Book Chapters:
(1)- Nikita Choudhary, Anjani Kumar Tiwari, and Nitish Kumar Gupta† "Active Tunability in Resonant Metamaterials Using Phase Transitions" Handbook of Metamaterial Antennas, Measurement and Characterizations, Springer Nature Singapore (2025) link
In International Conferences:
(33)- Jyoti Mandal, Chirag Lawaniya, and Anjani Kumar Tiwari, ``Bio-inspired Structural Color Tuning in Liquid Crystal Elastomer Film Coated with 2D Photonic Crystal Nanostructure,'' Photonics 2026, IIT, Hyderabad (09 - 13 Dec. 2026).
(32)- Diksha Sharma†, Nikita Choudhary, and Anjani Kumar Tiwari, "On-chip Random Lasing from the Collection of Quasi-monodispersed Microdroplets," FiO LS 2026, Rochester, New York (27 Sept. - 01 Oct. 2026)
(31)- Nikita Choudhary†, Diksha Sharma, and Anjani Kumar Tiwari, "Light-driven Soft Robot integrated with FRET-assisted Random Lasing Tip," FiO LS 2026, Rochester, New York (27 Sept. - 01 Oct. 2026)
(30)- Jyoti Mandal†, Nitish Kumar Gupta, and Anjani Kumar Tiwari, "Selective Topological-Interface-State Lasing in Disordered Photonic Heterostructures," FiO LS 2026, Rochester, New York (27 Sept. - 01 Oct. 2026)
(29)- Prahlad Madhavan Veervalli, Saksham Aryan, Ardra Muriyankandathil, Anjani Kumar Tiwari, and Nitish Kumar Gupta†, "Variational Quantum Eigensolver Benchmarking of the Su-Schrieffer-Heeger Model: Ansatz-Conditional Bulk-Spectrum Resolution," International Conference on Emerging Techniques in Computational Intelligence (ICETCI 2026), DOI: 10.1109/ICETCI71772.2026.11710776, Mahindra University, Hyderabad (Contributory Talk) (19 - 22 August, 2026) link
Nitish Won the Best Presentation Award for this work.
(28)- Nikita Choudhary, Diksha Sharma, Jyoti Mandal, and Anjani Kumar Tiwari†, "Remotely controlled inching millibot integrated with an optical source," DOI: 10.1109/PIERS-Spring66516.2025.11276413, Liquid Crystals Optics and Photonic Devices II, SPIE Photonics Europe, Strasbourg, France (13 - 16 April, 2026) link
(27)- Diksha Sharma, Jyoti Mandal, and Anjani Kumar Tiwari†, "Quasi-bound state in continuum induced lasing in a blazed grating," JSAP Spring Meeting, Tokyo, Japan (15 - 18 March, 2026)
(26)- Nitish Kumar Gupta†, and Anjani Kumar Tiwari, "Experimental Markers for Photonic Stopband Topological Character Identification: Polarization-Discriminated Dispersion and Its Applications," DOI: 10.1109/PIERS-Spring66516.2025.11276413, Photonics & Electromagnetics Research Symposium-Spring (PIERS), Abu Dhabi (04-08 May, 2025) link
(25)- Diksha Sharma, Nitish Kumar Gupta, and Anjani Kumar Tiwari†, "Gain-Loss Engineering and Study of Modal Interactions in Plasmonic-Photonic Heterostructures," 16th edition of International Conference on Fiber Optics and Photonics, IIT Kharagpur (12-15 December, 2024)
(24)- Nikita Choudhary, Diksha Sharma, Saikat Maity, Deependra Singh Gaur, Nitish Kumar Gupta, and Anjani Kumar Tiwari†, "Polarization-Resolved Speckle Correlations in Scattering Birefringent Films,'' DOI: 10.1109/MAPCON61407.2024.10923571, IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), Hyderabad International Convention Centre, (09–13 December, 2024) link
(23)- Nikita Choudhary, Deependra Singh Gaur, and Anjani Kumar Tiwari†, "Grating Embedded Metal-based Self-reference Sensor," 71th JSAP Spring Meeting, Tokyo, Japan (Contributory Talk) (22-25 March 2024).
(22)- Nikita Choudhary, and Anjani Kumar Tiwari†, "Numerical investigation of dual-band metamaterial absorber," DOI: https://doi.org/10.1007/978-981-97-4760-3_9, Photonics 2023, IISc Bangalore (Contributory Talk) (05-08 July 2023) link
(21)- Nitish Kumar Gupta, Anjani Kumar Tiwari†, Harshawardhan Wanare, and S. Anantha Ramakrishna, "Polarization speckle generation & control of angular memory effect in optically anisotropic media," ISBN: 978-1-957171-05-0, Paper JW3B-89, CLEO/San Jose, California, USA (15-20 May 2022) link
(20)- N. K. Gupta†, A. Chopra, M. Kumar, A. K. Tiwari, S. S. Pal, H. Wanare, and S. A. Ramakrishna, "Topological surface state by hierarchical concatenation of Photonic stopbands," DOI: 10.1109/WRAP54064.2022.9758314, IEEE WRAP 2022, IIT Mumbai (Contributory Talk) (04 - 06 March 2022) link
(19)- Anjani Kumar Tiwari†, Vivek Kumar Singh, and S. Anantha Ramakrishna, "Light-driven graphene-based multifunctional actuator," ISBN: 978-1-943580-91-0, Paper SW2F.5, CLEO/San Jose, California, USA (Contributory Talk) (09-14 May 2021) link
(18)- Anjani Kumar Tiwari†, Rajesh Kumar, and S. Anantha Ramakrishna, "Surface plasmon resonance mediated random lasing in thin film metamaterials," ISSN: 978-1-943580-84-2, OSA Laser Congress, Washington, D.C. United States (13 - 16 Oct. 2020) link
(17)- Nitish Kumar Gupta†, Anjani Kumar Tiwari, Harshawardhan Wanare, and S. Anantha Ramakrishna, "Unidirectional narrowband perfect absorption in quasi-random structures - interplay of gap states and Tamm plasmon modes,'' DOI: 10.1109/IPC47351.2020.9252319, IEEE Photonics Conference, Vancouver, Canada (Contributory Talk) (28 Sept. - 01 Oct. 2020) link
(16)- Anjani Kumar Tiwari†, Rabisankar Samanta, S. Ajmal, and Sushil Mujumdar, "Random lasing from amplifying electrostatic spray of charged microjets," DOI: 10.1109/WRAP47485.2019.9013680, IEEE WRAP 2019, IIT Guwahati (13 - 14 Dec. 2019) link
(15)- Rajesh Kumar, Anjani Kumar Tiwari†, and S. Anantha Ramakrishna, "Lasing based on periodically patterned anisotropic thin film metamaterial," DOI: 10.1109/WRAP47485.2019.9013730, IEEE WRAP 2019, IIT Guwahati (13 - 14 Dec. 2019) link
(14)- Saleem Shaik†, Anjani Kumar Tiwari, and S. Anantha Ramakrishna, "Enhanced lasing in metal-insulator-metal waveguide slab based on gold coated nanoporous anodic alumina membrane," DOI: 10.1109/WRAP47485.2019.9013949, IEEE WRAP 2019, IIT Guwahati (13 - 14 Dec. 2019) link
(13)- Anjani Kumar Tiwari†, Deepak Biswal, and S. Anantha Ramakrishna, "Tunable metamaterial absorber based on liquid crystal elastomer," Proceedings of Photonics-2018, ISBN: 978-93-88653-41-1, International Conference on Fiber Optics and Photonics, IIT Delhi (Contributory Talk) (12 - 15 Dec. 2018) link
Won the Excellence in Oral Presentation award at Photonics 2018.
(12)- Saleem Shaik†, Anjani Kumar Tiwari, and S. Anantha Ramakrishna, "Nanoporous alumina as an optofluidic alcohol sensor," Proceedings of Photonics-2018, ISBN: 978-93-88653-41-1, International Conference on Fiber Optics and Photonics, IIT Delhi (12 - 15 Dec. 2018) link
(11)- Anjani Kumar Tiwari†, Saleem Shaik, and S. Anantha Ramakrishna, "Coherent emission in optically transparent nanoporous anodic alumina films," DOI: 10.1109/WRAP.2017.8468586, IEEE WRAP 2017, Mahindra Ecole Centrale, Hyderabad, India (18 - 19 Dec. 2017) link
(10)- Anjani Kumar Tiwari†, Lorenzo Pattelli, Renato Torre, and Diederik Wiersma, "Remote control of liquid crystal elastomer random laser," DOI: 10.1109/WRAP.2017.8468557, IEEE WRAP 2017, Mahindra Ecole Centrale, Hyderabad, India (18 - 19 Dec. 2017) link
(9)- Anjani Kumar Tiwari†, "Resolving the otherwise unresolved Fabry-Perot modes via random intensity fluctuations," International Workshop on Complex Photonics, TIFR, Mumbai, India (Invited Talk) (22 - 24 January 2017) link
(8)- Sushil Mujumdar†, Anjani K. Tiwari, K. Shadak Alee and Ravitej Uppu, "Amplifying periodic-on-average random systems: Route to Anderson-localization random lasers," ISBN: 978-1-55752-882-7, Paper M3D.2, International Conference on Fiber Optics and Photonics, IIT Kharagpur, India (13 - 16 Dec. 2014) link
(7)- Sushil Mujumdar† and Anjani Kumar Tiwari, "Collective resonances and lasing induced by photon localization in aperiodically arranged microresonators," MRS Spring Meeting, San Francisco, California, USA (21 - 25 April 2014) link
(6)- Anjani Kumar Tiwari and Sushil Mujumdar†," Photon-localization induced random lasing from an amplifying periodic-on-average random system," DOI: 10.1109/CLEOE-IQEC.2013.6801484, CLEO/Europe, Munich, Germany (12 - 16 May 2013) link
(5)- Anjani Kumar Tiwari, Girish Kulkarni, and Sushil Mujumdar†, "Resonant multilayers for frequency control of photon localization random lasers," 4th International Topical Meeting on Nanophotonics and Metamaterials, Nanometa-2013
(4)- Anjani Kumar Tiwari, Ravitej Uppu, and Sushil Mujumdar†, "Lasing from quasi-one-dimensional random lattice of multiple resonators," DOI: 10.1364/PHOTONICS.2012.TPo.14, International Conference on Fiber Optics and Photonics, IIT Madras, India (9 - 12 Dec. 2012) link
Won the first prize for the Best Student Paper Award given by OSA. link
(3)- Rajesh V. Nair†, Anjani K. Tiwari, Sushil Mujumdar, and B. N. Jagatap, "Signature of Band-Edge-Induced Lasing Observed in Self-assembled Photonic Crystals," DOI: 10.1364/PHOTONICS.2012.W1A.3, International Conference on Fiber Optics and Photonics, IIT Madras, India (9 - 12 Dec. 2012) link
(2)- Ravitej Uppu, Anjani Kumar Tiwari, and Sushil Mujumdar†, "Coherent random lasing in diffusive resonant media," AIP Conf. Proc., 1398, 103-105 (2011) link
(1)- Anjani Kumar Tiwari†, Balu Chandra, Ravitej Uppu, and Sushil Mujumdar, "Coherent Emission from a Disordered Array of Amplifying Scatterers," 3rd International Conference on Current Developments in Atomic, Molecular, Optical, and Nano Physics, University of Delhi, India (14 - 16 Dec. 2011)
In National Conferences:
(18)- Jyoti Mandal, Chirag Lawaniya, and Anjani Kumar Tiwari, "Stimuli-Responsive Tunable Structural Color in Hybrid Liquid Crystal Elastomer-Photonic Crystal Films," 33rd National Conference on Liquid Crystals (NCLC 2026), Sharda University, Greater Noida (19 - 21 Nov. 2026).
(17)- Nikita Choudhary, Diksha Sharma and Anjani Kumar Tiwari, "V-shaped millibot integrated with FRET-assisted random lasing tip," 49th Symposium of OSI: Frontiers in Optics and Photonics (FOP-2026), Jointly organized by IITD & CSIR-NPL, (25 - 28 Sept, 2026)
Nikita Won the Best Poster Presentation Award for this work.
(16)- Diksha Sharma, Nikita Choudhary and Anjani Kumar Tiwari, "On-chip random lasing from clusters of quasi- monodispersed microdroplets in amplifying medium," 49th Symposium of OSI: Frontiers in Optics and Photonics (FOP-2026) (Contributory talk), Jointly organized by IITD & CSIR-NPL, (25 - 28 Sept, 2026)
(15)- Shubhrakanta Panda, Anjani Kumar Tiwari and Vipul Rastogi, "Monte Carlo Analysis of MgO Nanoparticles dispersed in PDMS Matrix for Passive Daytime Radiative Cooling," 49th Symposium of OSI: Frontiers in Optics and Photonics (FOP-2026) (Contributory talk), Jointly organized by IITD & CSIR-NPL, (25 - 28 Sept, 2026)
(14)- Anjani Kumar Tiwari, "Optical properties of light-driven smart microstructures," Optics and Photonics Research Conference-2026 (Invited talk), IIT Delhi (22 June 2026)
(13)- Anjani Kumar Tiwari, ''Liquid Crystal Elastomer-Based Smart Microstructures,'' International Conference on Photonics and Emerging Materials for Futuristic Technology (PEMFT-2025) (Invited talk), CCS University Meerut (13 - 15 Nov. 2025)
(12)- Nikita Choudhary, Diksha Sharma, Saikat Maity, Deependra Singh Gaur, Nitish Kumar Gupta, and Anjani Kumar Tiwari†, "Speckle Correlations in Scattering Birefringent films," XLVII Symposium of OSI: International Conference on Advances in Optics and Photonics Instrumentation (OPTOIn-2024), CSIR-CSIO Chandigarh (23 - 25 October 2024)
(11)- Nikita Choudhary, Mukul Jaiswal, and Anjani Kumar Tiwari†, "Numerical simulation of refractive index-based tunable metamaterial absorber," XLV Symposium of OSI: Conference on Optics, Photonics & Quantum Optics (COPaQ), IIT Roorkee (10 - 13 Nov. 2022)
(10)- Mukul Jaiswal, Nikita Choudhary, and Anjani Kumar Tiwari†, "Broadband metamaterial absorber based on TiN hollow cylinders," XLV Symposium of OSI: Conference on Optics, Photonics & Quantum Optics (COPaQ), IIT Roorkee (10 - 13 Nov. 2022)
(9)- Nitish Kumar Gupta†, Mukesh Kumar, Anjani Kumar Tiwari, Sudipta Sarkar Pal, Harshawardhan Wanare and S. Anantha Ramakrishna, "Experimental Determination of Topological Order in Photonic Stopbands," XLV Symposium of OSI: Conference on Optics, Photonics & Quantum Optics (COPaQ) (10 - 13 Nov. 2022)
(8)- Nitish Kumar Gupta†, Anjani Kumar Tiwari, Harshawardhan Wanare, and S. Anantha Ramakrishna, "Ultra-narrowband asymmetric perfect absorption in quasi-random planar structures," Student Conference on Photonic and Quantum Technology (SCPQT)-2021 link
Nitish Won the Best Poster Presentation Award for this work.
(7)- Anjani Kumar Tiwari†, Saleem Shaik, and S. Anantha Ramakrishna, "Low-threshold, stable lasing in gold-coated nanoporous anodic alumina membranes," OSI - International Symposium on Optics (Contributory Talk), IIT Kanpur (19 - 22 Sept. 2018) link
(6)- Anjani Kumar Tiwari†, Ismail Mekaaoui-Alaoui, Sriram Guddala, and S. Anantha Ramakrishna, "Development of latent fingermarks on aluminum surfaces," OSI - International Symposium on Optics, IIT Kanpur (19 - 22 Sept. 2018) link
(5)- Saleem Shaik†, Anjani Kumar Tiwari, and Anantha Ramakrishna, "Enhanced lasing emission in gold coated nanoporous anodic alumina waveguide slab," Symposium on 30 Years of Photonic Crystals - The Indian Research Scenario, IIT Kanpur (21 - 23 Sept. 2017)
(4)- Anjani Kumar Tiwari†, Ravitej Uppu, and Sushil Mujumdar, "Light localization in quasi-one-dimensional array of spherical resonators," DAE-BRNS Nation Laser Symposium NLS-21, Bhabha Atomic Research Centre, Mumbai (6 - 9 Feb. 2013)
(3)- Anjani Kumar Tiwari†, Balu Chandra, Ravitej Uppu, and Sushil Mujumdar, "Coherent random lasing from an array of amplifying aperiodic spherical scatterers," DAE-BRNS Nation Laser Symposium NLS-20, Crystal Growth Center, Anna University, Chennai (9 - 12 Jan. 2012)
Won the Best Poster Presentation Award given by Indian Laser Association.
Appeared in Kiran, Bulletin of Indian Laser Association, vol. 23, no. 1 (2012) link
(2)- Ravitej Uppu, Anjani Kumar Tiwari, and Sushil Mujumdar†, "Statistical Fluctuations in Coherent Emission from Disordered Nanaostructured Amplifying Materials," XXXVI OSI Symposium on Frontiers in Optics and Photonics, IIT Delhi (3 - 5 Dec. 2011) link
(1)- Anjani Kumar Tiwari†, Ravitej Uppu, and Sushil Mujumdar, "Random Lasing from an Array of Microdroplets," XXXVI OSI Symposium on Frontiers in Optics and Photonics, IIT Delhi (3 - 5 Dec. 2011) link
"†" Corresponding author.