Design and optimization of bowtie nanoantenna for electromagnetic field enhancementUsman Khan Khalil, Waqas Farooq, Javed Iqbal, Syed Zain Ul Abideen Kazmi, Adnan Daud Khan, Anees Ur Rehman and Saba AyubEur. Phys. J. Plus, 136 7 (2021) 754DOI: https://doi.org/10.1140/epjp/s13360-021-01702-7