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Information Journal Paper

Title

RADIATION ENHANCEMENT IN PLASMONIC BIAS-FREE AND ANTENNA-LESS CW TERAHERTZ PHOTOMIXER EMITTERS ARRAY

Author(s)

 MOHAMMAD ZAMANI MOHAMMAD JAVAD | Moravvej-Farshi Mohammad Kazem | NESHAT MOHAMMAD | Issue Writer Certificate 

Pages

  15-23

Abstract

 We propose a new generation of unbiased (bias-free) antenna-less CW THz PHOTOMIXER emitters array made of asymmetric MSM gratings with subwavelength pitch, operating in optical near-field regime. We take advantage of the size effects in near-field optics and electrostatics to demonstrate the possibility of enhancing the THz power by four orders of magnitude, as compared with a similar array of the same size that operates in the far-field regime. We show that with an appropriate choice of grating parameters in such THz sources the first plas-monic resonant cavity mode in nano-slit be-tween two adjacent MSM can enhance the optical near-field absorption and hence the photo carriers’ generation under the slit in the active medium. These photo carriers, on the other hand, are accelerated by the large built-in electric field sustained under the nano-slits by two dissimilar Schottky barriers to create the de-sired large THz power that is mainly radiated downward. A hybrid numerical simulation method is used to model and analyze these phenomena.

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    APA: Copy

    MOHAMMAD ZAMANI, MOHAMMAD JAVAD, Moravvej-Farshi, Mohammad Kazem, & NESHAT, MOHAMMAD. (2016). RADIATION ENHANCEMENT IN PLASMONIC BIAS-FREE AND ANTENNA-LESS CW TERAHERTZ PHOTOMIXER EMITTERS ARRAY. MODARES JOURNAL OF ELECTRICAL ENGINEERING, 14(4), 15-23. SID. https://sid.ir/paper/687739/en

    Vancouver: Copy

    MOHAMMAD ZAMANI MOHAMMAD JAVAD, Moravvej-Farshi Mohammad Kazem, NESHAT MOHAMMAD. RADIATION ENHANCEMENT IN PLASMONIC BIAS-FREE AND ANTENNA-LESS CW TERAHERTZ PHOTOMIXER EMITTERS ARRAY. MODARES JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2016;14(4):15-23. Available from: https://sid.ir/paper/687739/en

    IEEE: Copy

    MOHAMMAD JAVAD MOHAMMAD ZAMANI, Mohammad Kazem Moravvej-Farshi, and MOHAMMAD NESHAT, “RADIATION ENHANCEMENT IN PLASMONIC BIAS-FREE AND ANTENNA-LESS CW TERAHERTZ PHOTOMIXER EMITTERS ARRAY,” MODARES JOURNAL OF ELECTRICAL ENGINEERING, vol. 14, no. 4, pp. 15–23, 2016, [Online]. Available: https://sid.ir/paper/687739/en

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