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All Journal Makara Journal of Science
Dadin Mahmudin, Dadin
Indonesian Institute of Sciences (LIPI)

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Sensitivity Enhancement of Silicon-on-Insulator Multipath Ring Resonator using Gold Nanodisk for Sensor Application Dicky, Gabriel; Taufiqurrahman, Shidqie; Estu, Topik Teguh; Wijayanto, Yusuf Nur; Manurung, Robeth Viktoria; Mahmudin, Dadin; Anshori, Isa; Daud, Pamungkas
Makara Journal of Science Vol. 24, No. 3
Publisher : UI Scholars Hub

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Abstract

Currently, environmental degradation caused by heavy metals has become a serious concern of many countries. To monitor the concentration of heavy metals in the environment, an in-situ sensor that can measure in real time and has high quality, sensitivity, and flexibility is essential. We proposed a modified multipath ring resonator (MPRR) based on silicon-on-insulator technology with additional gold nanodisk (GND) on top of the ring to increase its sensitivity. To prove the effect of GND on the sensitivity of the modified MPRR, finite-difference time-domain simulations were conducted. Results showed that the average sensitivity of the modified MPRR was 675 nm/RIU, where RIU corresponds to the refractive index unit, higher than that of the unmodified MPRR (171 nm/RIU). Moreover, compared with the single ring structure, the proposed design had better sensitivity. We believe that our proposed approach for the modification of MPRR is suitable for application to optical sensor development.
Co-Authors -, Shobih -, Taufiqqurrachman Abdul Rahim, Muhammad Kamal Adji, R. Priyo Hartono Aminuddin Rizal, Aminuddin arief nur rahman Daud, Pamungkas Desvasari, Winy Dharma, Andri Setya Dicky, Gabriel Erwin Susanto Fajri Darwis, Fajri Goib Wiranto, Goib Isa Anshori Kurniadi, Deni Permana Manurung, Robeth Viktoria Nurwijayanti Putranto, Prasetyo Sulistyaningsih -, Sulistyaningsih Taufiqurrahman, Shidqie Topik Teguh Estu, Topik Teguh Wijaya, R Indra Yudi Yuliyus Maulana, Yudi Yuliyus Yusuf Nur Wijayanto, Yusuf Nur Yuyu Wahyu