Fluorescence

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Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength. (Wikipedia.org)






Conferences related to Fluorescence

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IGARSS 2015 - 2015 IEEE International Geoscience and Remote Sensing Symposium

The Geoscience and Remote Sensing Society (GRSS) seeks to advance science and technology in geoscience, remote sensing and related fields using conferences, education and other resources. Its fields of interest are the theory, concepts and techniques of science and engineering as they apply to the remote sensing of the earth, oceans, atmosphere, and space, as well as the processing, interpretation and dissemination of this information.



Periodicals related to Fluorescence

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Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Geoscience and Remote Sensing, IEEE Transactions on

Theory, concepts, and techniques of science and engineering as applied to sensing the earth, oceans, atmosphere, and space; and the processing, interpretation, and dissemination of this information.


Lightwave Technology, Journal of

All aspects of optical guided-wave science, technology, and engineering in the areas of fiber and cable technologies; active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; systems and subsystems; new applications; and unique field trials.


Selected Topics in Quantum Electronics, IEEE Journal of

40% devoted to special issues published in J. Quantum Electronics. Other topics: solid-state lasers, fiber lasers, optical diagnostics for semi-conductor manufacturing, and ultraviolet lasers and applications.




Xplore Articles related to Fluorescence

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Finger-powered bead-in-droplet microfluidic system for point-of-care diagnostics

Micro Electro Mechanical Systems (MEMS), 2012 IEEE 25th International Conference on, 2012

In this paper, we present a versatile `human-powered' microfluidic system that encapsulates microbeads within droplets to perform a medical diagnostics assay. Point-of-care (POC) microfluidic devices hold great promise for medicinal applications throughout the world. In particular, portable, low-cost systems that can be operated by non-medical personnel without electrical supplies are desired. Here we present a PDMS microfluidic device (2.8 cm ...


Radiation damage by neutrons to plastic scintillators

Nuclear Science, IEEE Transactions on, 1995

Polystyrene based scintillator SCSN38, wavelength shifter Y7 with polymethylmethacrylate matrix and pure PMMA light guide GS218 have been irradiated in the mixed radiation field of a pool reactor. About 77% of the dose released in SCSN38 was caused by the γ-field, 23% by fast neutrons. The total dose ranged from 2 to 105 kGy. The dose measurements were made using ...


Nanoelectropulse-driven membrane perturbation and permeabilization

Bio Micro and Nanosystems Conference, 2006. BMN '06, 2006

Alterations in the asymmetric arrangement of phospholipids in the plasma membrane serve as both a semaphore and a structural component in platelet activation, lymphocyte signal transduction, and the phagocytotic clearance of apoptotic cells and aging erythrocytes. Nanosecond, megavolt-per-meter electric pulses - high instantaneous power but low total energy - induce phosphatidylserine (PS) externalization without physically disrupting the membrane, providing a ...


Focusing fluids and light

Nanotechnology Magazine, IEEE, 2008

There exist two major technical challenges when developing on-chip single- particle detection systems: focusing the particles and focusing the light. Flow cytometry is used to measure the optical and fluorescence characteristics of single cells while cells pass through an optical interrogation area (with dimensions on the order of several micrometers to tens of micrometers) that is defined by a focused ...


Biomedical thermometry-a simple fiber optic approach

Biomedical Engineering, IEEE Transactions on, 1988

A portable, fluorescence-based fiber-optic thermometer for use in the 30-50 degrees C range has been constructed using inexpensive solid state electronic and optoelectronic components. A novel measurement scheme allows greater noise discrimination to be achieved with such low bandwidth components. The system is described and discussed, and results of its calibration are reported.


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Educational Resources on Fluorescence

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eLearning

Non-linear transfer of orbital angular momentum

Ping-Fung Ng; Mary Ann Go; Berenger Seelweger; Hans-A. Bachor; Vincent R. Dana 2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology, 2011

The orbital angular momentum (OAM) carried by Laguerre-Gaussian beams can be transferred to move particles along its ring-shaped intensity distribution. Here, we show a unique non-linear effect where a fluorescent microbead is moved in the opposite direction as the OAM.


Luminescent Microspheres Resolved from Strong Background on an Automated Time-Gated Luminescence Microscopy Workstation

Leonard G. C. Hamey; Russell E. Connally; Simon Wong Too Yen; Thomas S. Lawson; James A. Piper; Jon Iredell 2009 Digital Image Computing: Techniques and Applications, 2009

Fluorescence microscopy is a powerful tool for the rapid identification of target organisms. However, natural autofluorescence often interferes with identification. Time-gated luminescence microscopy (TGLM) uses luminescent labels with long persistence in conjunction with digital imaging to regain discriminative power. Following the excitation pulse, short-lived autofluorescence decays rapidly whereas the long-lived emission from lanthanide doped polymer beads persists for hundreds of ...


Automated, portable, low-cost optical microscope

Kenneth J. Chau; Samuel Schaefer CLEO: 2013, 2013

We build a portable, low-cost microscope capable of bright-field and fluorescence imaging with micron-scale resolution in reflection or transmission mode. Software control of image capture and actuation enables automated focusing and large-area sample visualization.


Characterization of immobilized pH gradient formed in capillary based on quantum dots

Yao Xie; Haiyan Xie; Feng Qu; Aiqin Luo; Lina Geng; Yulin Deng 2007 IEEE/ICME International Conference on Complex Medical Engineering, 2007

A new fluorescence imaging method was used for the characterization of the immobilized pH gradient formed in capillary, which was based on charge carried quantum dots (QDs). It was found that the positive charged QDs were concentrated in the same positive region in capillary after CIEF, no matter which terminal of the capillary was used for injection. Furthermore, the formation ...


Microwave-Assisted Synthesis and Crystal Structure of 3',3-Benzylidene-Bis-4-Hydroxycoumarin

Sheying Dong; Penghui Zhang; Jing Li 2009 Symposium on Photonics and Optoelectronics, 2009

3',3-benzylidene-bis-4-hydroxycoumarin (BBHC) was prepared by using a microwave synthetic route in which 4- hydroxycoumarin was treated with benzaldehyde in the presence of ethanol. The formation of BBHC was characterized by IR, 1H-NMR, MS and elemental analysis. Its crystal structure was determined by X-ray single crystal diffraction. Compared with BBHC synthesized by conventional heating methods, there was no isomerism phenomenon in ...


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IEEE-USA E-Books

  • Light Emission Mechanism

    This chapter describes the light emission mechanisms of OLEDs. There are three common types of emission mechanisms: fluorescent OLED, phosphorescent OLED, and thermally activated delayed fluorescent (TADF) OLED.In the fluorescent OLED, only the excited singlet state gives an emission. The theoretical maximum internal quantum efficiency is only 25%. However, the phosphorescent OLED can utilize the emission from the excited singlet and triplet states, so these OLEDs can achieve an internal quantum efficiency of 100%, in principle. More recently, a third mechanism, thermally activated delayed fluorescence (TADF), was discovered, and practical materials are actively being developed.The final section of this chapter discusses the total light emission efficiency, which is very important in actual OLED devices.



Standards related to Fluorescence

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No standards are currently tagged "Fluorescence"


Jobs related to Fluorescence

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