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Abstract

Room-temperature terahertz (THz) detectors with higher performance are necessary for utilizing the THz wave in various sensing, spectroscopy and imaging, but even the best ones in the present are still insufficient for the practical applications. This issue is essential especially in the region around 1 THz at which there exists a large technology gap between microwave and middle-infrared. Therefore, we study to develop an antenna-coupled microbolometer to achieve a high-performance THz detector operated at a room-temperature for sensing at around 1 THz frequency wave. In this paper, we present several important features and results obtained from electromagnetic simulations, which help to design a structure of the antenna and heater to absorb efficiently the power of THz wave.

Bahasa Abstract

Simulasi Elektromagnetik terhadap Mikrobolometer Berantena THz Ganda untuk Pengoperasian pada Suhu Ruang. Detektor terahertz (THz) bersuhu ruangan berkinerja tinggi diperlukan untuk memanfaatkan gelombang THz di dalam berbagai proses penangkapan sinyal, spektroskopi, dan penampilan gambar. Namun, detektor terbaik yang ada sekarang pun masih kurang memadai untuk penggunaan praktis. Kekurangan ini menjadi penting, terutama pada daerah sekitar 1 THz di mana terdapat kesenjangan teknologi yang besar antara gelombang mikro dan inframerah-sedang. Oleh karena itu, kami mengadakan penelitian untuk mengembangkan mikrobolometer berantena ganda untuk menghasilkan detektor THz berkinerja tinggi yang dapat dioperasikan pada suhu ruangan untuk menangkap sinyal pada frekuensi gelombang 1 THz. Di dalam makalah ini, kami menyajikan sejumlah fitur dan hasil penting yang didapat dari simulasi elektromagnetik yang dapat membantu dalam merancang struktur antena dan pemanas sehingga mampu menyerap daya gelombang THz secara efisien.

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