Electromagnetic power loss in open coaxial diodes and the Langmuir-Blodgett law

Kumar, Raghwendra; Biswas, Debabrata
October 2010
Physics of Plasmas;Oct2010, Vol. 17 Issue 10, p104506
Academic Journal
The space charge limited current in coaxial diodes with electromagnetic power loss is studied. The Langmuir-Blodgett law is expressed in terms of the electromagnetic power loss and the applied voltage. Particle-in-cell simulations of photodiode-like situations and high power diodes confirm the relation between the applied voltage, diode voltage, and electromagnetic power loss.


Related Articles

  • Space Charge Limited Current in a Coaxial Diode of Magnetron. El-Bendary, Atef // International Review of Physics;Dec2010, Vol. 4 Issue 6, p298 

    In high power microwave diode design, the space charge limited current is important because of its relation to the impedance, and the formation of virtual cathode. Although the Langmuir-Blodgett law, as a numerical solution, is helpful, a simple functional expression would be more convenient for...

  • Micronewton electromagnetic thruster. Charrier, D. S. H. // Applied Physics Letters;7/16/2012, Vol. 101 Issue 3, p034104 

    A low cost and light electromagnetic thruster, consisting in a disc rigidly attached with a coaxial coil, shows steady recoil by losing its linear momentum. The signal applied in the device is a square electric potential. A continuous thrust is observed on the center-of-mass in one single...

  • Effects of optical coupling in III-V multilayer systems. Baur, Carsten; Hermle, Martin; Dimroth, Frank; Bett, Andreas W. // Applied Physics Letters;5/7/2007, Vol. 90 Issue 19, p192109 

    A method to visualize and investigate radiative recombination processes in compound semiconductor materials by utilizing the effect of optical coupling in III-V multilayer systems is presented. For this purpose, a semiconductor material of interest is grown on an activated germanium (Ge)...

  • Thin smart multilayer microwave absorber based on hybrid structure of polymer and carbon nanotubes. Danlée, Y.; Huynen, I.; Bailly, C. // Applied Physics Letters;5/21/2012, Vol. 100 Issue 21, p213105 

    We present a thin and flexible multilayer solution for effective absorption of electromagnetic waves from 8 to 40 GHz and probably higher. Submillimetric conductive and dielectric layers based on polymer and carbon nanotubes are successively stacked. A smart gradient-periodic arrangement results...

  • Maximum time-dependent space-charge limited diode currents. Griswold, M. E.; Fisch, N. J. // Physics of Plasmas;2016, Vol. 23 Issue 1, p1 

    Recent papers claim that a one dimensional (1D) diode with a time-varying voltage drop can transmit current densities that exceed the Child-Langmuir (CL) limit on average, apparently contradicting a previous conjecture that there is a hard limit on the average current density across any 1D...

  • Si/SiGe-based edge-coupled photodiode with partially p-doped photoabsorption layer for high responsivity and high-power performance. Shi, J.-W.; Chiu, P.-H.; Huang, F.-H.; Wu, Y.-S.; Lu, Ja-Yu; Sun, C.-K.; Liu, C.-W.; Chen, P.-S. // Applied Physics Letters;5/8/2006, Vol. 88 Issue 19, p193506 

    We demonstrate a Si/SiG-based edge-coupled photodiode that can achieve high-speed, high output power, and high responsivity performance at a wavelength of 830 nm for application to short-reach fiber communication. We incorporate a p-type-doped Si/Si0.5Ge0.5-based superlattice with a Si-based...

  • A coherent two-channel source of Cherenkov superradiance pulses. Rostov, V. V.; Elchaninov, A. A.; Romanchenko, I. V.; Yalandin, M. I. // Applied Physics Letters;5/28/2012, Vol. 100 Issue 22, p224102 

    A two-channel source of Cherenkov superradiance pulses with the electron-wave systems of identical geometry which is capable of producing 2 × 0.3 GW pulses of duration 2 ns and center frequency 10 GHz has been developed and explored. The channels are powered by a high-voltage driver whose...

  • Generation of high-voltage pulses with a subnanosecond leading edge in an open discharge. I. design and experimental data on switching characteristics. Bokhan, P.; Gugin, P.; Zakrevskii, D.; Lavrukhin, M. // Technical Physics;Oct2015, Vol. 60 Issue 10, p1464 

    A new type of switch based on a photoelectron open discharge is studied. The switch can generate high-voltage pulses with a subnanosecond leading edge. The coaxial and planar designs of the switch are studied. The feasibility of switching currents reaching several tens of kiloamperes with a...

  • Design Of Piezoelectric Microcantilever Chemical Sensors In COMSOL Multiphysics Area. Norouzi, Maziar; Kashaninia, Alireza // Journal of Electrical & Electronics Engineering;Jun2009, Vol. 2 Issue 1, p184 

    This paper offers an analytical modeling of thin-filmed, multi-layer piezoelectric microcantilevers that are used as MEMS sensors. These sensors are chemical kind and use piezoelectric microcantilever. These types of microcantilevers are covered with variety of unique probe coating. The sensor...


Read the Article


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

Try another library?
Sign out of this library

Other Topics