Zobrazeno 1 - 10
of 29
pro vyhledávání: '"B. S. Dennis"'
Autor:
David A. Czaplewski, Michael Haftel, Daniel Lopez, B. S. Dennis, Vladimir A. Aksyuk, Girsh Blumberg
Publikováno v:
Nature Photonics. 9:267-273
Researchers exploit the strong dependence of gap-plasmon phase velocity on gap width to make a compact phase-modulator. An electromechanically variable gap size enables a 23-μm-long non-resonant modulator with moderate losses.
Autor:
Irene Dujovne, A. Pinczuk, L. N. Pfeiffer, B. S. Dennis, K. W. Kest, Israel Bar-Joseph, Cyrus F. Hirjibehedin
Publikováno v:
Solid State Communications. 127:799-803
Strong resonant enhancements of inelastic light scattering from the long wavelength inter-Landau level magnetoplasmon and the intra-Landau level spin wave excitations are seen for the fractional quantum Hall state at $\nu = 1/3$. The energies of the
Autor:
Pablo Ignacio Tamborenea, A. Pinczuk, Annette S. Plaut, Ken West, B. S. Dennis, L. N. Pfeiffer
Publikováno v:
Physical Review B. 55:9282-9285
Publikováno v:
Applied Physics Letters. 85:5625-5627
Very dilute two-dimensional hole systems were probed by resonant inelastic light scattering. This extremely high mobility system occurs in AlxGa1−xAs∕GaAs quantum wells designed specifically for their light insensitivity. We find that the depolar
Publikováno v:
Semiconductor Science and Technology. 9:1865-1870
Recent resonant inelastic light scattering experiments in the fractional quantum Hall regime highlight the power of the method in studies of election-electron interactions in semiconductors of reduced dimensions. We review here light scattering exper
Autor:
Kenneth D. West, B. S. Dennis, Javier G. Groshaus, Loren Pfeiffer, Dwipesh Majumder, Jainendra K. Jain, Irene Dujovne, Aron Pinczuk, Trevor David Rhone, Cyrus F. Hirjibehedin, Yann Gallais, Sudhansu S. Mandal
Publikováno v:
Physical review letters. 106(9)
Even though composite fermions in the fractional quantum Hall liquid are well established, it is not yet known up to what energies they remain intact. We probe the high-energy spectrum of the 1/3 liquid directly by resonant inelastic light scattering
Autor:
Carlos Tejedor, S. Schmitt-Rink, Catherine Kallin, Ken W. West, Luis Brey, L. N. Pfeiffer, Don Heiman, A. Pinczuk, B. S. Dennis
Publikováno v:
Physical Review Letters. 68:3623-3626
Exchange enhancements of the spin-polarized 2D electron gas are determined for the first time by inelastic light scattering from spin-flip inter-Landau-level and intersubband excitations. In the magnetic quantum limit v=1 the splitting between long w
Publikováno v:
Physical Review B. 44:4657-4660
Using high-pressure Raman scattering, we have directly measured the pressure dependence of the in-plane superexchange interaction J in antiferromagnetic ${\mathrm{La}}_{2}$${\mathrm{CuO}}_{4}$ between 1 bar and 100 kbar. We find that J has a substant
Publikováno v:
The Journal of Chemical Physics. 92:1320-1328
We describe the use of Raman scattering as a technique for measuring the concentration of binary liquid mixtures inside a porous medium. The technique is demonstrated by measuring the concentration of mixtures of 2,6‐lutidine and water inside the p
Autor:
Y, Gallais, T H, Kirschenmann, I, Dujovne, C F, Hirjibehedin, A, Pinczuk, B S, Dennis, L N, Pfeiffer, K W, West
Publikováno v:
Physical review letters. 97(3)
Spin excitations from a partially populated composite fermion level are studied above and below nu=1/3. In the range 2/7nu2/5, the experiments uncover significant departures from the noninteracting composite fermion picture that demonstrate the incre