Broad-band fluorescence upconversion for femtosecond spectroscopy

Schanz, R.; Kovalenko, S. A.; Kharlanov, V.; Ernsting, N. P.
July 2001
Applied Physics Letters;7/30/2001, Vol. 79 Issue 5
Academic Journal
With near-infrared gating and improved light collection geometry, the entire fluorescence band can be upconverted in a broad range of 10 000 cm-1 without readjusting optical elements, thus allowing measurements with a single pump-gate scan. Monitoring of the pump-induced white light continuum provides for the time correction of the up-converted fluorescence spectra. The overall time resolution is then limited by the pump-gate cross correlation. The technique is illustrated with the femtosecond evolution of fluorescence from two molecular probes in solution. © 2001 American Institute of Physics.


Related Articles

  • Bright and stable near-infrared fluorescent protein for in vivo imaging. Filonov, Grigory S; Piatkevich, Kiryl D; Ting, Li-Min; Zhang, Jinghang; Kim, Kami; Verkhusha, Vladislav V // Nature Biotechnology;Aug2011, Vol. 29 Issue 8, p757 

    Imaging biological processes in mammalian tissues will be facilitated by fluorescent probes with excitation and emission bands within the near-infrared optical window of high transparency. Here we report a phytochrome-based near-infrared fluorescent protein (iRFP) with excitation and emission...

  • Near-infrared fluorescent proteins. Shcherbo, Dmitry; Shemiakina, Irina I.; Ryabova, Anastasiya V.; Luker, Kathryn E.; Schmidt, Bradley T.; Souslova, Ekaterina A.; Gorodnicheva, Tatiana V.; Strukova, Lydia; Shidlovskiy, Konstantin M; Britanova, Olga V.; Zaraisky, Andrey G.; Lukyanov, Konstantin A.; Loschenov, Victor B.; Luker, Gary D.; Chudakov, Dmitriy M. // Nature Methods;Oct2010, Vol. 7 Issue 10, p827 

    Fluorescent proteins with emission wavelengths in the near-infrared and infrared range are in high demand for whole-body imaging techniques. Here we report near-infrared dimeric fluorescent proteins eqFP650 and eqFP670. To our knowledge, eqFP650 is the brightest fluorescent protein with emission...

  • A Fast Reconstruction Algorithm for Fluorescence Optical Diffusion Tomography Based on Preiteration. Xiaolei Song; Xiaoyun Xiong; Jing Bai // International Journal of Biomedical Imaging;2007, p1 

    Fluorescence optical diffusion tomography in the near-infrared (NIR) bandwidth is considered to be one of the most promising ways for noninvasive molecular-based imaging. Many reconstructive approaches to it utilize iterative methods for data inversion. However, they are time-consuming and they...

  • Understanding dichromic fluorescence manifested in certain indocyanine green (ICG) analogs. Zongren Zhang; Kao, Jeff; D'Avignon, Andre; Achilefu, Samuel // Pure & Applied Chemistry;Jan2010, Vol. 82 Issue 1, p307 

    Fluorescence has advanced our understanding in various aspects of biological processes. Fluorescence in the near infrared (NIR) region avoids background autofluorescence from biological samples, leading to improved image quality. In searching for indo-cyanine green (ICG) analogs that can be...

  • Dual-Labeling Strategies for Nuclear and Fluorescence Molecular Imaging: A Review and Analysis. Azhdarinia, Ali; Ghosh, Pradip; Ghosh, Sukhen; Wilganowski, Nathaniel; Sevick-Muraca, Eva // Molecular Imaging & Biology;Jun2012, Vol. 14 Issue 3, p261 

    Molecular imaging is used for the detection of biochemical processes through the development of target-specific contrast agents. Separately, modalities such as nuclear and near-infrared fluorescence (NIRF) imaging have been shown to non-invasively monitor disease. More recently, merging of these...

  • Near-infrared enhanced carbon nanodots by thermally assisted growth. Wen, Xiaoming; Yu, Pyng; Toh, Yon-Rui; Lee, Yu-Chieh; Hsu, An-Chia; Tang, Jau // Applied Physics Letters;10/15/2012, Vol. 101 Issue 16, p163107 

    The near-infrared emission, matching the biological window, is conducive to biological applications. To date, most of the reported carbon nanodots emit the blue to green fluorescence and few of carbon nanodots emit the near-infrared with relatively lower efficiency. Here, we report an approach...

  • High resolution imaging beyond the acoustic diffraction limit in deep tissue via ultrasound-switchable NIR fluorescence. Yanbo Pei; Ming-Yuan Wei; Bingbing Cheng; Yuan Liu; Zhiwei Xie; Kytai Nguyen; Baohong Yuan // Scientific Reports;4/18/2014, p1 

    Fluorescence imaging in deep tissue with high spatial resolution is highly desirable because it can provide details about tissue's structural, functional, and molecular information. Unfortunately, current fluorescence imaging techniques are limited either in penetration depth (microscopy) or...

  • Composite Fluorescent Nanoparticles for Biomedical Imaging. Pansare, Vikram; Bruzek, Matthew; Adamson, Douglas; Anthony, John; Prud'homme, Robert // Molecular Imaging & Biology;Apr2014, Vol. 16 Issue 2, p180 

    Purpose: In the rapidly expanding field of biomedical imaging, there is a need for nontoxic, photostable, and nonquenching fluorophores for fluorescent imaging. We have successfully encapsulated a new, extremely hydrophobic, pentacene-based fluorescent dye within polymeric nanoparticles (NPs) or...

  • Guided-mode Resonance Enhanced Near-infrared-to-visible Upconversion Fluorescence in a Resonant Waveguide Grating. Hao Yu Liou; Jian Hung Lin; Zhen-Dao Wang; Chun-Yen Tseng; Ching-Ting Lee; Chu-Chi Ting; Hung-Chih Kan; Chia Chen Hsu // PIERS Proceedings;Aug2014, p897 

    Guided mode resonance (GMR) enhanced near-infrared (near-IR)-to-visible upcon-version fluorescence (UCF) from a rare-earth doped polymer resonant waveguide grating (RWG), comprised of a NaYF4:Yb/Tm nanocrystals doped poly-methyl-methacrylate (NaYF4:Yb/Tm-PMMA) thin layer on top of a textured SU8...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics