In this study, 1D Photonic Crystal (PhC) with Nematic Liquid Crystal (N-LC) central microcavity is analyzed and discussed using Rigorous Coupled Wave Analysis (RCWA) method. A microcavity is inserted into the 1D PhC by the Air Defect, making it ideal for measuring the properties of an N-LC contained inside the microcavity. Here simulation is considered for N-LC (E7) as a thermal sensor. The principle of photonic crystal thermal sensor operation is studied in the TE mode of the incident beam. We conduct a detailed study of the thermal sensor with differences in the width of central microcavity of N-LC. The sensitivity and quality factor are evaluated. Compared to other photonic crystal sensors mentioned previously, this thermal optical sensor has a much simpler structure and higher sensitivity.
2. Bougriou, F., et al., "Optofluidic sensor using two-dimensional photonic crystal waveguides," Eur. Phys. J. Appl. Phys., Vol. 62, No. 1, 11201-11205, 2013.
3. Wu, J. J. and J. X. Gao, "Low temperature sensor based on one-dimensional photonic crystals with a dielectric-superconducting pair defect," Optik, Vol. 126, No. 24, 5368-5371, 2015.
4. Ma, L., T. Katagiri, and Y. Matsuura, "Surface-plasmon resonance sensor using silica-core Bragg fiber," Opt. Lett., Vol. 34, No. 7, 1069-1071, 2009.
5. Lai, W., S. Chakravarty, X. Wang, C. Lin, and R. T. Chen, "On-chip methane sensing by near-IR absorption signatures in a photonic crystal slot waveguide," Opt. Lett., Vol. 36, 984-986, 2011.
6. Zhang, Y., Y. Zhao, and Q. Wang, "Measurement of methane concentration with cryptophane E infiltrated photonic crystal microcavity," Sens. Actuators B: Chem., Vol. 209, 431-437, 2015.
7. Chang, Y., Y. Jhu, and C. Wu, "Temperature dependence of defect mode in a defective photonic crystal," Optics Communications, Vol. 285, 1501-1504, 2012.
8. Zhang, Y., Y. Zhao, and R. Lv, "A review for optical sensors based on photonic crystal cavities," Sens. Actuators A: Phys., Vol. 233, 374-389, 2015.
9. Liu, Y. and H. W. M. Salemink, "All-optical on-chip sensor for high refractive index sensing in photonic crystals," EPL, Vol. 107, No. 1-5, 34008, 2014.
10. Zheng, S., B. Shan, M. Ghandehari, and J. Ou, "Sensitivity characterization of cladding modes in long-period gratings photonic crystal¯ber for structural health monitoring," Measurement, Vol. 72, 43-51, 2015.
11. Zheng, S., Y. Zhu, and S. Krishnaswamy, "Nanofilm-coated photonic crystal fiber long-period gratings with modal transition for high chemical sensitivity and selectivity," SPIE, Vol. 8346, 83460D, 2012.
12. Fenzl, C., T. Hirsch, and O. S. Wolfbeis, "Photonic crystals for chemical sensing and biosensing," Angew. Chem. Int. Edit., Vol. 53, 3318-3335, 2014.
13. Gong, Q. H. and X.-Y. Hu, "Ultrafast photonic crystal optical switching," Front. Phys. China, Vol. 1, 171, 2006.
14. Singh, A., K. B. Thapa, and N. Kumar, "Analysis and design of optical biosensors using one-dimensional photonic crystals," Optik, Vol. 126, No. 2, 244-250, 2015.
15. Awasthi, S. K. and S. P. Ojha, "Design of a tunable optical filter by using a one-dimensional ternary photonic band gap material," Progress In Electromagnetics Research M, Vol. 4, 117-132, 2008.
16. Mohebbi, M., "Refractive index sensing of gases based on a one-dimensional photonic crystal nanocavity," J. Sens. Sens. Syst., Vol. 4, No. 1, 209-215, 2015.
17. Sakoda, K., Optical Properties of Photonic Crystals, Vol. 80, Springer Science & Business Media, 2004.
18. Skorobogatiy, M. and J. Yang, Fundamentals of Photonic Crystal Guiding, Cambridge University Press, 2009.
19. Mounir, B., C. Haouari, A. Saïd, and A. Hocini, "Analysis of highly sensitive biosensor for glucose based on a one-dimensional photonic crystal nanocavity," Optical Engineering, Vol. 58, No. 2, 027102, 2019.
20. Wu, P. C. and W. Lee, "One-dimensional photonic crystals containing memory-enabling liquid crystal defect layers," Proc. SPIE, Vol. 8828, 1-10, 2013.
21. Mohamed, M. S., M. F. O. Hameed, M. M. El-Okr, and S. S. A. Obayya, "Characterization of one-dimensional liquid crystal photonic crystal structure," Optik, Vol. 127, 8774-8781, 2016.
22. Bouras, M. and A. Hocini, "Mode conversion in magneto-optic rib waveguide made by silica matrix doped with magnetic nanoparticles," Optics Communications, Vol. 363, 138-144, 2016.
23. Marthandappa, M., R. Somashekar, and Nagappa, "Electro-optic effects in nematic liquid crystals," Phy. State Sol. (A), 127-259, 1991.
24. Armand, H. and M. D. Ardakani, "Theoretical study of liquid crystal dielectric-loaded plasmonic waveguide," International Journal of Microwave and Wireless Technologies, Vol. 9, No. 2, 275, 2017.
25. Liu, Y., Y. Liu, H. Li, D. Jiang, W. Cao, H. Chen, L. Xia, and R. Xu, "Tunable microwave bandpass filter integrated power divider based on the high anisotropy electro-optic nematic liquid crystal," Review of Scientific Instruments, Vol. 87, 074709, 2016.
26. Li, J., C. H. Wen, S. Gauza, R. Lu, and S. Wu, "Refractive indices of liquid crystals for display applications," IEEE/OSA J. Disp. Technol., Vol. 1, 51-61, 2005.
27. Li, J., S.-T. Wu, B. Stefano, M. Riccardo, and F. Sandro, "Infrared refractive indices of liquid crystals," J. Appl. Phys., Vol. 97, 073501, 2005.
28. Li, J. and S. T. Wu, "Extended Cauchy equations for the refractive indices of liquid crystals," Appl. Phys., Vol. 95, 896, 2004.
29. Bouzidi, A. and D. Bria, "Low temperature sensor based on one-dimensional photonic crystals," International Conference on Electronic Engineering and Renewable Energy, 157-163, Springer, Singapore, 2018.
30. Hocini, A., M. Bouras, and H. Amata, "Theoretical investigations on optical properties of magneto-optical thinfilm on ion-exchanged glass waveguide," Opt. Mater., Vol. 35, No. 9, 1669-1674, 2013.
31. Dermeche, N., M. Bouras, and R. Abdi-Ghaleh, "Existence of high Faraday rotation and transmittance in magneto photonic crystals made by silica matrix doped with magnetic nanoparticles," Optik, Vol. 198, 163225, 2019.
32. Liu, Y., Y. Liu, H. Li, D. Jiang, W. Cao, H. Chen, L. Xia, and R. Xu, "Tunable microwave bandpass filter integrated power divider based on the high anisotropy electro-optic nematic liquid crystal," Review of Scientific Instruments, Vol. 87, 074709, 2016.
33. Mounir, B., C. Haouari, A. Saïd, and A. Hocini, "Analysis of highly sensitive biosensor for glucose based on a one-dimensional photonic crystal nanocavity," Optical Engineering, Vol. 58, No. 2, 027102, 2019.
34. Li, J. and S. T. Wu, "Extended Cauchy equations for the refractive indices of liquid crystals," Appl. Phys., Vol. 95, 896, 2004.
35. Monmayrant, A., et al., "Full optical confinement in 1D mesoscopic photonic crystal-based microcavities: An experimental demonstration," Optics Express, Vol. 25, No. 23, 28288-28294, 2017.
36. D'orazio, A., "Infiltrated liquid crystal photonic bandgap devices for switching and tunable filtering," Fiber and Integrated Optics, Vol. 22, No. 3, 161-172, 2003.
37. Perova, T. S., et al., "Tunable one-dimensional photonic crystal structures based on grooved Si infiltrated with liquid crystal E7," Phy. State Sol. (C), Vol. 4, No. 6, 1961-1965, 2007.
38. Miroshnichenko, A. E., E. Brasselet, and Y. S. Kivshar, "All-optical switching and multistability in photonic structures with liquid crystal defects," Applied Physics Letters, Vol. 92, No. 25, 230, 2008.