377 nm), two- (820 nm), and three-photon excitation (1020 nm) conditions of postsynthetically Eu3+-functionalized material, Pol1-Eu, and discuss its suitability for temperature sensing applications.

scholarly journals A monolithic immersion metalens for imaging solid-state quantum emitters

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Tzu-Yung Huang ◽  
Richard R. Grote ◽  
Sander A. Mann ◽  
David A. Hopper ◽  
Annemarie L. Exarhos ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Emitters

Ruthenium(II)-nitrosyl polypyridinyl Complexes: from NO/ON Isomerization to NO delivery

2015 ◽  
Vol 1767 ◽  
pp. 65-74
Author(s):  
Pascal G. Lacroix ◽  
Isabelle Malfant
Keyword(s):  
Solid State ◽  
Photon Absorption ◽  
High Yield ◽  
Absorption Process ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Ruthenium Nitrosyl ◽  
Nlo Response ◽  
No Release ◽  
Computational Strategy

ABSTRACTRuthenium-nitrosyl (RuII(NO)) complexes are stable in the dark, but exhibit a unique photoreactivity which can lead either to a solid state isomerization from RuII(NO) to RuII(ON), or to a nitric oxide (NO·) release in solution. From our recent discovery of a high yield of isomerization (> 92%) in [RuII(py)4Cl(NO)](PF6)2, we have developed a computational strategy aimed at designing switchable nonlinear optical (NLO) material with high contrast (large difference in the on / off NLO response) in the solid state. Our synthetic targets are terpyridine based RuII chromophores in which various substituents can be introduced to adjust the NLO response which, at best, should be vanishing in the off state. Alternatively, these complexes can undergo a photo-induced NO· release in solution, a possibility which becomes increasingly appealing in relation to the discovery of the numerous biological roles of NO·, in the context of the emergence of the photodynamic therapy. A promising fluorene-terpyridine RuII(NO) complex was investigated, which could find an additional interest in relation to its capability for releasing NO· by a two-photon absorption process.

Aromatic Polyimides Containing Main-Chain Diphenylaminofluorene–Benzothiazole Motif: Fluorescence Quenching, Two-Photon Properties, and Exciplex Formation in a Solid State

2011 ◽  
Vol 44 (18) ◽  
pp. 7194-7206 ◽  
Author(s):  
Matthew J. Dalton ◽  
Ramamurthi Kannan ◽  
Joy E. Haley ◽  
Guang S. He ◽  
Daniel G. McLean ◽  
...  
Keyword(s):  
Solid State ◽  
Fluorescence Quenching ◽  
Main Chain ◽  
Aromatic Polyimides ◽  
Two Photon ◽  
Exciplex Formation
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