Characterization of some biological materials relies on absorption imaging. In this paper, a highly translucent flat two-layer structure as part of an imaging system called spectrometer is proposed that has a very high numerical aperture (NA) and high quality factor (QF). The structure can be used to identify micro-biological materials with previously known absorption rate, under single-wavelength electromagnetic absorbance imaging. The proposed two-layer structure is composed of a double-near-zero (DNZ) slab coupled to a high-index dielectric slab with a specific thickness. In DNZ materials, both the permittivity and permeability are close to zero. The DNZ slab operates as a flat lens, and the very high-index dielectric slab functions as a high QF monochromator that at the same time increases NA of the lens without affecting translucidity of the two-layer structure. At the end, a transformation optics (TO) based nonlinear lens is introduced that can be replaced as the DNZ layer. The focus of the nonlinear lens can be tuned by tuning its material parameters.
2. Dehbashi, R., K. S. Bialkowski, and A. M. Abbosh, "Uniqueness theorem and uniqueness of inverse problems for lossy anisotropic inhomogeneous structures with diagonal material tensors," J. Appl. Phys., Vol. 121, No. 20, 203103, 2017.
3. Dehbashi, R. and M. Shahabadi, "Possibility of perfect concealment by lossy conventional and lossy metamaterial cylindrical invisibility cloaks," J. Appl. Phys., Vol. 114, No. 24, 244501, 2013.
4. Pendry, J. B., "Negative refraction makes a perfect lens," Phys. Rev. Lett., Vol. 18, No. 85, 3966, 2000.
5. Smith, D. R., J. B. Pendry, and M. C. K. Wiltsgire, "Metamaterials and negative refractive index," Science, Vol. 305, 788, 2004.
6. Dehbashi, R., D. Fathi, S. Mohajerzadeh, and B. Forouzandeh, "Equivalent left-handed/right-handed metamaterial’s circuit for the massless dirac fermions with negative refraction," IEEE J. Sel. Top. Quantum Electron., Vol. 16, No. 2, 394, 2010.
7. Alu, A., M. G. Silveirinha, A. Salandrino, and N. Engheta, "Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern," Phys. Rev. B, Vol. 75, No. 15, 155410, 2007.
8. Alekseyev, L. V., E. E. Narimanov, T. Tumkur, H. Li, Y. A. Barnakov, and M. A. Noginov, "Uniaxial epsilon-near-zero metamaterial for angular filtering and polarization control," Appl. Phys. Lett., Vol. 13, No. 97, 131107, 2010.
9. Liu, R., Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, "Experimental demonstration of electromagnetic tunnelling through an epsilon-near-aero metamaterial at microwave frequencies," Phys. Rev. Lett., Vol. 2, No. 100, 023903, 2008.
10. Mass, R., J. Parsons, N. Engheta, and A. Polman, "Experimental realization of an epsilon-near-zero metamaterial at visible wavelength," Nat. Photonics, Vol. 7, 907, 2013.
11. Ahmed, M. M. and N. Engheta, "Wave-matter interactions in epsilon-and-mu-near-zero structures," Nat. Commun., Vol. 5, 5638, 2014.
12. Dehbashi, R., K. S. Bialkowski, and A. M. Abbosh, "Half-sized cylindrical invisibility cloaks using double near zero slabs with realistic material size and properties," Opt. Express, Vol. 25, No. 20, 24486, 2017.
13. Dehbashi, R., K. S. Bialkowski, and A. M. Abbosh, "Size reduction of electromagnetic devices using double near zero materials," IEEE Trans. Antenn. Propag., Vol. 65, No. 12, 7102, 2017.
14. Yuan, Y., et al., "Independent phase modulation for quadruplex polarization channels enabled by chirality-assisted geometric-phase metasurfaces," Nat. Commun., Vol. 11, 4186, 2020.
15. Yuan, Y., S. Sun, Y. Chen, K. Zhang, X. Ding, B. Ratni, Q. W. Shah, N. Burokur, and C.-W. Qiu, "A fully phase-modulated metasurface as an energy-controllable circular polarization router," Advanced Science, Vol. 7, 18, 2020.
16. Zhang, K., Y. Yuan, X. Ding, B. Ratni, S. N. Burokur, and Q. Wu, ACS Applied Materials & Interfaces, Vol. 11, No. 31, 28423-28430, 2019.
17. Chang, K. Y. and G. Varani, "Nucleic acids structure and recognitions," Nat. Struct. Biol., Vol. 4 (suppl.), 854, 1997.
18. Friedberg, E. C., G. C. Walker, and W. Siede, DNA Repair and Mutagenesis, W. H. Freeman and Company, New York, 1995.
19. Nelson, D. L. and M. M. Cox, Lehninger Principles of Biochemistry, W. H. Freeman and Company, 2005.
20. Scopes, R. K., Protein Purification: Principles and Practice, 3rd Ed., Spring-Verlag, New York, 1994.
21. Crofts, A. R. and E. A. Berry, "Structure and function of the cytochrome bc1 complex of mitochondria and photosynthetic bacteria," Curr. Opin. Struct. Biol., Vol. 8, 501, 1998.
22. Michel, H., J. Behr, A. Harrenga, and A. Kannt, "Cytochrome c oxidase: Structure and spectroscopy," Annu. Rev. Biophys. Biomol. Struct., Vol. 27, 329, 1998.
23. Tsukihara, T., et al., "The whole structure of the 13-subunit oxidized cytochrome c oxidase at 2.8A◦," Science, Vol. 272, 113, 1996.
24. Butt, W. D. and D. Keilin, "Absorption spectra and some other properties of cytochrome c and of its compounds with ligands," Proc. R. Soc. Lond. B Biol. Sci., Vol. 156, 429-458, 1962.
25. Mansfield, S. M. and G. S. Kino, "Solid immersion microscope," Appl. Phys. Lett., Vol. 57, No. 24, 2615, 1990.
26. Wu, Q., G. D. Feke, R. D. Grober, and L. P. Ghislain, "Realization of numerical aperture 2.0 using a gallium phosphide solid immersion lens," Appl. Phys. Lett., Vol. 75, No. 26, 4062, 1999.
27. Zhang, Y. and W.-H. Zhu, "Electrically tunable optical devices basedon graphene-split-ringresonator periodic multilayers at mid-infrared frequencies," J. Appl. Phys., Vol. 128, 133106, 2020.
28. Palik, E. D., Handbook of Optical Constants of Solids, Academic, 1998.
29. Cai, W. and V. Shalaev, Optical Metamaterials: Fundamentals and Applications, Springer, 2009.
30. La Spada, L. and L. Vegni, "Near-zero-index wires," Opt. Express, Vol. 25, No. 20, 23699, 2017.
31. Balanis, C. A., Advanced Electromagnetic Engineering, 2nd Ed., John Wiley & Sons, New York, 2012.
32. Isakov, D. V., et al., "3D printed anisotropic dielectric composite with meta-material features," Mater. Des., Vol. 93, 423, 2016.