Fiber Optic Ring Resonator Sensor Detection Technique Based on Spectral Intensity Integration

by Purnomo Sidi Priambodo, Sasono Raharjo, Gunawan Witjaksono, Djoko Hartanto
Published 2015-04-01

Optimizing Coupling Region as Sensing Area in Optical Ring Resonator Sensor Applications

by Purnomo Sidi Priambodo, Sasono Rahardjo, Gunawan Witjaksono, Djoko Hartanto
Published 2015-10-01

A Highly Sensitive Room Temperature CO₂ Gas Sensor Based on SnO₂-rGO Hybrid Composite

by Zhi Yan Lee, Huzein Fahmi bin Hawari, Gunawan Witjaksono bin Djaswadi, Kamarulzaman Kamarudin
Published 2021-01-01

A Review on the Development of Tunable Graphene Nanoantennas for Terahertz Optoelectronic and Plasmonic Applications

by Zaka Ullah, Gunawan Witjaksono, Illani Nawi, Nelson Tansu, Muhammad Irfan Khattak, Muhammad Junaid
Published 2020-03-01

A Hybrid Model Based on Constraint OSELM, Adaptive Weighted SRC and KNN for Large-Scale Indoor Localization

by Hengyi Gan, Mohd Haris Bin Md Khir, Gunawan Witjaksono Bin Djaswadi, Nordin Ramli
Published 2019-01-01

FPGA-Based Lightweight Hardware Architecture of the PHOTON Hash Function for IoT Edge Devices

by Mohammed Omar Awadh Al-Shatari, Fawnizu Azmadi Hussin, Azrina Abd Aziz, Gunawan Witjaksono, Xuan-Tu Tran
Published 2020-01-01

Experimental Investigation of a Planar Antenna with Band Rejection Features for Ultra-Wide Band (UWB) Wireless Networks

by Muhammad Irshad Khan, Muhammad Irfan Khattak, Gunawan Witjaksono, Zaka Ullah Barki, Sadiq Ullah, Imran Khan, Byung Moo Lee
Published 2019-01-01

Dynamic Absorption Enhancement and Equivalent Resonant Circuit Modeling of Tunable Graphene-Metal Hybrid Antenna

by Zaka Ullah, Illani Nawi, Gunawan Witjaksono, Nelson Tansu, Muhammad Irfan Khattak, Muhammad Junaid, Muhammad Aadil Siddiqui, Saeed Ahmed Magsi
Published 2020-06-01

Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance

by Muhammad Junaid, M. H. Md Khir, Gunawan Witjaksono, Nelson Tansu, Mohamed Shuaib Mohamed Saheed, Pradeep Kumar, Zaka Ullah, Asfand Yar, Fahad Usman
Published 2020-08-01

A Review on Graphene-Based Light Emitting Functional Devices

by Muhammad Junaid, M. H. Md Khir, Gunawan Witjaksono, Zaka Ullah, Nelson Tansu, Mohamed Shuaib Mohamed Saheed, Pradeep Kumar, Lee Hing Wah, Saeed Ahmed Magsi, Muhammad Aadil Siddiqui
Published 2020-09-01