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Relevant bibliographies by topics / Femtosecond Upconversion

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Journal articles

Academic literature on the topic 'Femtosecond Upconversion'

Author: Grafiati

Published: 7 September 2023

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Journal articles on the topic "Femtosecond Upconversion"

1

Modak, Monami Das, Ganesh Damarla, Somedutta Maity, Anil K. Chaudhary, and Pradip Paik. "Self-assembled pearl-necklace patterned upconverting nanocrystals with highly efficient blue and ultraviolet emission: femtosecond laser based upconversion properties." RSC Advances 9, no. 65 (2019): 38246–56. http://dx.doi.org/10.1039/c9ra06389g.

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2

Schanz, R., S. A. Kovalenko, V. Kharlanov, and N. P. Ernsting. "Broad-band fluorescence upconversion for femtosecond spectroscopy." Applied Physics Letters 79, no. 5 (2001): 566–68. http://dx.doi.org/10.1063/1.1387257.

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3

A. S., Ashik, Callum F. O’Donnell, S. Chaitanya Kumar, M. Ebrahim-Zadeh, P. Tidemand-Lichtenberg, and C. Pedersen. "Mid-infrared upconversion imaging using femtosecond pulses." Photonics Research 7, no. 7 (2019): 783. http://dx.doi.org/10.1364/prj.7.000783.

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4

Kee, Tak W., Ramkrishna Adhikary, Philip J. Carlson, Prasun Mukherjee, and Jacob W. Petrich. "Femtosecond Fluorescence Upconversion Investigations on the Excited-State Photophysics of Curcumin." Australian Journal of Chemistry 64, no. 1 (2011): 23. http://dx.doi.org/10.1071/ch10417.

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The demonstration of curcumin as a photodynamic therapy agent has generated a high level of interest in understanding the photoinduced chemical and physical properties of this naturally occurring, yellow-orange medicinal compound. Important photophysical processes that may be related to photodynamic therapy effects including excited-state intramolecular hydrogen atom transfer (ESIHT) occur within the femtosecond to picosecond time scales. Femtosecond fluorescence upconversion spectroscopy has sufficient time resolution to resolve and investigate these important photophysical processes. In this review, recent advances in using femtosecond fluorescence upconversion to reveal ultrafast solvation and ESIHT of curcumin are presented. The excited-state photophysics of curcumin has been investigated in alcohols and micellar solutions. The results of curcumin in methanol and ethylene glycol reveal the presence of two decay components in the excited-state kinetics with time scales of 12–20 ps and ∼100 ps. Similarly, in a micellar solution, biphasic kinetics are present with the fast decay component having a time constant of 3–8 ps, the slow decay component 50–80 ps. Deuteration of curcumin in both media leads to a pronounced isotope effect in the slow decay component, which suggests that ESIHT is an important photophysical process on this time scale. The results of multiwavelength fluorescence upconversion studies show that the fast component in the excited-state kinetics is due to ultrafast solvation. These advances form a part of the continuing efforts to elucidate the photodynamic therapy properties of curcumin.

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5

Ma, Shushu, Haiyuan Wei, Hai Zhu, Francis Chi-Chung Ling, Xianghu Wang, and Shichen Su. "Higher-Order Multiphoton Absorption Upconversion Lasing Based on ZnO/ZnMgO Multiple Quantum Wells." Nanomaterials 12, no. 17 (2022): 3073. http://dx.doi.org/10.3390/nano12173073.

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In the progress of nonlinear optics, multiphoton absorption (MPA) upconversion lasing enables many vital applications in bioimaging, three-dimensional optical data storage, and photodynamic therapy. Here, efficient four-photon absorption upconversion lasing from the ZnO/ZnMgO multiple quantum wells (MQWs) at room temperature is realized. Moreover, the MPA upconversion lasing and third-harmonic generation peak generated in the MQWs under the excitation of a femtosecond (fs) laser pulse were observed concurrently, and the essential differences between each other were studied comprehensively. Compared with the ZnO film, the upconversion lasing peak of the ZnO/ZnMgO MQWs exhibits a clear blue shift. In addition, the four-photon absorption upconversion photoluminescence (PL) intensity was enhanced in the MQWs/Au nanoparticles (NPs) by the metal-localized surface plasmons (LSPs). The work paves the way for short-wavelength lasers by taking advantage of the high stability and large exciton binding energy of the MQWs’ structures.

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6

Kuzucu, Onur, Franco N. C. Wong, Sunao Kurimura, and Sergey Tovstonog. "Time-resolved single-photon detection by femtosecond upconversion." Optics Letters 33, no. 19 (2008): 2257. http://dx.doi.org/10.1364/ol.33.002257.

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7

Li, Ruonan, Lifei Sun, Yangjian Cai, et al. "Near-infrared lasing and tunable upconversion from femtosecond laser inscribed Nd,Gd:CaF2 waveguides." Chinese Optics Letters 19, no. 8 (2021): 081301. http://dx.doi.org/10.3788/col202119.081301.

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8

Bennett, C. V., and B. H. Kolner. "Upconversion time microscope demonstrating 103× magnification of femtosecond waveforms." Optics Letters 24, no. 11 (1999): 783. http://dx.doi.org/10.1364/ol.24.000783.

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9

Gerecke, Mario, Genaro Bierhance, Michael Gutmann, Nikolaus P. Ernsting, and Arnulf Rosspeintner. "Femtosecond broadband fluorescence upconversion spectroscopy: Spectral coverage versus efficiency." Review of Scientific Instruments 87, no. 5 (2016): 053115. http://dx.doi.org/10.1063/1.4948932.

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10

Zhao, Lijuan, J. Luis Pérez Lustres, Vadim Farztdinov, and Nikolaus P. Ernsting. "Femtosecond fluorescence spectroscopy by upconversion with tilted gate pulses." Phys. Chem. Chem. Phys. 7, no. 8 (2005): 1716–25. http://dx.doi.org/10.1039/b500108k.

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