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pro vyhledávání: '"J.M. Vandenberg"'
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Autor:
K. Feder, Mark S. Hybertsen, J.M. Vandenberg, B.S. Falk, K. Evans-Lutterodt, Roosevelt People, John Michael Geary, Muhammad A. Alam, M.W. Focht, R.E. Leibenguth, Theo Siegrist, S.K. Sputz, J. Sheridan-Eng, G.J. Przybyiek, F.S. Walters, J.A. Grenko, L. E. Smith, J. Levkoff, K.G. Glogovsky, L.C. Luther, Michael Geva, D.M. Tennant, D. V. Stampone, S. Shunk, N.N. Tzafaras, L.J. Peticolas, L.J.P. Ketelsen, D.M. Romero, S. N. G. Chu, J.E. Johnson, J.L. Zilko, J.L. Lentz, T.L. Pernell, Joseph Michael Freund, E. D. Isaacs, Liming Zhang, W.A. Gault, C.L. Reynolds
Publikováno v:
IEEE Journal of Quantum Electronics. 36:641-648
We describe the design, fabrication, and performance of a five-element quarterwave-shifted distributed feedback laser array with monolithically integrated spot size converters intended for use as a multiple-wavelength source in dense wavelength-divis
Autor:
S. N. G. Chu, R. Harel, Ken W. West, Loren Pfeiffer, J. D. Wynn, J.M. Vandenberg, Igal Brener
Publikováno v:
physica status solidi (a). 178:365-372
We report on the first observation of coherent terahertz (THz) electromagnetic radiation emitted from an unbiased semiconductor microcavity (MC) at low temperature. The THz radiation is emitted after resonant optical excitation of the two cavity pola
Autor:
T.L. Pernell, Joseph Michael Freund, J.L. Lentz, J.E. Johnson, Roosevelt People, S.K. Sputz, F.S. Walters, S.N.G. Chu, M.W. Focht, L. A. Gruezke, L.J.P. Ketelsen, D. V. Stampone, D.M. Romero, L.J. Peticolas, L. E. Smith, G.J. Przybylek, J.A. Grenko, N.N. Tzafaras, C.L. Reynolds, Muhammad A. Alam, K.G. Glogovsky, J.M. Vandenberg, L.C. Luther
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 6:19-25
We have demonstrated a semiconductor optical amplifier and electroabsorption modulator monolithically integrated with a novel dual-waveguide spot-size converter at the input for low-loss coupling to planar lightguide circuit silica waveguides or clea
Publikováno v:
Surface Science. 267:99-102
We have studied the piezoreflectance (PzR) and photoreflectance (PR) spectra at 77 K of a series of short-period Si/Ge superlattices grown on Ge(001) substrates. These samples are similar to those measured using electroreflectance (40 K) by Pearsall
Autor:
Ronald E. Leibenguth, J.M. Vandenberg, L.A. D'Asaro, Leo M. F. Chirovsky, Keith W. Goossen, William S. Hobson, A.V. Krishnmaoorthy, John Lopata, George J. Zydzik, S. P. Hui, J. D. Wynn, B. Tseng, G. Giaretta
Publikováno v:
IEEE Photonics Technology Letters. 11:500-502
We have fabricated vertical-cavity surface-emitting lasers (VCSELs) which, for the first time, effectively combine a shallow ion implanted aperture, for current confinement under a thin highly conducting lateral current injection layer, and an indepe
Publikováno v:
Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference.
Summary form only given. The appearance of Rabi oscillations in the time domain in semiconductor microcavities (MC) has long been established ever since the first time-resolved reflection measurement from such samples. In these experiments, a short l
Autor:
J.M. Vandenberg, M.N. Khan, Gleb Shtengel, Ellsworth Burrows, S.K. Sputz, Sethumadhavan Chandrasekhar, R.W. Glew, J. Sarathy, Michael Geva, C. A. Burrus, J.A. Grenko
Publikováno v:
OFC/IOOC . Technical Digest. Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication.
We experimentally verify the bandwidth and extinction ratio performance of electroabsorption modulators predicted from our simulation. Modulators with bandwidth exceeding 40 GHz for