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Ahmad Rifqi Md Zain
Researcher at National University of Malaysia
Publications - 77
Citations - 644
Ahmad Rifqi Md Zain is an academic researcher from National University of Malaysia. The author has contributed to research in topics: Photonic crystal & Photonics. The author has an hindex of 10, co-authored 63 publications receiving 543 citations. Previous affiliations of Ahmad Rifqi Md Zain include Harvard University & University of Bristol.
Papers
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Journal ArticleDOI
High Sensitivity Microfiber Interferometer Sensor in Aqueous Solution
S. H. Girei,Hong Ngee Lim,Muhammad Zamharir Ahmad,Mohd Adzir Mahdi,Ahmad Rifqi Md Zain,Mohd Hanif Yaacob +5 more
TL;DR: A high sensitivity sensor for monitoring ammonia nitrogen concentration in water using a tapered microfiber interferometer (MFI) as a sensor platform and a broad supercontinuum laser as the light source is realized.
Journal ArticleDOI
Multilayer CVD-Graphene and MoS₂ Ethanol Sensing and Characterization Using Kretschmann-Based SPR
P. Susthitha Menon,Nur Akmar Jamil,Gan Siew Mei,Ahmad Rifqi Md Zain,Daniel W. Hewak,Chung-Che Huang,Mohd Ambri Mohamed,Burhanuddin Yeop Majlis,Ravi K. Mishra,Srinivasan Raghavan,Navakanta Bhat +10 more
TL;DR: In this article, the Kretschmann-based surface plasmon resonance (K-SPR) sensor was developed using multilayer graphene and molybdenum disulphide (MoS2) structures on a polygonal gold (Au) layer for ethanol detection.
Journal ArticleDOI
Influence of tantalum's crystal phase growth on the microstructural, electrical and mechanical properties of sputter-deposited tantalum thin film layer
Rhonira Latif,Muhammad Fahmi bin Jaafar,Mohd Faizal Aziz,Ahmad Rifqi Md Zain,Jumril Yunas,Burhanuddin Yeop Majlis +5 more
TL;DR: In this paper, the microstructure, surface morphology, crystal orientation and residual stress of the sputter-deposited Ta thin films using direct current (DC) magnetron sputtering technique are studied at 0.4-2-Pa of sputtering pressure, 100-W-250-W of DC sputtering power on bare silicon and silicon dioxide substrate.
Proceedings ArticleDOI
Designing a boost converter of micro energy harvester using thermal and vibration input for biomedical devices
Nor Afidatul Asni Semsudin,Jahariah Sampe,Shabiul Islam,Ahmad Rifqi Md Zain,Dilla Duryha Berhanuddin +4 more
TL;DR: In this paper, a boost converter hybrid micro energy harvester (HMEH) using thermal and vibration of human body for biomedical application is presented, where the inductance is varied from 0.4μH to 1.2μH and 0.9μH for vibration, thermal and hybrid input respectively.
Proceedings ArticleDOI
Graphene-MoS 2 SPR-based biosensor for urea detection
Nur Akmar Jamil,Nurkhairul Bariyah Khairulazdan,P. Susthitha Menon,Ahmad Rifqi Md Zain,Azrul Azlan Hamzah,Burhanuddin Yeop Majlis +5 more
TL;DR: In this article, a surface plasmon resonance (SPR)-based biosensor is proposed, which is based on Kretschmann configuration by considering the efficiency of graphene and MoS 2 layers.