scholarly journals Electron tunneling into a quantum wire in the Fabry-Pérot regime

2009 ◽  
Vol 79 (3) ◽  
Author(s):  
Stefano Pugnetti ◽  
Fabrizio Dolcini ◽  
Dario Bercioux ◽  
Hermann Grabert
Keyword(s):  
Quantum Wire ◽  
Electron Tunneling ◽  
Fabry Perot

Temperature invariant lasing and gain spectra in self-assembled GaInAs quantum wire Fabry–Perot lasers

2001 ◽  
Vol 78 (8) ◽  
pp. 1047-1049 ◽  
Author(s):  
D. E. Wohlert ◽  
K. Y. Cheng ◽  
S. T. Chou
Keyword(s):  
Quantum Wire ◽  
Fabry Perot ◽  
Gain Spectra ◽  
Self Assembled

Electron Tunneling from a Quantum Wire Formed at the Edge of a SIMOX-Si Layer

1996 ◽  
Author(s):  
Yukinori ONO ◽  
Yasuo TAKAHASHI ◽  
Seiji HORIGUCHI ◽  
Katsumi MURASE ◽  
Michiharu TABE
Keyword(s):  
Quantum Wire ◽  
Electron Tunneling

One-dimensional quantum-wire states probed by resonant electron tunneling

1994 ◽  
Vol 49 (3) ◽  
pp. 2269-2272 ◽  
Author(s):  
M. M. Dignam ◽  
R. C. Ashoori ◽  
H. L. Stormer ◽  
L. N. Pfeiffer ◽  
K. W. Baldwin ◽  
...  
Keyword(s):  
Quantum Wire ◽  
Electron Tunneling ◽  
One Dimensional ◽  
Resonant Electron

Diphotons in a nonlinear Fabry-Pérot resonator: Bound states of interacting photons in an optical ‘‘quantum wire’’

1992 ◽  
Vol 69 (25) ◽  
pp. 3627-3630 ◽  
Author(s):  
Ivan H. Deutsch ◽  
Raymond Y. Chiao ◽  
John C. Garrison
Keyword(s):  
Quantum Wire ◽  
Bound States ◽  
Fabry Perot

A TEM study of electron tunneling in biological macromolecules

1987 ◽  
Vol 45 ◽  
pp. 140-141
Author(s):  
J. A. Panitz
Keyword(s):  
Stark Effect ◽  
Electron Tunneling ◽  
Imaging Modality ◽  
Tunneling Current ◽  
Biological Species ◽  
Scanning Tunneling ◽  
Biological Macromolecules ◽  
Flat Surfaces ◽  
Virus Particles ◽  
Stm Images

Tunneling is a ubiquitous phenomenon. Alpha particle disintegration, the Stark effect, superconductivity in thin films, field-emission, and field-ionization are examples of electron tunneling phenomena. In the scanning tunneling microscope (STM) electron tunneling is used as an imaging modality. STM images of flat surfaces show structure at the atomic level. However, STM images of large biological species deposited onto flat surfaces are disappointing. For example, unstained virus particles imaged in the STM do not resemble their TEM counterparts.It is not clear how an STM image of a biological species is formed. Most biological species are large compared to the nominal electrode separation of ∼ 1nm that is required for electron tunneling. To form an image of a biological species, the tunneling electrodes must be separated by a distance that would normally be too large for a tunneling current to be observed.

Strain measurement in In0.2Ga0.8As/GaAs quantum wires by convergent beam electron diffraction

1995 ◽  
Vol 53 ◽  
pp. 444-445
Author(s):  
S. Hillyard ◽  
Y.-P. Chen ◽  
J.D. Reed ◽  
W.J. Schaff ◽  
L.F. Eastman ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Semiconductor Lasers ◽  
Quantum Wire ◽  
Quantum Wires ◽  
Convergent Beam Electron Diffraction ◽  
Zero Order ◽  
Beam Electron ◽  
Local Lattice ◽  
Device Applications ◽  
Convergent Beam

The positions of high-order Laue zone (HOLZ) lines in the zero order disc of convergent beam electron diffraction (CBED) patterns are extremely sensitive to local lattice parameters. With proper care, these can be measured to a level of one part in 104 in nanometer sized areas. Recent upgrades to the Cornell UHV STEM have made energy filtered CBED possible with a slow scan CCD, and this technique has been applied to the measurement of strain in In0.2Ga0.8 As wires.Semiconductor quantum wire structures have attracted much interest for potential device applications. For example, semiconductor lasers with quantum wires should exhibit an improvement in performance over quantum well counterparts. Strained quantum wires are expected to have even better performance. However, not much is known about the true behavior of strain in actual structures, a parameter critical to their performance.

Field-assisted ionization theory for microscopists

1994 ◽  
Vol 52 ◽  
pp. 820-821
Author(s):  
Patrick P. Camus
Keyword(s):  
Electric Field ◽  
Electron Tunneling ◽  
Ionization Probability ◽  
Critical Distance ◽  
Tunneling Probability ◽  
Field Ionization ◽  
Radius Of Curvature ◽  
Field Evaporation ◽  
A Value ◽  
Ion Emission

The theory of field ion emission is the study of electron tunneling probability enhanced by the application of a high electric field. At subnanometer distances and kilovolt potentials, the probability of tunneling of electrons increases markedly. Field ionization of gas atoms produce atomic resolution images of the surface of the specimen, while field evaporation of surface atoms sections the specimen. Details of emission theory may be found in monographs.Field ionization (FI) is the phenomena whereby an electric field assists in the ionization of gas atoms via tunneling. The tunneling probability is a maximum at a critical distance above the surface,xc, Fig. 1. Energy is required to ionize the gas atom at xc, I, but at a value reduced by the appliedelectric field, xcFe, while energy is recovered by placing the electron in the specimen, φ. The highest ionization probability occurs for those regions on the specimen that have the highest local electric field. Those atoms which protrude from the average surfacehave the smallest radius of curvature, the highest field and therefore produce the highest ionizationprobability and brightest spots on the imaging screen, Fig. 2. This technique is called field ion microscopy (FIM).

Diffraction de réseaux d'indice en cavité Fabry-Pérot

2000 ◽  
Vol 10 (PR8) ◽  
pp. Pr8-251
Author(s):  
L. Menez ◽  
I. Zaquine ◽  
A. Maruani ◽  
R. Frey
Keyword(s):  
Fabry Perot
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