Article
Optics
D. Sahoo, P. Priyadarshini, A. Aparimita, D. Alagarasan, R. Ganesan, S. Varadharajaperumal, Ramakanta Naik
Summary: This study investigates the effects of annealing on the optical properties of As40Se50Te10 thin films, showing an increase in both linear and nonlinear optical constants. Additionally, XPS and Raman spectroscopy revealed a conversion of heteropolar to homopolar bonds. Therefore, annealing temperature can be utilized as a significant tool in controlling the optical constants of these chalcogenide films.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Deviprasad Sahoo, Satyaprakash Sahoo, Devarajan Alagarasan, Rajamanickam Ganesan, Selvaraj Varadharajaperumal, Ramakanta Naik
Summary: This study investigates the impact of proton irradiation on the structural, optical, and morphological properties of thermally evaporated As40Se50Sb10 thin films. The results show that proton irradiation leads to changes in absorption edge, optical band gap, and nonlinear optical parameters, demonstrating the tuning capabilities of the films. X-ray diffraction indicates the amorphous nature of the films post-irradiation, and microstructural changes are observed from Raman spectra. The higher values of nonlinear optical parameters with proton irradiation are crucial for advanced photonic applications.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Abinash Parida, D. Sahoo, D. Alagarasan, S. Vardhrajperumal, R. Ganesan, R. Naik
Summary: The current paper reports the thermal annealing induced amorphous to crystalline transformation of the quaternary In15Sb10S15Se60 thin films. The structural and optical properties of the films were characterized, and it was found that annealing resulted in the decrease of optical bandgap and increase in linear refractive index. The changes in the linear and nonlinear optical parameters make the In15Sb10S15Se60 thin films suitable for various photonic and optoelectronic applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Physics, Condensed Matter
E. R. Sharaf, I. S. Yahia, M. I. Mohammed, H. Y. Zahran, E. R. Shaaban
Summary: This study aimed to prepare nanostructured ZnSe films on FTO glass using thermal evaporation technique, analyzing their structural properties through X-ray diffraction and atomic force microscope, evaluating optical parameters and dielectric properties. The results indicate that ZnSe/FTO films exhibit high refractive index and third-order nonlinear optical susceptibility, making them suitable for next-generation electronic and optoelectronic devices.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Materials Science, Multidisciplinary
D. Haleshappa, Raghavendra Bairy, S. N. Sridevi, S. N. Kakathkar, H. Vijeth, Neelamma Gummagol
Summary: In this study, we investigated the electrical, linear, and nonlinear optical parameters of thiophene-centering chalcone doped PMMA thin films. The deposited thin films showed uniform behavior and consistent performance. The optical properties, including the optical band gap and photoluminescence, varied with chalcone concentration. The nonlinear optical properties of the films make them suitable for optoelectronic device applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
A. Parida, D. Alagarasan, R. Ganesan, S. Vardhrajaperumal, R. Naik
Summary: This paper reports the changes in the structural and optical properties of antimony-doped tin sulfide thin films synthesized by the thermal evaporation technique. The study found that increasing the antimony concentration led to an increase in transmittance, a shifting of the absorption edge, an increase in the optical bandgap, and a decrease in the refractive index and nonlinear susceptibility of the films.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
A. Khalid, R. M. Ahmed, Mohamed Taha, T. S. Soliman
Summary: Magnetic iron oxide (Fe3O4) and Fe3O4 @SiO2 core-shell nanoparticles were prepared and their optical properties were studied. Three different methods were used to determine the optical gap energy of the nanoparticles, and it was found that Fe3O4 @SiO2 NPs have higher gap energy values compared to Fe3O4 NPs and SiO2 NPs. The Fe3O4 @SiO2 NPs also exhibited high values of optical oscillator strength and third-order nonlinear optical susceptibility, making them suitable for applications in nonlinear optics. The synthesized Fe3O4 @SiO2 core-shell nanomaterials with enhanced optical parameters are considered as promising candidates for nonlinear optical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Biplab Jyotiranjan Jena, S. Das, S. Senapati, R. Naik
Summary: The study investigates the time dependent laser induced effects on the linear and nonlinear optical properties of Ag2S/As2Se3 heterostructure films. The intermixing of Ag2S and As2Se3 layers forms an Ag-S-Se-As solid solution, which leads to changes in absorption edge and other optical parameters. The transmittance gradually saturates while the absorbance slightly increases. Changes in film's structure result in a reduction in bandgap and an increase in static refractive index and nonlinear refractive index upon laser irradiation. The film's stability and morphology make it suitable for optoelectronic applications, especially under laser exposure.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Optics
A. S. Salwa, A. Salem, H. T. Shaban
Summary: The manuscript discusses the linear and nonlinear optical studies of thin indium selenide films prepared using the thermal evaporation technique, which is of interest due to its specific characteristics. The optical band gaps for direct and indirect transitions were found to decrease as the film thickness increased.
Article
Engineering, Electrical & Electronic
D. Sahoo, P. Priyadarshini, R. Dandela, D. Alagarasan, R. Ganesan, S. Varadharajaperumal, Ramakanta Naik
Summary: This study investigates the phase transformation and optical properties of As50Se50 thin films upon annealing at different temperatures. The structural changes and optical behavior varied significantly between the annealing temperatures of 423K and 523K.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Optics
David Zuber, Sven Kleinert, Ayhan Tajalli, Morten Steinecke, Marco Jupe, Ihar Babushkin, Detlev Ristau, Uwe Morgner
Summary: We investigated third harmonic generation (THG) from dielectric layers. By creating a thin gradient of HfO2 with increasing thickness, we were able to study this process in detail. This technique allowed us to understand the influence of the substrate and quantify the third (x(3)(30): 0), 0), 0)) and even fifth order (x(5)(30): 0), 0), 0), 0), - 0)) nonlinear susceptibility of layered materials at the fundamental wavelength of 1030 nm. This is the first measurement of fifth order nonlinear susceptibility in thin dielectric layers, to the best of our knowledge.
Article
Materials Science, Multidisciplinary
Zhen Yang, Haonan Hu, Qiuli Li, Zheng Zhang, Lei Niu, Jian Wu, Tengxiu Wei, Yuanhuan Sun, Yiming Fang, Xunsi Wang, Zhiyong Yang, Jinfeng Zhou, Rongping Wang
Summary: By preparing GexSe10Te90-x glasses with varying Te contents and measuring their properties, it was found that the glasses exhibit different optical characteristics depending on the composition, with the nonlinear optical refractive index showing significant variations. These Te-based glasses show potential for applications as mid- and far-infrared nonlinear optical devices.
Article
Physics, Multidisciplinary
Chetan Sharma, Monika Barala, Getu Endale, Vinay Kumari, Devendra Mohan
Summary: The present work investigates the effect of thickness on the nonlinear optical properties of Erbium-doped zinc oxide (EZO) films. EZO thin films with varying thickness were prepared using a spin coating method. The films were analyzed using various techniques, and it was found that a thickness of 280 nm exhibited the best nonlinear behavior. This research provides insights for designing high-order optical limiter devices.
Article
Materials Science, Multidisciplinary
A. L. Sunatkari, S. S. Talwatkar, Y. S. Tamgadge, G. G. Muley
Summary: Gold nanoparticles stabilized in various concentrations of L-alanine were synthesized using a chemical reduction method. Nonlinear optical responses were measured in different stabilizer and matrix environments, demonstrating the significant influence of L-alanine on the stabilization and NLO properties of the GNPs.
Article
Optics
Mohamed Ashour, M. Sh Abdel-Wahab, Abdullah Shehata, Wael Z. Tawfik, M. A. Azooz, Souad A. Elfeky, Tarek Mohamed
Summary: This paper experimentally investigated the linear and third-order optical nonlinearities of a pure CuO thin film deposited on a soda-lime glass substrate. The film's structure and linear optical properties were measured using XRD, surface profilometer, and UV-Vis spectrophotometer. The Z-scan technique was used to measure the film's nonlinear optical properties under different excitation wavelengths and incident laser powers. The results showed a reduction in nonlinear absorption coefficient and nonlinear refractive index with increasing excitation wavelength, and wavelength-dependent optical limiting of the CuO thin film.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Preeti Yadav, Ambika Sharma
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Polymer Science
Rakhi Nangia, Neeraj K. Shukla, Ambika Sharma
HIGH PERFORMANCE POLYMERS
(2018)
Article
Chemistry, Physical
Rakhi Nangia, Neeraj K. Shukla, Ambika Sharma
JOURNAL OF MOLECULAR STRUCTURE
(2019)
Article
Engineering, Electrical & Electronic
Chetna Tyagi, Ambika Devi
JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS
(2019)
Article
Materials Science, Multidisciplinary
Rakhi Nangia, Neeraj K. Shulda, Ambika Sharma
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Characterization & Testing
Rakhi Nangia, Neeraj K. Shukla, Ambika Sharma, Deepika
Article
Energy & Fuels
Sarita Yadav, Ambika Devi
JOURNAL OF ENERGY STORAGE
(2020)
Review
Optics
Reena Gadhwal, Ambika Devi
Summary: The optical limiting behavior of various nonlinear materials, including carbon nanotubes, fullerenes, semiconductors, graphene, and carbon black suspensions, have been reviewed. The study emphasized the reflection-based optical limiters for their self-protecting optical limiting over a broad transmission bandwidth, and also compared the limiting parameters of several nonlinear materials.
OPTICS AND LASER TECHNOLOGY
(2021)
Review
Materials Science, Multidisciplinary
Nita Samantaray, Bhaskar Parida, Tetsuo Soga, Ambika Sharma, Avinashi Kapoor, Adel Najar, Arjun Singh
Summary: Perovskite solar cells emerged as the next generation of photovoltaic technology over a decade ago, showing higher power conversion efficiency and simpler manufacturing processes compared to Silicon solar cells. Recent research has focused on using printing technology to control film formation for higher efficiency. Future research aims to address the challenges of commercializing PSCs.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Review
Energy & Fuels
Sarita Yadav, Ambika Sharma
Summary: Supercapacitors, known for their high power density and long cycle life, are of great interest in research and commercial applications. The synthesis technique hydrothermal method is cost-effective, eco-friendly, and allows for well-defined crystalline morphologies. Despite its wide use, limited detailed knowledge has been shared about this method in supercapacitor research.
JOURNAL OF ENERGY STORAGE
(2021)
Review
Materials Science, Multidisciplinary
Reena Gadhwal, Parul Kaushik, Ambika Devi
Summary: All-optical limiting devices, based on materials enabling light to control light, have a nonlinear optical response and are gaining popularity. One-dimensional photonic crystals (1D PhC) are a promising platform for achieving optical limiters with low limiting threshold and high damage threshold. However, their utility to protect optical sensors and devices is still limited.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Sourav Ghosh, Sarita Yadav, Ambika Devi, Tiju Thomas
Summary: Meeting energy needs is a cross-disciplinary research area that requires expertise in multiple fields. This article provides a comprehensive understanding of the energy-economy relation and offers material-based solutions to address market demand. The study highlights the high demand for supercapacitors in the Indian market and uses a data-driven approach to gain insights into the market's technical requirements. Additionally, the article discusses the potential of hybrid energy storage systems and metal oxide-carbon hybrid materials to provide low-cost, environmentally friendly, and clean energy storage solutions for renewable energy resources.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Optics
Reena Gadhwal, Hukum Singh, Ambika Devi, Kapil Kumar
Summary: In this article, spectral studies and optical nonlinearities of optical grade thin films fabricated from nano colloidal solutions of Ge20Te75Bi5 chalcogenide glass are reported. The emission peaks and bandgap of the films vary with the concentration and grain size of the nanocomposites. The presence of reverse saturable absorption is confirmed and the third-order optical nonlinearities can be enhanced for usage in nonlinear optical systems.
OPTICS AND LASER TECHNOLOGY
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Rakhi Nangia, Neeraj K. Shukla, Ambika Sharma
MATERIALS TODAY-PROCEEDINGS
(2019)
Proceedings Paper
Nanoscience & Nanotechnology
Rakhi Nangia, Neeraj K. Shukla, Ambika Sharma
NATIONAL CONFERENCE ON ADVANCED MATERIALS AND NANOTECHNOLOGY (AMN-2018)
(2018)