Observation of x-ray sheet beam from radioisotopes embedded in thin-film waveguide
A specific angular distribution of x rays from 111In embedded in a thin-film waveguide (Au film/Langmuir–Blodgett film/Au substrate) is observed by a non-energy-dispersive two-dimensional detecto...
A specific angular distribution of x rays from 111In embedded in a thin-film waveguide (Au film/Langmuir–Blodgett film/Au substrate) is observed by a non-energy-dispersive two-dimensional detecto...
Intensity dependent mode competition in second harmonic generation in multimode waveguides
Second harmonic generation (SHG) in waveguides which are multimode at the second harmonic exhibit an intensity dependence in both the phase-match wavelength and relative conversion efficiency of the d...
Second harmonic generation (SHG) in waveguides which are multimode at the second harmonic exhibit an intensity dependence in both the phase-match wavelength and relative conversion efficiency of the d...
Air-bridge microcavities
Appl. Phys. Lett. 67, 167 (1995); doi:10.1063/1.114655
Issue Date: 10 July 1995
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We introduce and analyze a new type of high-Q microcavity consisting of a channel waveguide and a one-dimensional photonic crystal. A band gap for the guided modes is opened and a sharp resonant state is created by adding a single defect in the periodic system. An analysis of the eigenstates shows that strong field confinement of the defect state can be achieved with a modal volume less than half of a cubic half-wavelength. We also present a feasibility study for the fabrication of suspended structures with micron-sized features using semiconductor materials. ©1995 American Institute of Physics.
| History: | Received 13 March 1995; accepted 15 May 1995 |
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http://link.aip.org/link/?APPLAB/67/167/1 |
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REFERENCES (9)
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Phys. Today 46(6), 66 (1993) . - E. Yablonovitch,
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- TE modes are defined in a slab waveguide as the modes for which the electric field is polarized parallel to the slab and perpendicular to the direction of propagation. In the waveguide presented above (width to height aspect ratio of 3:1), the modes are not purely TE or purely TM, but rather TE- and TM-like.
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