Third-order optical nonlinearities of spray deposited l-glutamic acid thin films using Z-scan and f-scan

Babu, K. Dinesh; Philominathan, P.; Murali, K.

doi:10.1007/s10854-020-04291-w

Cited by 7 publications

(2 citation statements)

References 51 publications

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“…In the past few years, there has been a notable discovery regarding perovskites' favourable properties in nonlinear optics (NLO), specifically their exceptional third-order nonlinear absorption response. This exciting finding opens up the possibility of utilizing perovskites in nonlinear optical materials and devices with great potential [10][11][12].…”

Section: Introductionmentioning

confidence: 94%

Insights into the spectroscopic and structural features of methylammonium copper halide perovskites and theoretical view

Thankappan,

C S,

Babu

et al. 2024

Eng. Res. Express

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This research encompasses a comprehensive investigation of stable metal halide perovskite materials, with a focus on bandgap tuning, crystallization pathways, and the impact of moisture. To study the moisture effects on the optical properties of Methylammonium perovskites, a UV-VIS spectrophotometer was employed, providing valuable insights into their hydrophilic nature and spectroscopic properties. Additionally, morphological, and structural characterization further enhanced our understanding of the microstructure and crystallographic properties. We also explored the materials' response to intense light through the Z scan technique, examining their nonlinear optical properties. The study's findings play a pivotal role in advancing our knowledge and facilitating the development of more stable and versatile perovskite materials for practical applications. Subsequently, simulations were conducted using the Solar Cell Capacitance Simulator SCAPS 1D, revealing a promising solar cell architecture with a glass substrate/FTO/(CH3NH3)2CuCl4/spiro-OMeTAD/Au configuration, showcasing an impressive conversion efficiency of 27.93%, along with a fill factor of 84.16, Jsc of 34.39 mA/cm2, and Voc of 0.9 V.

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Section: Introductionmentioning

confidence: 94%

Insights into the spectroscopic and structural features of methylammonium copper halide perovskites and theoretical view

Thankappan,

C S,

Babu

et al. 2024

Eng. Res. Express

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“…With the development of optoelectronic technology [2], optical fiber has been deeply developed in various fields [3]. In medicine, optical fiber sensors are used to detect the presence or concentration of human biomass, such as DNA hybridization detection [4], Escherichia coli detection [5, 6], glutamic acid [7], acetic acid [8], antibiotics [9], cardiovascular diseases diagnosis [10]. In chemical detection, optical fiber is used to make chemical sensors, such as H 2 S specific detection [11], NH 3 detection [12], ethanol concentration [13], harmful substances [14], urea [15], glucose [16, 17] and humidity [18].…”

Section: Introductionmentioning

confidence: 99%

A review of specialty fiber biosensors based on interferometer configuration

Chen

Zhou

et al. 2021

Journal of Biophotonics

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Optical fiber biosensors have attracted extensive research attention in fields such as public health research, environmental science, bioengineering, disease diagnosis and drug research. Accurate detection of biomolecules is essential to limit the extent of disease outbreaks and provide valuable guidance for regulatory agencies to take timely measures. Among many optical fiber sensors, optical fiber biosensors based on specialty fibers have the advantages of biocompatibility, small size, high measurement resolution, high stability and immunity to electromagnetic interference. In this paper, four types interferometer biosensors based on specialty fiber, namely Mach‐Zehnder interferometer, Michelson interferometer, Fabry ‐ Perot interferometer and Sagnac interferometer, are reviewed in terms of operating principles, sensing structure and application fields. The fiber types are further divided into micro‐nano optical fiber, thin core fiber, polarization maintaining fiber, polymer fiber, microstructure optical fiber. Furthermore, this paper evaluates the advantages and disadvantages of these interferometer biosensors. Finally, main challenging problems and expectational development direction of specialty fiber interferometer biosensors are summarized. This text clearly shows the huge development potential of optical fiber biosensors in biomedical.

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