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Dr. Culala Rajasekharaudayar Kesavulu

Associate Professor , Department of Physics, School of Engineering, Amaravati

Qualification: Ph.D
cr_kesavulu@av.amrita.edu
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Research Interest: Development of RE³⁺-doped glasses, Nano Phosphors and Nanophase Glass-Ceramics for photonic and glass scintillation applications, as well as the growth of 6H-SiC single crystals by the PVT method for high-power semiconductor device applications.

Bio Publications FDP / Workshops Talks Delivered Membership Awards
Bio

Dr. C.R. Kesavulu is an Associate Professor in the Department of Physics at the Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Amaravati Campus, Andhra Pradesh, India. where he joined in May 2025.

He received his Ph.D. degree in Physics from Sri Venkateswara University, Tirupati, AP, India in November 2011. After completing his Ph.D., he worked as a Post-Doctoral Research Fellow and Research Professor for three years in South Korea, and later as a FAPESP Post-Doctoral Fellow- one of the world’s most prestigious fellowships for two years in Brazil. During his Ph.D., he spent nine months as a visiting student under the UKIERI Collaborative Research Programme on “Ultrashort Pulse Laser Waveguide Inscription in Glasses for Integrated Optics” at the School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, Scotland, UK. Moreover, he worked as a Research Associate for four years at the SiC Laboratory, Centre for Materials for Electronics Technology (C-MET), Hyderabad, India, under the DRDO-sponsored research project (SP-35) entitled “Silicon Carbide (SiC) Single Crystal Bulk Growth Process Development for High Power Semiconductor Device Applications.

Furthermore, Dr. C.R. Kesavulu have been recognized in the world’s top 2% scientist’s ranking of researchers in Applied Physics, based on a subject-wise analysis conducted by Stanford University, USA. This is based on the citation matrices and counts the life-time contributions made by scientists for their single-year contributions of 2022, 2023 and 2025 Scopus data, Elsevier Research Intelligence and SciTech strategies.

Publications

Journal Article

Year : 2026

Wo3-induced Crystallization and Enhanced Orange–red Luminescence in Sm3+ -doped Lithium-strontium-bismuth-borate Glasses and Glass-ceramics

Cite this Research Publication : M. Shwetha, Areej S. Alqarni, S.O. Manjunatha, C.R. Kesavulu, N. Srinatha, A. Madhu, WO3-induced crystallization and enhanced orange–red luminescence in Sm3+ -doped Lithium-Strontium-Bismuth-Borate glasses and glass-ceramics, Journal of Alloys and Compounds, Elsevier BV, 2026, https://doi.org/10.1016/j.jallcom.2026.186533

Publisher : Elsevier BV

Year : 2026

Structural and Optical Analysis of Alumino Lead Borate Glasses Doped With Neodymium Oxide: Insights From Judd – Ofelt, Ligand Field and Xps Analysis

Cite this Research Publication : C.S. Pavan Kumar, C.S. Sumukha, N.V. Satwik Prathap, C.R. Kesavulu, N. Sivasankara Reddy, Structural and optical analysis of alumino lead borate glasses doped with neodymium oxide: Insights from Judd – Ofelt, ligand field and XPS analysis, Journal of Alloys and Compounds, Elsevier BV, 2026, https://doi.org/10.1016/j.jallcom.2026.185964

Publisher : Elsevier BV

Year : 2026

Optical and Emission Spectroscopy and Radiation Shielding Properties of Sm3+-doped P2o5 + Bao + La2o3 Glasses

Cite this Research Publication : C.R. Kesavulu, E. Masthanaiah, Ch Basavapoornima, Shobha Rani Depuru, Wisanu Pecharapa, J. Kaewkhao, Thang Bach Phan, C.K. Jayasankar, Optical and emission Spectroscopy and radiation shielding properties of Sm3+-Doped P2O5 + BaO + La2O3 glasses, Radiation Physics and Chemistry, Elsevier BV, 2026, https://doi.org/10.1016/j.radphyschem.2025.113234

Publisher : Elsevier BV

Year : 2025

Unravelling Energy Transfer Mechanisms in Dy3+-doped Li2o + Cao + B2o3 Glasses Through Optical, Luminescence and Jo Analysis

Cite this Research Publication : A. Madhu, C. R. Kesavulu, Areej S. Alqarni, Nagaraj Basavegowda, Assadi Achraf Amir, N. Srinatha, Unravelling energy transfer mechanisms in Dy3+-doped Li2O + CaO + B2O3 glasses through optical, luminescence and JO analysis, The European Physical Journal Plus, Springer Science and Business Media LLC, 2025, https://doi.org/10.1140/epjp/s13360-025-06649-7

Publisher : Springer Science and Business Media LLC

Year : 2025

Tailoring Efficient Green Emission of Tb3+ Activated Li2o-cao-bi2o3-b2o3 Glasses

Cite this Research Publication : A. Madhu, Priya A. Hoskeri, C.R. Kesavulu, Areej S. Alqarni, Namrata Yaduvanshi, A. Anto Jeffery, N. Srinatha, Tailoring efficient green emission of Tb3+ activated Li2O-CaO-Bi2O3-B2O3 glasses, Ceramics International, Elsevier BV, 2025, https://doi.org/10.1016/j.ceramint.2025.11.154

Publisher : Elsevier BV

Year : 2025

Spectroscopic and Theoretical Investigation of Pr3+ Doped Li2o-zno-b2o3 Glasses

Cite this Research Publication : A. Madhu, M. Al-Dossari, Upendra Kumar Kagola, N.S. Abd EL-Gawaad, C.R. Kesavulu, Basavaraj Angadi, Srinatha N, Spectroscopic and theoretical investigation of Pr3+ doped Li2O-ZnO-B2O3 glasses, Journal of Alloys and Compounds, Elsevier BV, 2025, https://doi.org/10.1016/j.jallcom.2024.177583

Publisher : Elsevier BV

Year : 2024

Investigation of Structural, Optical and Luminescence Characteristics of Dy3+-embedded Alkaline Heavy Metal Zincfluoroborophosphate Glasses

Cite this Research Publication : Ch. Basavapoornima, V. Chandrappa, C. R. Kesavulu, R. Lokanadham, Wisanu Pecharapa, Thang Bach Phan, Shobha Rani Depuru, C. K. Jayasankar, Investigation of structural, optical and luminescence characteristics of Dy3+-embedded alkaline heavy metal zincfluoroborophosphate glasses, Journal of Materials Science: Materials in Electronics, Springer Science and Business Media LLC, 2024, https://doi.org/10.1007/s10854-024-12138-x

Publisher : Springer Science and Business Media LLC

Year : 2023

Down-/up-conversion Luminescence Behaviors and Energy Transfer Analysis in Tm3+ and Tm3+/yb3+ Co-doped Tellurite Glasses

Cite this Research Publication : Sharafudeen Kaniyarakkal, Kesavulu Culala Rajasekharaudayar, Rajesh Dagupati, Yang Li, Sabina Drewniak, Zhi Chen, Vijayakumar Sadasivan Nair, Shiju Edappadikkunnummal, Down-/Up-conversion luminescence behaviors and energy transfer analysis in Tm3+ and Tm3+/Yb3+ co-doped tellurite glasses, Inorganic Chemistry Communications, Elsevier BV, 2023, https://doi.org/10.1016/j.inoche.2023.111395

Publisher : Elsevier BV

Year : 2020

Photothermal and Spectroscopic Characterization of Tb3+-doped Tungsten–zirconium–tellurite Glasses

Cite this Research Publication : J. F. M. dos Santos, V. S. Zanuto, C. R. Kesavulu, G. Venkataiah, C. K. Jayasankar, L. A. O. Nunes, T. Catunda, Photothermal and spectroscopic characterization of Tb3+-doped tungsten–zirconium–tellurite glasses, Journal of Applied Physics, AIP Publishing, 2020, https://doi.org/10.1063/5.0020655

Publisher : AIP Publishing

Year : 2020

Spectral Characteristics of Pr3+-doped Lead Based Phosphate Glasses for Optical Display Device Applications

Cite this Research Publication : Ch. Basavapoornima, C.R. Kesavulu, T. Maheswari, Wisanu Pecharapa, Shobha Rani Depuru, C.K. Jayasankar, Spectral characteristics of Pr3+-doped lead based phosphate glasses for optical display device applications, Journal of Luminescence, Elsevier BV, 2020, https://doi.org/10.1016/j.jlumin.2020.117585

Publisher : Elsevier BV

Year : 2019

Physical, Optical and Luminescence Properties of the Dy3+doped Barium Borophosphate Glasses

Cite this Research Publication : Sujita Karki, C.R. Kesavulu, H.J. Kim, J. Kaewkhao, N. Chanthima, S. Kothan, S. Kaewjaeng, Physical, optical and luminescence properties of the Dy3+doped barium borophosphate glasses, Journal of Non-Crystalline Solids, Elsevier BV, 2019, https://doi.org/10.1016/j.jnoncrysol.2019.119483

Publisher : Elsevier BV

Year : 2018

Electronic Refractive Index Changes and Measurement of Saturation Intensity in Cr3+-doped Yag Crystal

Cite this Research Publication : C.R. Kesavulu, R. Moncorgé, M. Fromager, K. Ait-Ameur, T. Catunda, Electronic refractive index changes and measurement of saturation intensity in Cr3+-doped YAG crystal, Optical Materials, Elsevier BV, 2018, https://doi.org/10.1016/j.optmat.2018.02.013

Publisher : Elsevier BV

Year : 2018

Enhanced Visible Emissions of Pr3+-doped Oxyfluoride Transparent Glass-ceramics Containing Srf2 Nanocrystals

Cite this Research Publication : C.R. Kesavulu, C.S. Dwaraka Viswanath, Sujita Karki, Pabitra Aryal, H.J. Kim, C.K. Jayasankar, Enhanced visible emissions of Pr3+-doped oxyfluoride transparent glass-ceramics containing SrF2 nanocrystals, Ceramics International, Elsevier BV, 2018, https://doi.org/10.1016/j.ceramint.2017.10.105

Publisher : Elsevier BV

Year : 2016

Influence of Er3+ Ion Concentration on Optical and Photoluminescence Properties of Er3+-doped Gadolinium-calcium Silica Borate Glasses

Cite this Research Publication : C.R. Kesavulu, H.J. Kim, S.W. Lee, J. Kaewkhao, N. Wantana, S. Kothan, S. Kaewjaeng, Influence of Er3+ ion concentration on optical and photoluminescence properties of Er3+-doped gadolinium-calcium silica borate glasses, Journal of Alloys and Compounds, Elsevier BV, 2016, https://doi.org/10.1016/j.jallcom.2016.04.314

Publisher : Elsevier BV

Year : 2015

Concentration Effect on the Spectroscopic Behavior of Tb3+ Ions in Zinc Phosphate Glasses

Cite this Research Publication : C.R. Kesavulu, Anielle Christine Almeida Silva, M.R. Dousti, Noelio Oliveira Dantas, A.S.S. de Camargo, Tomaz Catunda, Concentration effect on the spectroscopic behavior of Tb3+ ions in zinc phosphate glasses, Journal of Luminescence, Elsevier BV, 2015, https://doi.org/10.1016/j.jlumin.2015.04.012

Publisher : Elsevier BV

Year : 2013

Spectroscopic Properties of Na(Sr,ba)vo4:eu3+ Novel Red-emitting Phosphors for Solid State Lighting Applications

Cite this Research Publication : C.R. Kesavulu, Dong Gi Lee, Soung Soo Yi, Kiwan Jang, Jae Hyung Park, Jae Seung Leem, Yun Hyuk Choi, Yeon Ju Jang, Jung Gon Choi, Spectroscopic properties of Na(Sr,Ba)VO4:Eu3+ novel red-emitting phosphors for solid state lighting applications, Journal of Alloys and Compounds, Elsevier BV, 2013, https://doi.org/10.1016/j.jallcom.2013.01.162

Publisher : Elsevier BV

Year : 2013

Thermal, Vibrational and Optical Properties of Eu3+-doped Lead Fluorophosphate Glasses for Red Laser Applications

Cite this Research Publication : C.R. Kesavulu, K. Kiran Kumar, N. Vijaya, Ki-Soo Lim, C.K. Jayasankar, Thermal, vibrational and optical properties of Eu3+-doped lead fluorophosphate glasses for red laser applications, Materials Chemistry and Physics, Elsevier BV, 2013, https://doi.org/10.1016/j.matchemphys.2013.06.021

Publisher : Elsevier BV

Year : 2011

White Light Emission in Dy3+-doped Lead Fluorophosphate Glasses

Cite this Research Publication : C.R. Kesavulu, C.K. Jayasankar, White light emission in Dy3+-doped lead fluorophosphate glasses, Materials Chemistry and Physics, Elsevier BV, 2011, https://doi.org/10.1016/j.matchemphys.2011.08.037

Publisher : Elsevier BV

Year : 2010

Epr and Optical Absorption Studies of Fe3+ Ions in Sodium Borophosphate Glasses

Cite this Research Publication : R.S. Muralidhara, C.R. Kesavulu, J.L. Rao, R.V. Anavekar, R.P.S. Chakradhar, EPR and optical absorption studies of Fe3+ ions in sodium borophosphate glasses, Journal of Physics and Chemistry of Solids, Elsevier BV, 2010, https://doi.org/10.1016/j.jpcs.2010.09.013

Publisher : Elsevier BV

Year : 2010

Epr, Optical Absorption and Photoluminescence Properties of Cr3+ Ions in Lithium Borophosphate Glasses

Cite this Research Publication : C.R. Kesavulu, R.P.S. Chakradhar, R.S. Muralidhara, J.L. Rao, R.V. Anavekar, EPR, optical absorption and photoluminescence properties of Cr3+ ions in lithium borophosphate glasses, Journal of Alloys and Compounds, Elsevier BV, 2010, https://doi.org/10.1016/j.jallcom.2010.02.119

Publisher : Elsevier BV

Year : 2009

EPR and photoluminescence studies on lithium-potassium borophosphate glasses doped with Mn2+ ions

Cite this Research Publication : C.R. Kesavulu, R.S. Muralidhara, J.L. Rao, R.V. Anavekar, R.P.S. Chakradhar, EPR and photoluminescence studies on lithium-potassium borophosphate glasses doped with Mn2+ ions, Journal of Alloys and Compounds, Elsevier BV, 2009, https://doi.org/10.1016/j.jallcom.2009.07.040

Publisher : Elsevier BV

FDP / Workshops
  • Presented poster presentation on “Non-linear phenomenon of high vs low-phonon glasses” Complexity and Nonlinear Dynamics in Science, Technology, Engineering & Mathematics (STEM), CNLDS-2023, 5-7 June 2023, Indian Institute of Technology Hyderabad (IITH)
  • Presented poster presentation and got Best Poster Award on “Investigation of Impurities in High Pure 6H-SiC Single Crystals”; International Conference on Purification and Recycling of Electronic Materials (ICPREM-2020), March 8-10, 2020, IICT, Tarnaka, Hyderabad, Telangana.
  • Delivered talk on “Concentration quenching effect on the photoluminescence studies of Dy3+-doped yttrium calcium silica borate glasses” The 6th International Workshop on Photoluminescence in Rare Earths: Photonic Materials and Devices, June 8-10, 2016, Greenville, South Carolina, United States of America (USA).
Talks Delivered

Research Talks Delivered

  • Delivered talk on “Determination of pump quantum efficiency of Tb3+ absorption line hidden by host tellurite glasses absorption by Thermal Lens; 18th International Conference on Luminescence (ICL-2017), August 27th to September 1st 2017, Joao Pessoa, Paraiba, Brazil.
  • Delivered talk on “Enhanced visible emissions of Pr3+-doped oxyfluoride transparent glass- ceramics containing SrF2 nanocrystals” Korean Physical Society Spring Meeting- 2017, 19-21st April 2017, Daejeon Convention Centre, Daejeon, South Korea.
  • Delivered talk on “Time resolved Z-scan and thermal lens studies in Nd3+-doped zinc tellurite-based glasses” International Conference on Advances in Glass Science and Technology (ICAGST-2017), 19-25, January, 2017; ICG & CGCRI, Kolkata.
Membership
  1. Life Membership of Brazilian Physics Society (SBF), Brazil.
  2. Life Membership of Korea Physical Society (KPS), Republic of Korea.
  3. Life Membership of Rare Earths Association of India (REAI), Mumbai, India.
  4. Editorial Board Membership for “International Journal of Innovative Research in Applied Sciences and Engineering (IJIRASE)” (www.ijirase.com).
Awards
  1. BK21-Post-Doctoral Fellow award in the year of 2012, from Department of Physics, Chungbuk National University, Cheongju-361-763, Republic of Korea.
  2. FAPESP- Post-Doctoral Research Fellow award in the year of 2013, from Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, USP C.P. 369, CEP 13560-970, Sao Carlos, SP, Brazil.
  3. Post-Doctoral Research Fellow award in the year of 2017, from Department of Physics (Radiation Science Research Institute), Kyungpook National University, Daegu-41566, Republic of Korea.
  4. Exceptional Researcher Award in the year of 2024, from Institute of Aeronautical Engineering (IARE), Hyderabad, India.
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