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This paper presented the design of subwavelength grating (i.e., nano-grating) for narrow-band and wide-band filter applications. The grating period can be tuned from 700 nm to 1140 nm by a rhombic-shaped thermal actuator array with a driving current of 2.7 mA, achieving a change of transmissivity by 13 dB due to the guided mode resonance. Wide-band of filtering can be obtained by use of another fixed-period...
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