Results 231 to 240 of about 144,490 (294)

Low-loss silicon nitride Kerr-microresonators fabricated with metallic etch masks via metal lift-off. [PDF]

Sci Rep
Colación GM, Rukh L, Buck FH, Drake TE.
europepmc   +1 more source

Decoding Coherent Patterns from Arrayed Waveguides for Free-Space Optical Angle-of-Arrival Estimation. [PDF]

Sensors (Basel)
Zhang J, Zhang H, Yang Z.
europepmc   +1 more source

Complementary and asymmetric tapered bent mid-infrared waveguide arrays for subwavelength-pitch integration and crosstalk minimization. [PDF]

Sci Rep
Zafar H, Pereira MF.
europepmc   +1 more source

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The waveguide invariant for a Pekeris waveguide

The Journal of the Acoustical Society of America, 2021
A closed-form waveguide invariant β for a Pekeris waveguide is derived. It is based on the modal Wentzel-Kramers-Brillouin (WKB) dispersion equation and implicit differentiation, in conjunction with the concept of the “effective boundary depth,” ΔH(θ), where θ is the propagation angle.
Gihoon, Byun, H C, Song
openaire   +2 more sources

Optical Waveguide Refractometers

2005
In this chapter we have illustrated a new method for the determination of the refractive index of liquid samples, based on Cerenkov second harmonic generation from suitable planar waveguides. The method allows the determination of the refractive index in the near infrared by detection in the visible.
MARANGONI, MARCO ANDREA, OSELLAME, ROBERTO, RAMPONI, ROBERTA   +2 more
openaire   +3 more sources

Periodic Waveguides and MQW Waveguide

2015
In research field of optics, diffraction gratings are widely investigated and applied; on the other hand, periodic metal waveguide is familiar to those worked with microwave waveguide. The early studies on periodic waveguide have a profound impact on the development of the waveguide optics.
Xianping Wang, Cheng Yin, Zhuangqi Cao
openaire   +1 more source

Elliptic-Hyperbolical Waveguides

Journal of Electromagnetic Waves and Applications, 2000
Summary: The elliptic-hyperbolical waveguide is analyzed with the method of the separation of variables. A suitable set of eigen-functions is defined and the TE and TM solutions for an elliptic sectoral guide and for the ridged elliptical guide are presented.
AMENDOLA, Gian Domenico, ANGIULLI G, DI MASSA G.   +2 more
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Grating assisted waveguide-to-waveguide couplers

IEEE Photonics Technology Letters, 1998
A new radiation-type waveguide-to-waveguide coupler is proposed. The coupling is realized through gratings embedded on the dielectric waveguides involved. Compared to the conventional hybrid-mode coupler, this type of coupler has advantages in that the two waveguides can be quite dissimilar as well as being separated by large distances.
null Tao Liang, R.W. Ziolkowski
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Grating-Mediated Waveguiding

Physical Review Letters, 2004
We propose a method of optical waveguiding, which relies on Bragg diffractions from a 1D grating that gives rise to waveguiding in the direction normal to the grating wave vector. The waveguide structure consists of a shallow 1D grating that has a bell- or trough-shaped amplitude in the confinement direction.
Cohen, Oren, Freedman, Barak, Fleischer, Jason W., Segev, Mordechai, Christodoulides, Demetrios N.   +4 more
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