نتایج جستجو برای: te mode

تعداد نتایج: 248622  

Journal: :Applied optics 2010
Ming-Feng Lu Shan-Mei Liao Yang-Tung Huang

We propose a theoretical design for a compact photonic crystal (PC) polarization beam splitter (PBS) based on the multimode interference (MMI) effect. The size of a conventional MMI device designed by the self-imaging principle is not compact enough; therefore, we design a compact PC PBS based on the difference of the interference effect between TE and TM modes. Within the MMI coupler, the depe...

2012
Liangliang Chen Qing Zhao Xiulin Ruan

a r t i c l e i n f o Keywords: Bi2Te3 Nanorod Nanoparticle Nanoplate Raman TEM High-crystalline 0D, 1D and 2D ultra-small Bi 2 Te 3 nanocrystals were synthesized using the pyrolysis of organ-ometallic compound method. The Bi 2 Te 3 nanocrystals was studied with transmission electron microscopy (TEM). Samples synthesized at 35 °C possessed a dominant morphology of 0D nanoparticles or 1D nanorod...

حمیده کاویانی, , عبدالعلی رمضانی, , محمد الماسی کاشی, ,

  Band structure of porous alumina photonic crystal in the Γ X direction was calculated using order-N method . In a comparison of calculated results with experimental data of reflective and absorptive index, the variation of refractive index of alumina in the external region of oxide layer, around the pores were studied. A Gaussian distribution function was adopted for phosphate anions in the e...

2013
H. Odabasi F. L. Teixeira

We show that a rectangular metallic waveguide loaded with metamaterial elements consisting of electric-field-coupled (ELC) resonators placed at the sidewalls can operate well below the cutoff frequency of the respective unloaded waveguide. For the example considered of a waveguide with square cross-section and original TE-mode cut-off frequency at 16.67 GHz (under no loading), a TE-mode passban...

Journal: :Optics letters 2009
Thach G Nguyen Ravi S Tummidi Thomas L Koch Arnan Mitchell

The leakage loss due to TM-TE mode coupling of TM-like whispering gallery mode in silicon-on-insulator (SOI) thin-ridge disk resonators is investigated for the first time to the best of our knowledge. We show that the propagation losses of TM-like mode in thin-ridge SOI disk resonators are significantly impacted by the radius of the disk. This behavior is predicted by a simple phenomenological ...

2006
Marcus Ruser

The creation of TE-mode photons in a three-dimensional perfectly conducting cavity with one resonantly vibrating wall is studied numerically. We show that the creation of TE-mode photons in a rectangular cavity is related to the production of massive scalar particles on a time-dependent interval. The equations of motion are solved numerically which allows to take into account the intermode coup...

2002
J. W. Hughes D. A. Mossessian A. E. Hubbard B. LaBombard E. S. Marmar

On the Alcator C-Mod tokamak [Phys. Plasmas 1, 1511, (1994)], radial profiles of electron temperature (Te) and density (ne) are measured at the plasma edge with millimeter resolution Thomson scattering [Rev. Sci. Instrum. 72, 1107 (2001)]. Edge transport barriers in the high confinement regime (Hmode) exhibit Te, ne pedestals with typical widths of 2–6 mm, with the Te pedestal on average slight...

2003
Muhammad Ajmal Khan Hussain A. Jamid

In this work, a reflection-mode TE pass polarization filter is proposed and analyzed. Guided TE-polarized waves are highly reflected at the input end of this polarizer. On the other hand guided TM-polarized waves experience very low reflection at the same input end. The TE pass polarizer is realized by adding a corrugation in cascade with a simple three layer metal-clad optical waveguide. The m...

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