TITLE

X-ray and optical characterization of multilayer AlGaAs waveguides

AUTHOR(S)
Leo, G.; Caldarella, C.; Masini, G.; De Rossi, A.; Assanto, G.; Durand, O.; Calligaro, M.; Marcadet, X.; Berger, V.
PUB. DATE
December 2000
SOURCE
Applied Physics Letters;12/11/2000, Vol. 77 Issue 24
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Effective-index measurements in multilayer AlGaAs waveguides are used in conjunction with x-ray reflectometry to yield refractive indices and thicknesses of the constituent layers, with the accuracy required by parametric interactions in guided-wave and photonic-band-gap structures. © 2000 American Institute of Physics.
ACCESSION #
4413683

 

Related Articles

  • Refractive optics using lithium metal. Arms, D. A.; Dufresne, E. M.; Clarke, R.; Dierker, S. B.; Pereira, N. R.; Foster, D. // Review of Scientific Instruments;Mar2002, Vol. 73 Issue 3, p1492 

    Thanks to its low x-ray absorption, lithium should be the material of choice for x-ray refractive lenses. This article discusses some of the measurements done to verify lithium’s relevant properties. Both x-ray transmission and refraction are consistent with expectations. The lens gain...

  • Application of absorption and refraction matching techniques for diffraction enhanced imaging. Hasnah, M.; Oltulu, O.; Zhong, Z.; Chapman, D. // Review of Scientific Instruments;Mar2002, Vol. 73 Issue 3, p1657 

    Diffraction enhanced x-ray imaging (DEI) has simultaneous contrast sources from absorption, x-ray refraction gradients, and scatter-rejection (extinction). The combination of these contrast mechanisms generally allows many more features in objects to be observed compared to conventional...

  • The effect of substrate orientation on the properties of low temperature molecular beam epitaxial... O'Hagan, S.; Missous, M. // Journal of Applied Physics;9/1/1997, Vol. 82 Issue 5, p2400 

    Focuses on the results of comparative studies of low temperature growth of gallium arsenide on (100) substrates and on (111)A, (111)B, (311)A, and (311)B surfaces. Reduction of excess As incorporation into layers; Lattice parameter and lower absorption in the near-band-edge; Electrical...

  • Electromodulation reflectance of low temperature grown GaAs. Hsu, T.M.; Sung, J.W.; Lee, W. C. // Journal of Applied Physics;9/1/1997, Vol. 82 Issue 5, p2603 

    Studies low temperature grown gallium arsenide by electromodulation reflectance spectroscopy. Reflectance spectra; Arsenic antisite defects; Absence of a signal for a rich defect sample.

  • Hole mobilities and the effective Hall factor in p-type GaAs. Wenzel, M.; Irmer, G. // Journal of Applied Physics;6/15/1997, Vol. 81 Issue 12, p7810 

    Presents evidences proving effective Hall factor in p-type gallium arsenide as larger than values reported. Theoretical drift and theoretical Hall mobilities as functions of temperature; Theoretical Hall factors in the heavy and light hole bands; Strong dependence of the Hall mobility on Hall...

  • Multi-prism x-ray lens. Cederstro¨m, Bjo¨rn; Lundqvist, Mats; Ribbing, Carolina // Applied Physics Letters;8/19/2002, Vol. 81 Issue 8, p1399 

    Refractive x-ray lenses with a triangular surface profile have been used to focus a synchrotron beam to sub-µm line width. These lenses are free from spherical aberration and work in analogy with one-dimensional focusing parabolic compound refractive lenses. However, the focal length can be...

  • A novel type of x-ray interferometer. Kettig, O.; Backe, H.; Clawiter, N.; Dambach, S.; Doerk, Th.; Elbai, N.; Euteneuer, H.; Hagenbuck, F.; Holl, P.; Jacobs, H.; Kaiser, K.-H.; Kemmer, J.; Kerschner, Th.; Kube, G.; Koch, H.; Lauth, W.; Mannweiler, H.; Mattha¨y, H.; Scho¨pe, H.; Schroff, D. // AIP Conference Proceedings;2000, Vol. 506 Issue 1, p669 

    Novel types of interferometers have been developed at the Mainz Microtron MAMI with which the complex index of refraction of thin self-supporting foils can be measured. For the vacuum ultraviolet and soft x-ray region the interferometer consists of two collinear undulators, between which a foil...

  • Live X-ray refraction imaging using vertically and horizontally wide X-rays. Matsui, Junji; Kagoshima, Yasushi; Tsusaka, Yoshiyuki; Yokoyama, Kazushi; Takai, Kengo; Takeda, Shingo; Yamasaki, Katsuhito // AIP Conference Proceedings;2000, Vol. 506 Issue 1, p565 

    Since the synchrotron X-rays are intense enough even after the sequential expansion of the X-ray beam by successive asymmetric Bragg reflections, live refraction images of internal structure for biological materials can be seen on an X-ray image sensor. Video images of some living insects or a...

  • Development of Compound Refractive Lenses for x-rays. Beguiristain, H. R.; Piestrup, M. A.; Pantell, R. H.; Gary, C. K.; Cremer, J. T.; Tatchyn, R. // AIP Conference Proceedings;2000, Vol. 521 Issue 1, p258 

    One-dimensional and rotationally axisymmetric two-dimensional focusing of x-rays by plastic Compound Refractive Lens (CRL) systems are demonstrated and theoretical aspects behind the design of x-ray CRLs are presented in this report. X-rays between 8 and 19.5 keV were focused by cylindrical CRLs...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics