Confinement and IR Induced Optical Nonlinearity and Enhanced Second-Order Susceptibility in Nano-Sized Crystals
DOI:
https://doi.org/10.26554/ijmr.20253257Keywords:
Nanomaterials, Nano-Confined Effect, Doping Effect, Optical SusceptibilityAbstract
Cadmium iodide bulk- and nano-crystals are grown and doping defect and quantum-confinement effects in IR-induced optical susceptibility in the nanocrystals are investigated. Bulk-sized and intrinsic crystals are also investigated as of reference. The nanomaterials with various crystal sizes are pumped with an IR laser beam. This pump-probe experiment probes the doubledfrequency IR-induced second harmonic optical beam. The expression for the second harmonic intensity is obtained from the electric polarization of the nanomaterial process subjected to high intensity illumination. The second–order susceptibility is calculated from the experimentally measured data. The results show that a significant enhancement in the optical susceptibility is achieved in nanomaterials with moderately doping. The maximum second–order optical susceptibility is found to 0.65 pm/V. However, bulk and intrinsic crystals show no considerable second harmonic effect. A nonlinear transmittance measurement for the determination of the second-order contribution in absorption supports the effect.
References
Ablowitz, M. J. and P. A. Clarkson (1991). Solitons, Nonlinear Evolution Equations and Inverse Scattering, volume 149 of London Mathematical Society Lecture Note Series. Cambridge University Press, Cambridge, UK.
Adduci, F., A. Cingolani, M. Ferrara, M. Lugara, and M. Minafra (1977). High Excitation Intensity Effects at Different Pump Wavelengths in PbI₂. Il Nuovo Cimento B, 38(4); 610–617.
Barbagiovanni, E. G., D. J. Lockwood, P. J. Simpson, and L. V. Goncharova (2014). Quantum Confinement in Si and Ge Nanostructures: Theory and Experiment. Applied Physics Reviews, 1(1); 011302.
Bridgman, P. W. (1952). The Resistance of 72 Elements, Alloys and Compounds to 100.000 kg/cm². Proceedings of the American Academy of Arts and Sciences, 81; 165.
Catalano, I. M., A. Cingolani, R. Ferrara, and M. Lepore (1985). Optical Processes in Layered Semiconductors. Helvetica Physica Acta, 58(3); 329–340.
Cazzanelli, M. and J. Schilling (2016). Second Order Optical Nonlinearity in Silicon by Symmetry Breaking. Applied Physics Reviews, 3(1); 011104.
Gopalan, V., N. A. Sanford, J. A. Aust, K. Kitamura, and Y. Furukawa (2007). Crystal Growth, Characterization, and Domain Studies in Lithium Niobate and Lithium Tantalate Ferroelectrics. In H. S. Nalwa (Ed.), Handbook of Advanced Electronic and Photonic Materials and Devices, Volume 4, Chapter 2. Elsevier, Burlington, MA, pp. 58–112.
Haug, H. (1988). Optical Nonlinearities and Instabilities in Semiconductors. Academic Press, New York, NY.
Herest, D. and F. Voolless (2004). Manifestation of Nano-Sized Effects in Photoinduced Nonlinear Optics of CdI₂–Cu Layered Single Crystals. Optics and Lasers in Engineering, 42(1); 85–89.
Khlebtsov, N. G., L. A. Trachuk, and A. G. Mel’nikov (2005). Depolarization of Light Scattered by Gold Nanospheres and Nanorods. Optics and Spectroscopy, 98(1); 77–83.
Kityk, I. V., S. A. Pyroha, T. Mydlarz, J. Kasperczyk, and M. Czerwiński (1998). Magnetic Field-Induced Ferroelectricity in Copper-Doped CdI₂ Single Crystals. Ferroelectrics, 205(1); 107–117.
Kivshar, Y. S. and G. P. Agrawal (2003). Optical Solitons. Academic Press, New York, NY.
Mahr, H. (1975). Quantum Electronics. Academic Press, New York, NY.
Miah, M. I. (2001). Determination of Multiphoton Absorption Coefficient of Cadmium Iodide Using Nonlinear Transmittance and Photoluminescence Methods. Optical Materials, 18(2); 231–234.
Miah, M. I. (2008). Size– and Temperature–Dependent Second–Order Optical Effects in Copper–Doped Cadmium Iodide Nanocrystals. Journal of Applied Physics, 104(6); 064313.
Miah, M. I. (2009a). Impurity–Defect Induced Noncentrosymmetricity in Nonlinear Optical Processes. Materials Chemistry and Physics, 118; 417–423.
Miah, M. I. (2009b). A Large Enhancement of Photo–Induced Second Harmonic Generation in CdI₂–Cu Layered Nanocrystals. The Journal of Physical Chemistry B, 113(19); 6800–6802.
Miah, M. I. (2009c). Optical Power Limiting and Transmitting Properties of Cadmium Iodide Single Crystals: Temperature Dependence. Physics Letters A, 373(36); 3483–3487.
Miah, M. I. (2009d). Three–Photon Excited PL Spectroscopy and Photo–Generated Frenkel Defects in Wide–Bandgap CdI₂ Semiconductors. Physics Letters A, 374(1); 75–77.
Miah, M. I. (2010). Nonlinear Optical Activity in Bridgman Growth Layered Compounds. Materials Chemistry and Physics, 119; 402–408.
Miah, M. I. (2011). Nano–Confined and Copper–Defect in Wide–Bandgap Semiconductors. Optics Communications, 284; 5199–5203.
Miah, M. I. (2018). Multiphoton Excitation and Thermal Activation in Indirect Bandgap Semiconductors. Optical and Quantum Electronics, 50(9); 355.
Miah, M. I. (2019). Induction Strategies of the Noncentrosymmetricity in Centrosymmetric Nonlinear Optical Nanocrystal Processes. The European Physical Journal B, 92(10); 224.
Miah, M. I. and J. Kasperczyk (2009). Cu–Doping Effects in CdI₂ Layered Nanostructures: The Role of Photo–Induced Electron–Phonon Anharmonic Interactions. Applied Physics Letters, 94(5); 053117.
Mott, N. F. and E. A. Davis (1979). Electronic Processes in Non-Crystalline Materials. Clarendon Press, Oxford, UK.
Nakagawa, H. and M. Kitaura (1995). Optical Nonlinear Processes. In Proceedings SPIE, Volume 2362, pp. 294–301.
Slater, J. C. (1956). Barrier Theory of the Photoconductivity of Lead Sulfide. Physical Review, 103; 1631–1636.
Zhanga, F., N. Xu, J. Zhao, Y. Wang, X. Jiang, Y. Zhang, W. Huang, L. Hu, Y. Tang, S. Xu, and H. Zhang (2020). Two-Dimensional Materials for Photonic Applications. Nanophotonics, 9; 1963–1989.
