DOI QR코드

DOI QR Code

다중-노출 홀로그라피 방법을 이용한 광자준결정 제작

Fabrication of Photonic Quasicrystals using Multiple-exposure Holographic Method

  • 윤상돈 (전남대학교 대학원 신화학소재공학과) ;
  • 여종빈 (전남대학교 대학원 신화학소재공학과) ;
  • 이현용 (전남대학교 응용화학공학부, 촉매연구소)
  • 발행 : 2008.09.01

초록

Two-dimensional photonic quasicrystal (PQCs) template patterns have been fabricated on a 1.1 ${\mu}m$-thick DMI-150 photoresist using a multiple-exposure holographic method. A 442-nm HeCd laser was utilized as a light source and the holographic exposure was carried out at a fixed angle of ${\theta}$ = 6$^{\circ}$. After the first holographic exposure, the sample was rotated to a proper angle and the second exposure was performed to the same manner. This exposure process was repeated n/2 times to obtain n-fold symmetric PQC patterns and then the sample was developed. The diffraction patterns of the fabricated PQC template were observed using a 632.8-nm HeNe laser. The fabricated PQCs exhibited 8, 10 and 12-fold rotational symmetry, which was in a good agreement with the interference simulation results. In addition, the diffraction patterns with n-rotation symmetry were observed for the corresponding n-fold PQCs. We believe that the multiple-exposure holography is a good method to fabricate the mesoscale PQCs with a high rotational symmetry.

키워드

참고문헌

  1. E. Yablonovitch, "Photonic crystals", Journal of Modern Optics, Vol. 41, No. 2, p. 173, 1994 https://doi.org/10.1080/09500349414550261
  2. E. Yablonovitch, "Photonic band-gap crystals", J. Phys.: Condensed Matter, Vol. 5, No. 16, p. 2443, 1993 https://doi.org/10.1088/0953-8984/5/16/004
  3. Y. S. Chan, C. T. Chan, and Z. Y. Liu, "Photonic band gaps in two dimensional photonic quasicrystals", Phys. Rev. Lett., Vol. 80, No. 5, p. 956, 1998 https://doi.org/10.1103/PhysRevLett.80.956
  4. M. E. Zoorob, M. D. B. Chariton, G. J. Parker, J. J. Baumberg, and M. C. Netti, "Complete photonic bandgaps in 12-fold symmetric quasicrystals", Nature, Vol. 404, p. 740, 2000 https://doi.org/10.1038/35008023
  5. J. D. Joannopoulus, R. D. Meade, and J. N. Winn, "Photonic crystals; Modeling the flow of light", Princeton University Press, 1995
  6. J. Romero-Vivas, D. N. Chigrin, A. V. Lavrinenko, and C. M. Sotomayor Torres, "Photonic quasicrystals for application in WDM systems", phys. Stat., Vol. 202, p. 997, 2005 https://doi.org/10.1002/pssa.200460717
  7. J. B. Yeo, S. D. Yun, and H. Y. Lee, "Realization of dot and antidot-type two dimensional photonic crystals by double holographic method", J. Appl. Phys., Vol. 102, No. 8, p. 084502, 2007 https://doi.org/10.1063/1.2799077
  8. 여종빈, 윤상돈, 이현용, "광자결정 제작을 위한 홀로그라피 공정연구", 전기전자재료학회논문지, 20권, 8호, p. 726, 2007 https://doi.org/10.4313/JKEM.2007.20.8.726
  9. J. B. Yeo, S. D. Yun, and H. Y. Lee, "influence of substrate and structure on Ag-photodoping into amorphous GeSe films by using aholographic method", J. Korean Phys. Soc., Vol. 52, No. 2, p. 345, 2007 https://doi.org/10.3938/jkps.52.435
  10. M. A. Kaliteevski, S. Brand, R. A. Abram, T. F. Krauss, P. Millar, and R. De La Rue, "Diffraction and transmission of light in low refractive index Penrose-tiled quasicrystals", J. Phys.: Condens. Matter, Vol. 13, p. 10459, 2001 https://doi.org/10.1088/0953-8984/13/46/314
  11. M. A. Kaliteevski, S. Brand, R. A. Abram, T. F. Krauss, R. M. De La Rue, and P. Millar, "Two-dimensional penrose-tiled photonic quasicrystals: From diffraction to band structure", Nanotechnology, Vol. 11, p. 274, 2000 https://doi.org/10.1088/0957-4484/11/4/316
  12. X. Zhang, Z.-Q. Zhang, and C. T. Chan, "Absolute photonic band gaps in 12-fold symmetric photonic quasicrystals", Phys. Rev., B, Vol. 63, p. 081105, 2001 https://doi.org/10.1103/PhysRevB.63.081105
  13. J. Romero-Vivas, D. Chigrin, A. Lavrinenko, and C. Sotomayor Torres, "Resonant add- drop filter based on a photonic quasicrystal", Optics Express, Vol. 13, p. 826, 2005 https://doi.org/10.1364/OPEX.13.000826

피인용 문헌

  1. Characteristics of the Photonic Bandgaps in Two-dimensional Photonic Crystals with a Square Lattice by FDTD Simulation vol.22, pp.1, 2009, https://doi.org/10.4313/JKEM.2009.22.1.061