Category Articles

Asian Journal of Physics Vol. 33, Nos 9 & 10 (2024) 574-582 Theoretical analysis on the beam-wave interaction of a THz gyrotron oscillator Ashutosh SinghDepartment of Physics, Mahesh Prasad Sinha Science College, Babasaheb Bhimrao Ambedkar Bihar University, Muzaffarpur-843 146, Bihar,…

Asian Journal of Physics Vol. 33, Nos 9 & 10 (2024) 563-573 Conversion of dominant rectangular-waveguide-mode to azimuthally symmetric circular-waveguide-mode in sub-terahertz frequency band Vishal Kesari1, Sarah Farheen2 and Swappnal Panigrahi2 1Microwave Tube Research and Development Centre, Defence Research and…

Asian Journal of Physics Vol. 33, Nos 9 & 10 (2024) 541-561 Sub-terahertz high-power microfabricated folded-waveguide traveling-wave tubes: needs and challenges in realization Anurag Srivastava and Subrata Kumar DattaMicrowave Tubes Research & Development Centre, DRDO, Bangalore-560 013, IndiaThis paper is…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 287-306 Medical diagnostics using gas in scattering media absorption spectroscopy GASMAS Katarina Svanberg1,2 and Sune Svanberg3,21Division of Oncology, Department of Clinical Sciences, Lund University Hospital, SE-221 85 Lund, Sweden2Lund…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 269-286 A secure image encryption method using toroidal vortex phase masks, QR decomposition, and gyrator transform Hukum Singh1 and Kehar Singh1,21Department of Applied Sciences, The NorthCap University, Gurugram-122 017,…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 253-268 Cavity opto-mechanics in whispering gallery mode resonators: Route to chaos Gabriele Frigenti, Daniele Farnesi, Stefano Pelli, Gualtiero Nunzi Conti, and Silvia SoriaCNR-IFAC Institute of Applied Physics “N.Carrara”, 50019…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 239-251 On the optothermal properties of vanadium dioxide from the visible to the infrared R Li Voti, M Bertolotti, G Leahu, E Petronijevic, G M Cesarini, M C Larciprete,…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 219-238 Atmospheric turbulence and its optical manifestations Victor Nosov, Vladimir Lukin, Eugene Nosov and Andrei TorgaevV E Zuev Institute of Atmospheric Optics SB RAS, 1 Academician Zuev sq., Tomsk…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 205-217 Phase space tomography for measuring partially coherent fields of light sources Rui Qi1 and Miguel A Alonso2,31Department of Physics and Optical Science, The University of North Carolina at…

Asian Journal of Physics Vol. 33, Nos 3 & 4 (2024) 197-204 Geometric phase in dual-beam interference Ari T FribergCenter for Photonics Sciences, University of Eastern Finland (UEF), P.O. Box 111, FI-80101 Joensuu, Finland Dedicated to Professor Anna Consortini for…