V
Venkatram Nalla
Researcher at Nanyang Technological University
Publications - 44
Citations - 1534
Venkatram Nalla is an academic researcher from Nanyang Technological University. The author has contributed to research in topics: Laser & Metamaterial. The author has an hindex of 18, co-authored 44 publications receiving 1232 citations. Previous affiliations of Venkatram Nalla include University of Southampton & National University of Singapore.
Papers
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Solution-Processed Low Threshold Vertical Cavity Surface Emitting Lasers from All-Inorganic Perovskite Nanocrystals
TL;DR: In this paper, the vertical cavity surface emitting laser (VCSEL) based on the CsPbX3 IPNCs, featuring low threshold (9 µJ cm−2), directional output (beam divergence of ≈3.6°), and favorable stability, are realized for the first time.
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High‐Performance Broadband Photodetector Using Solution‐Processible PbSe–TiO2–Graphene Hybrids
Kiran Kumar Manga,Junzhong Wang,Ming Lin,Jie Zhang,Milos Nesladek,Venkatram Nalla,Wei Ji,Kian Ping Loh +7 more
TL;DR: Highly sensitive, multicomponent broadband photodetector devices are made from PbSe/graphene/TiO(2), where the graphene acts as a charge collector for both photogenerated holes and electrons under an applied electric field.
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Solution-Grown CsPbBr 3 /Cs 4 PbBr 6 Perovskite Nanocomposites: Toward Temperature-Insensitive Optical Gain
Yue Wang,Dejian Yu,Zeng Wang,Xiaoming Li,Xiaoming Li,Xiaoxuan Chen,Venkatram Nalla,Haibo Zeng,Handong Sun +8 more
TL;DR: This paper addresses the above two issues simultaneously by embedding ligands-free CsPbBr3 nanocrystals in a wider band gap Cs4 PbBr6 matrix by solution-phase synthesis and represents a significant step toward the temperature-insensitive frequency-upconverted lasers.
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Blue Liquid Lasers from Solution of CdZnS/ZnS Ternary Alloy Quantum Dots with Quasi-Continuous Pumping
Yue Wang,Kheng Swee Leck,Van Duong Ta,Rui Chen,Venkatram Nalla,Yuan Gao,Tingchao He,Hilmi Volkan Demir,Hilmi Volkan Demir,Handong Sun +9 more
TL;DR: A blue (ca. 440 nm) liquid laser with an ultra-low threshold through which quasi-continuous wave pumping is accessible is achieved by engineering unconventional ternary CdZnS/ ZnS alloyed-core/shell QDs.
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A New Class of Lasing Materials: Intrinsic Stimulated Emission from Nonlinear Optically Active Metal-Organic Frameworks.
Raghavender Medishetty,Venkatram Nalla,Lydia Nemec,Sebastian Henke,David C. Mayer,Handong Sun,Karsten Reuter,Roland A. Fischer +7 more
TL;DR: Blue-color stimulated emission with low threshold power is observed from In- and Zn-MOFs, which feature a highly fluorescent chromophore densely packed and rigidly linked to the metal-ion centers in the solid state.