2010-08-12
Sensitivity of Chirowaveguides to Circular Birefringence by First Order Perturbation Theory
By
Progress In Electromagnetics Research B, Vol. 24, 155-172, 2010
Abstract
Planar waveguides with an isotropic chiral core, called chirowaveguides, support the propagation of elliptically polarized modes, making them natural candidates for chiral sensing. We investigate the potential of chirowaveguides as optical sensors responding to changes in the circular birefringence of a medium covering the waveguide. Using first order approximations, we derive expressions for the sensitivities to refractive index and to changes in circular birefringence. The chiral sensitivity is proportional to the achiral sensitivity and to the eccentricity of the mode under consideration. Possible combinations of materials and design conditions for chirowaveguide sensors are discussed with reference to these results. The motivation for this study, besides its theoretical and academic importance, comes from potential applications for enantiomeric integrated optical devices.
Citation
Stephan Guy, A. Bensalah-Ledoux, and A. Stoita, "Sensitivity of Chirowaveguides to Circular Birefringence by First Order Perturbation Theory," Progress In Electromagnetics Research B, Vol. 24, 155-172, 2010.
doi:10.2528/PIERB10062804
References

1. Barron, L. D., Molecular Light Scattering and Oprical Activity, Cambridge University Press, 2004.
doi:10.1017/CBO9780511535468

2. Torsi, L., G. M. Farinola, F. Marinelli, M. C. Tanese, O. H. Omar, L. Valli, F. Babudri, F. Palmisano, P. G. Zambonin, and F. Naso, "A sensitivity-enhanced field-effect chiral sensor," Nat. Mater., Vol. 7, No. 5, 412-417, 2008.
doi:10.1038/nmat2167        Google Scholar

3. Engheta, N. and P. Pelet, "Modes in chirowaveguides," Opt. Lett., Vol. 14, No. 11, 593-595, 1989.
doi:10.1364/OL.14.000593        Google Scholar

4. Herman, W. N., "Polarization eccentricity of the transverse field for modes in chiral core planar waveguides," J. Opt. Soc. Am. A, Vol. 18, No. 11, 2806-2818, 2001.
doi:10.1364/JOSAA.18.002806        Google Scholar

5. Pelet, P. and N. Engheta, "The theory of chirowaveguides," IEEE Trans. Antennas Prop, Vol. 38, No. 1, 90-98, January, 1990.
doi:10.1109/8.43593        Google Scholar

6. Demidov, S. V., K. V. Kushnarev, and V. V. Shevchenko, "Dispersion properties of the modes of chiral planar optical waveguides," J. Comm. Tech. Electron., Vol. 44, 827-832, 1999.        Google Scholar

7. Bahar, E., "Mueller matrices for waves reflected and transmitted through chiral materials: Waveguide modal solutions and applications," J. Opt. Soc. Am. B, Vol. 24, 1610-1619, 2007.
doi:10.1364/JOSAB.24.001610        Google Scholar

8. Herman, W. N., "Amorphous thin films of chiral binaphtyls for photonic waveguides," J. Macromol. Sci., Part A, Pure Appl. Chem., Vol. 40, No. 12, 1369-1382, 2003.
doi:10.1081/MA-120025316        Google Scholar

9. Guy, L., T. Vautey, and S. Guy, "The use of LCMS as an analytical tool for hydrolysis/polycondensation monitoring of a chiral ormosil precursor," Sol. Gel. Science Technologie, Vol. 52, 146-152, 2009.
doi:10.1007/s10971-009-2004-4        Google Scholar

10. Guy, S., L. Guy, A. Bensalah, A. Pereira, V. Grenard, O. Cosso, and T. Vautey, "Pure chiral organic thin films with high isotropic optical activity synthesized by UV pulsed laser deposition," J. Mater. Chem., Vol. 19, 7093-7097, 2009.
doi:10.1039/b908104f        Google Scholar

11. Lambeck, P. V., "Integrated optical sensors for the chemical domain," Meas. Sci. Technol., Vol. 17, No. 8, R93-R116, 2006.
doi:10.1088/0957-0233/17/8/R01        Google Scholar

12. Lukosz, W., "Principles and sensitivities of integrated optical and surface plasmon sensors for direct affinity sensing and immunosensing," Biosensors and Bioelectronics, Vol. 6, No. 3, 215-225, 1991.
doi:10.1016/0956-5663(91)80006-J        Google Scholar

13. Tiefenthaler, K. and W. Lukosz, "Sensitivity of grating couplers as integrated-optical chemical sensors," J. Opt. Soc. Am. B, Vol. 6, No. 2, 209-220, 1989.
doi:10.1364/JOSAB.6.000209        Google Scholar

14. Lindell, V. I., A. Shivola, S. A. Tretyakov, and A. J. Viitanen, Electromagnetic Waves in Chiral and Bi-isotropic Media, Artech House, 1994.

15. Yariv, A. and P. Yeh, Optical Waves in Crystals, Wiley, 1984.

16. Pelet, P. and N. Engheta, "Coupled-mode theory for chirowaveguides," J. Appl. Phys., Vol. 67, No. 6, 2742-2745, 1990.
doi:10.1063/1.345439        Google Scholar

17. Parriaux, O. and G. J. Veldhuis, "Normalized analysis for the sensitivity optimization of integrated optical evanescent-wave sensors," J. Lightwave Technol., Vol. 16, No. 4, 573-582, 1998.
doi:10.1109/50.664066        Google Scholar

18. Horvath, R., L. R. Lindvold, and N. B. Larsen, "Reverse-symmetry waveguides: Theory and fabrication," Appl. Phys. B, Vol. 74, 383-93, 2002.
doi:10.1007/s003400200823        Google Scholar

19. Lukosz, W., "Integrated optical chemical and direct biochemical sensors," Sensors and Actuators B, Vol. 29, 37-50, 1995.
doi:10.1016/0925-4005(95)01661-9        Google Scholar