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FRET with Upconversion Nanoparticles
Accounts of Chemical ResearchConspectusUpconversion nanoparticles (UCNPs) have become one of the most frequently used nanomaterials for optical biosensing and imaging. UCNPs unique properties include high photostability, low toxicity, large anti-Stokes shifts, and negligible sample background fluorescence under near-infrared (NIR) excitation.
Eduard Madirov, Niko Hildebrandt
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Brightening Upconversion Nanoparticles
Accounts of Chemical ResearchConspectusLanthanide-doped upconversion nanoparticles (UCNPs) represent a distinctive class of luminescent nanomaterials capable of converting low-energy near-infrared (NIR) photons into higher-energy visible or ultraviolet emission through multiphoton processes.
Xingxu Liu, Chang Jiang, Guanying Chen
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Optical Society of America Annual Meeting, 1990
The results of experiments with intracavity sum-frequency generation in a synchronously pumped Styryl-9 dye laser will be presented. An average power of 5 mW at 460 nm is generated by intracavity sum-frequency mixing of the 810 nm dye laser pulses and injected 1.06 μm pulses from a continuous wave mode-locked Nd:YAG laser.
Xin Miao Zhao, Dan McGraw
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The results of experiments with intracavity sum-frequency generation in a synchronously pumped Styryl-9 dye laser will be presented. An average power of 5 mW at 460 nm is generated by intracavity sum-frequency mixing of the 810 nm dye laser pulses and injected 1.06 μm pulses from a continuous wave mode-locked Nd:YAG laser.
Xin Miao Zhao, Dan McGraw
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Applied Optics, 1972
A review is given of the properties of birefringently phase-matched parametric upconversion using proustite as the nonlinear material. Photon conversion efficiency, field-of-view limitations, spectral acceptance bandwidths, and resolution are discussed in terms of the upconversion of radiation from the 10-mu region to wavelengths shorter than 1 mu. The
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A review is given of the properties of birefringently phase-matched parametric upconversion using proustite as the nonlinear material. Photon conversion efficiency, field-of-view limitations, spectral acceptance bandwidths, and resolution are discussed in terms of the upconversion of radiation from the 10-mu region to wavelengths shorter than 1 mu. The
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Plasmon enhancement of luminescence upconversion
Chemical Society Reviews, 2015This review is aimed at offering a comprehensive framework for plasmon enhanced luminescence upconversion.
Wounjhang, Park, Dawei, Lu, Sungmo, Ahn
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Upconversion photoluminescence analysis of fluoroquinolones
Analytical and Bioanalytical Chemistry, 2019The characteristics of the upconversion (UC) photoluminescence (PL) of fluoroquinolones (FQs) are reported here for the first time. Using UC PL, a simple, sensitive, and cost-effective method of determining FQs was developed that eliminated interference arising from biological background fluorescence and did not require UV light to excite the FQ (in ...
Qiuju, Zhou +3 more
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Upconversion multichannel infrared spectrometer
Optics Letters, 2005A multichannel IR spectrometer using a standard silicon CCD array is demonstrated. Sum frequency generation between an ultrafast optical pulse and a frequency-dispersed IR beam generates a spatially extended optical signal that is collected on a generic CCD video camera.
Matthew F, DeCamp, Andrei, Tokmakoff
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Experimental Studies of Upconversion Laser Materials and Upconversion Lasers
1992Results will be presented of our spectrocopic measurements on Er:YLi:F4 and Er:BaY2F8. These materials have now been employed to make red, green and blue lasers that are pumped in the infrared. An output power 0.5 W has been measured at 551 nm with a 14% slope efficiency.
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Photon Upconversion in Aqueous Nanodroplets
Journal of the American Chemical Society, 2019Triplet fusion upconversion, the conversion of two low-energy photons into one higher-energy photon via excitonic intermediates, has the potential to revolutionize fields as diverse as biological imaging, photovoltaics, and optogenetics. However, important hurdles to widespread application still exist; for example, the vast majority of demonstrations ...
Samuel N. Sanders +3 more
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