A Novel Type of Phase Grating for THz Beam Multiplexing
نویسندگان
چکیده
Phase gratings have become popular as local oscillator beam multiplexers for array receivers in the submillimeter wavelength domain. In general, binary or multilevel gratings, also known as Dammann gratings, are used [1][2][3][4]. Dammann gratings can be designed and manufactured easily and perform satisfactorily for most one{dimensional applications. Two{dimensional dispersion, however, is much more diÆcult to achieve. This is mainly due to the fact that a two{dimensional multilevel structure can not be machined easily.
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تاریخ انتشار 2007