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People around me, friends, family, parents, always ask me: “what do you study in your PhD? ” It is always difficult to explain my research to someone who doesn’t study physics, even to someone who does, like colleagues sharing my office. My general and ambiguous answer is “ I’m a hardware designer of “a magic mirror” which can focus light in a micro scale with a flat surface. It can be applied for a new generation of light computers which use light or photons to compute in a faster way.” “para un super, super rapido ordenador…” Their responses are unsurprisingly similar. “How…interesting…” “Que…interesante…” The conversation about my research always stops there and never continues again. Now, I can bring them this magazine, with my signature, and show directly what I study, “Look, this is what I do.” “Mira, mi libro…” I’m sure they will understand everything, well perhaps not everything, but at least read the first chapter, the introduction of flat focusing mirrors. Perhaps, except of my daughter, she will take it as her drawing book.

List of Publications 1.


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M. Botey, Y.C. Cheng, V. Romero-Garcia, R. Picó, R. Herrero, V. Sánchez-Morcillo, and K. Staliunas, “Unlocked evanescent waves in periodic structures,” Opt. Lett. 38, 1890 (2013). Y. C. Cheng, M. Peckus, S. Kicas, J. Trull, C. Cojocaru, R. Vilaseca, R. Drazdys, and K. Staliunas, “Beam focusing in reflection from flat chirped mirrors,” Phys. Rev. A 87, 045802 (2013). Y. C. Cheng, S. Kicas, J. Trull, M. Peckus, C. Cojocaru, R. Vilaseca, R. Drazdys, and K. Staliunas, “Flat Focusing Mirror,” Sci. Rep. 4:6326 (2014). Y. C. Cheng, J. Redondo and K. Staliunas, “Beam focusing in reflections from flat subwavelength diffraction gratings,” Phys. Rev. A 89, 33814 (2014). Y. C. Cheng, H. Zeng, J. Trull, C. Cojocaru, M. Malinauskas, T. Jukna, D. S. Wiersma, and K. Staliunas, “Beam focalization in reflection from flat dielectric subwavelength gratings,” Opt. Lett. 39, 6086 (2014). Y. C. Cheng and K. Staliunas, “Negative Goos-Hänchen shift in reflection from subwavelength gratings,” J. Nanophotonics, 8, 084093 (2014). C. H. Ho, Y. C. Cheng, L. Maigyte, H. Zeng, J. Trull, C. Cojocaru, D. S. Wiersma and K. Staliunas, “Controllable light diffraction in woodpile photonic crystals filled with liquid crystal,” Appl. Phys. Lett. 106, 021113 (2015) A. Cebrecos, V. Romero-García, R. Picó, V. J. Sánchez-Morcillo, M. Botey, R. Herrero, Y. C. Cheng, K. Staliunas,“ Acoustically penetrable sonic crystals based on fluid-like scatterers,” J. Phys. D: Appl. Phys. 48 025501 (2015). Y. C. Cheng, S. Kicas and K. Staliunas, “Flat focusing in reflection from a chirped dielectric mirror with a defect layer,” J. Nanophotonics 9, 093084 (2015).

Profile for Yu-chieh Cheng

Thesis yu chieh cheng 2015  

Thesis yu chieh cheng 2015