Last edited by Keshura
Tuesday, April 28, 2020 | History

4 edition of Optically activated switching found in the catalog.

Optically activated switching

5-6 November 1990, Boston, Massachusetts

by

  • 380 Want to read
  • 14 Currently reading

Published by SPIE in Bellingham, Wash., USA .
Written in English

    Subjects:
  • Photonics -- Congresses,
  • Switching circuits -- Congresses,
  • Semiconductor switches -- Congresses

  • Edition Notes

    StatementFred J. Zutavern, chair/editor ; sponsored by SPIE--the International Society for Optical Engineering.
    GenreCongresses.
    SeriesProceedings / SPIE--the International Society for Optical Engineering -- v. 1378., Proceedings of SPIE--the International Society for Optical Engineering -- v. 1378.
    ContributionsZutavern, Fred J., Society of Photo-optical Instrumentation Engineers., OE/Boston "90 (1990)
    Classifications
    LC ClassificationsTA1505 .O632 1991
    The Physical Object
    Paginationx, 288 p. :
    Number of Pages288
    ID Numbers
    Open LibraryOL19567385M
    ISBN 100819404454
    ISBN 109780819404459
    LC Control Number90064011
    OCLC/WorldCa23529637

    This paper presents simulated and measured results for an optically controlled switchable microstrip filter. When activated by laser light, the filter changes from a bandstop to a bandpass filter in the GSM frequency range. Switching is achieved using a high-resistivity photoconducting Silicon die. Filter efficiency is discussed using power losses as measurement . The conference article can be found from pages in the conference proceedings e-book. Other authors include Dr. Hani-Al Hajjar, Mr. Santiago V. . For biomagnetical applications exploiting physical properties of magnetic nanoparticles (MNP), e.g., magnetic hyperthermia, knowledge about the quantitative spatial MNP distribution is crucial, which can be extracted by magnetorelaxometry (MRX) imaging. In this paper, we present quantification, quantitative 1D reconstruction, and quantitative 2D imaging of MNP by . activated into the fluorescent state and subsequently localized with high precision at any given instant. The localized fluorophores are then switched back into the dark state and a new subset is activated. The cycle of switching and localizing repeats until a sufficient number of points are accumulated to reconstruct a super-resolution image.


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Optically activated switching Download PDF EPUB FB2

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle.

This text covers research and development in high-power, high-speed and optically-activated switches. It provides in-depth treatment of silicon and GaAs, linear and nonlinear high-gain photoconductive semiconductor switching, plus information on new applications such as multimegavolt, multimega-amp pulsed-power by: Optically activated switching III: JanuaryLos Angeles, California.

Optically activated switching 3 Optically activated switching three: Responsibility: R. Aaron Falk, chair/editor ; sponsored and published by SPIE--the International Society for Optical Engineering.

JanuaryLos Angeles, California\/span> \u00A0. See proc. Pulsed Power, Power Modulator, and Optically Activated Switching Conferences, IEEE and SPIE, Book Rvw: High-Power Optically. Proc. SPIEOptically Activated Switching II, pg (12 May ); doi: / Read Abstract + The lock-on effect observed in high power, light-activated GaAs bulk switches is very important in determining the GaAs power device performance.

Switching Energy Optical Injection Longe Infrared Wavelength Excitation Energy Density Infrared Fiber These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm : A. Nurmikko, S. Jamison, S.

Jamison. An opto-isolator (also called an optocoupler, photocoupler, or optical isolator) is an electronic component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients.

Proc. SPIEOptically Activated Switching IV, pg 2 (4 January ); doi: / Read Abstract + The electric fields of bulk () and surface () GaAs high-voltage photoconductive switches were imaged utilizing the electro-optic effect of the semi-insulating GaAs substrate.

This paper outlines and demonstrates a novel optically activated gate control (OAGC) mechanism that can dynamically affect power-converter switching loss, dv / dt and di / dt stresses, and. Innovative Switching Technology Ch. The GaAs MESFET as an Optically Activated Switch Ch.

Optically Activated Travelling Wave Generators Ch. High-Voltage Lateral Switches From Silicon or Gallium Arsenide Ch. III-V-Based Optoelectronic Devices for High-Power Switching Ch. Optically Activated Opening of Copper-Doped Gallium Arsenide Switches.

College Park, MD: 5th SDIO/ONR Pulse Power Meeting. Lakdawala, V. K., Panigrahi, S., Thomas, L., and Brinkmann, R. Deep Level Characterization Studies for Optically Controlled Semiconductor Switch Materials Using a Novel Technique.

S.K. Mazumder, T. Sarkar, and S.N. Bose, “Photonic modulation of SiC based power semiconductor device switching dynamics using optically triggered power transistor”, Plenary Paper, Int.

Workshop on the Physics of Semiconductor Devices, Cited by: Publications of Dr. Chi H. Lee Department of Electrical Engineering University of Maryland at College Park Editor of a book ``Picosecond Optoelectronic Devices", Academic Press, December, in Research on Photoconductive Power Switching at the University of Maryland," paper presented at the Symposium on Optically-Activated Switching.

Advanced optically-activated solid-state electrical switch development at Sandia has demonstrated multi-kA/kV switching and the path for scalability to even higher current/power.

Realization of this potential requires development of new optical sources/switches based on key Sandia photonic device technologies: vertical-cavity surface-emitting. @article{osti_, title = {Circular polarization switching and bistability in an optically injected nm spin-vertical cavity surface emitting laser}, author = {Alharthi, S.

S., E-mail: [email protected] and Henning, I. and Adams, M. and Hurtado, A. and Institute of Photonics, Physics Department, University of Strathclyde, Wolfson Centre, Rottenrow. The switching threshold of a NOLM can be reduced considerably by incorporating an optical amplifier within the loop.

If the amplifier is located close to the fiber coupler, its presence introduces an asymmetry such that even a coupler (f=) can be feature can be understood by noting that one wave is amplified at the entrance to the loop while the. Control of next generation naval wide-bandgap power-electronic systems using predictive switching sequences and switching transitions, Office of Naval Research, High-voltage optically-activated wide-bandgap rapid fault isolation device, National Science Foundation, Recently-Closed Grants.

A MOSFET relay offers superior performance to an electromechanical relay in many applications. It is a solid-state device that replaces a coil-activated mechanical switch with an optically isolated input stage driving a MOSFET.

Internally, a MOSFET relay includes an input-side LED and an output side with a. The availability of optically bistable devices allows for optically controlled components useful for optical computing, such as optically activated switches, gates, and memory devices.

Thus, the components needed for digital optical computing have been developed and demonstrated, although not necessarily in the large arrays required for a full. (RE: Components) 2) Exploding Wires Vol. 4, Proc. of 4th Conf. on the Exploding Wire Phenomena. Chace and Moore -Plenum Press (RE: EBW's) 3) High Power Optically Activated Solid State Switches, ed.

Rosen And Zutavern- Artech House (RE: Solid state devices) 4) High Speed Pulse Technology by Frank Frungel -Academic Press. S.K.

Mazumder and T. Sarkar, “Optically-activated gate control of power semiconductor device switching dynamics”, International Symposium on Power Semiconductor Devices and ICs, pp.L.

A solid-state relay (SSR) is an electronic switching device that switches on or off when a small external voltage is applied across its control terminals. SSRs consist of a sensor which responds to an appropriate input (control signal), a solid-state electronic switching device which switches power to the load circuitry, and a coupling mechanism to enable the control signal to activate.

Schoenbach, K.H., “Chapter 6: Optically Activated Opening of Cop per-Doped Gallium Arsenide Switches”, High-Power Optically Acti vated Solid-State Switches, eds. Rosen and F. Zutavem.

This paper describes the development and the realization of an adaptive antenna based on a reconfigurable parasitic structure. The geometry of the proposed antenna is circular, and it is composed by an active omni-directional radiator, surrounded by a number of parasitic elements that can be optically activated and configured as a director or as a reflector.

The optical Author: Massimo Donelli. Thomas and V. Lakdawala, "Influence of Arsenic Vapor Pressure During Coper Diffusion on Deep Level Foundation in Silicon Doped Gallium Arsenide," Journal of Electronics Materials, Vol.

22, No. 4, pp.April L. Thomas and V. Lakdawala, "Influence of Fabrication Techniques on Gallium Arsenide Switch Photoconductivity," Proceedings SPIE.

Schoenbach, K.H., “Chapter 6: Optically Activated Opening of Cop per-Doped Gallium Arsenide Switches,” High-Power Optically Acti vated Solid-State Switches, eds. Rosen and F. Zutavern. A pump system containing no external parts or valves is provided. The pump system is characterized by a common type of actuating mechanism and incorporates reversibly expanding actuators, preferably electroactive actuators.

Fluid is caused to move at a selected flow rate and direction by sequentially activating contiguous actuators located inside the by: The Society for Information Display Technical Digests consist of short papers and poster session content from SID's annual symposium, Display Week. Novel photonic control of power semiconductor devices for next-generation power electronics applications are discussed with special emphasis on SiC DMOSFET.

Key mechanism behind the photonic modulation of the switching dynamics of the SiC DMOSFET is illustrated. Specific aspects of switching loss reduction, compensation for temperature-induced drift, and on-state.

Introduction. The field of neuroscience is now in the 10th year of the optogenetics revolution. It was one decade ago that excitation of a microbial opsin functioning as a light-activated cation channel was first shown to successfully control neuronal excitability (Boyden et al., ; Li et al., ).Subsequently, a variety of light-activated cation channels, chloride pumps, and proton Cited by: 3) High Power Optically Activated Solid State Switches, ed.

Rosen And Zutavern- Artech House (RE: Solid state devices) 4) High Speed Pulse Technology by Frank Frungel -Academic Press. (RE: EBW's, FCG's, components) 5) High Velocity Impact Phenomena by. Looking for online definition of BEEE or what BEEE stands for. BEEE is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms.

Two-dimensional semiconductor laser arrays for optically activated switching. We report on an optically activated phase modulator (OAM) and modulator array on GaAs‐GaAlAs compound semiconductor rib waveguides.

A rib waveguide device with an optical activation window of 5 μm in diameter was fabricated. Optical activation was produced by using a HeNe nm wavelength as the free‐carrier generator and a μm laser as the signal by: 2.

A light activated optical switch includes at least one conductive layer located adjacent to a piezoelectric element to enhance the electrical field that is applied to the piezoelectric element in response to an activation light.

The conductive layer has free electrons or electron holes that collect on a surface adjacent to the piezoelectric element when the activation light is applied to Cited by: 3. Make sure this fits by entering your model number.; Ergonomic tactical switching: click-on/off tail cap and pressure-activated tape switch (both included) Solid-state, recoil-proof LED generates lumens of blinding white light and continues producing tactical-level light for hours/5(38).

They are however very slow switching devices and are not capable of achieving even low microsecond switching speeds. A new class of devices is at present showing great promise in the R&D sector. These devices are optically (usually LASER) switched devices employing GaAs or Diamond film technologies.

3) High Power Optically Activated Solid State Switches, ed. Rosen And Zutavern- Artech House (RE: Solid state devices) 4) High Speed Pulse Technology by Frank Frungel -Academic Press.

(RE: EBW's, FCG's, components) 5) High Velocity Impact Phenomena by Ray Kinslow-Academic Press. (RE: Foil Slappers). When Optical Margin Alignment is activated, not only is punctuation “pulled” into the margin to create a more visually uniform alignment, but so are serifs and the edges of certain overhanging characters, such as T, Y and A.

To set Optical Margin Alignment in Adobe InDesign: Select the text box, or place the cursor within the text. switching dynamics using optically triggered power transistor”, Keynote lecture, International Workshop on Physics of Semiconductor Devices (IWPSD), T5.

S.K. Mazumder and T. Sarkar, “Optically-triggered Power Transistor (OTPT) for fly-by-light (FBL)/EMI. Tweet. Introduction - The purpose of these pages is to introduce the student and hobbyist to electronics projects. My hope is generate interest for those thinking about entering a high tech field, or simply to have fun.

I've been a part-time adjunct professor at a local community college teaching electricity and electronics. proximity sensors, these are used as optically activated switches and are described in more detail in Module Module 5 What you’ll learn in Module After studying this section, you should be able to: Describe the operation of a phototransistor.

Describe typical uses for photo Size: KB.Cyanine dyes are well-known for their bright fluorescence and utility in biological imaging. However, cyanines also readily photoisomerize to produce nonemissive dark states. Co-illumination with a secondary, red-shifted light source on-resonance with the longer wavelength absorbing dark state reverses the photoisomerization and returns the cyanine dye to the Cited by: 8.

The CRY2–CIB1 system has been successfully utilized for optical control of intracellular signal23,24,25, lipid metabol gene express28,29,30 and organelle transp and Cited by: