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Massachusetts Institute of Technology Chiyan Luo Michelle Povinelli Dr. Steven Johnson

Annual Review 2004. Photonic Crystals as Metamaterials. Massachusetts Institute of Technology Chiyan Luo Michelle Povinelli Dr. Steven Johnson J. D. Joannopoulos. DoD MURI on Metamaterials. Negative Refraction, Sub-wavelength Imaging, and Superprism Phenomena in Photonic Crystals.

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Massachusetts Institute of Technology Chiyan Luo Michelle Povinelli Dr. Steven Johnson

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  1. Annual Review 2004 Photonic Crystals as Metamaterials Massachusetts Institute of Technology Chiyan Luo Michelle Povinelli Dr. Steven Johnson J. D. Joannopoulos DoD MURI on Metamaterials

  2. Negative Refraction, Sub-wavelength Imaging, and Superprism Phenomena in Photonic Crystals • Exploration of negative refraction, superlensing, and superprism (phase-related) phenomena in photonic crystal systems. Extension of Microwave Left-Handed Material Behavior to Optical Frequencies. (Pendry, Chen, and Schultz/Smith) Journal publications: Luo, C., Johnson, S. G., Joannopoulos, J.D., and Pendry, J.B., “Subwavelength Imaging in Photonic Crystals,”Physical Review B 68, 045115 (2003). Luo, C., and Joannopoulos, J.D., Book Chapter in “Negative Refraction Metamaterials: Fundamental Properties & Applications,”John Wiley & Sons in press (2004). Luo, C., Soljacic, M., and Joannopoulos, J.D., “Superprism Effect Based on Phase Velocities,”Optics Letters29, 745-747 (2004).

  3. AANR with a positive group velocity & positive effective index of refraction q = 450, w= 0.195 (2pc/a) Field Intensity e ~ 12

  4. q = 450, w= 0.195 (2pc/a), narrow beam width q = 230, w= 0.195 (2pc/a), broad beam width

  5. Chen, Schultz/Smith e ~ 38 w ~ 5.97GHz Subwavelength imaging by coupling to bound surface states z e ~ 12 x pbg lens Rayleigh criterion for infinite-aperture lens: 0.50l Photonic crystal (black dashed curve): 0.22l

  6. Photonic Crystal Phase-velocity Superprism argument: Photonic Crystal Group-velocity Superprism argument:

  7. incident Dj = 10 leads to transmitted Dj = 200

  8. Photonic Crystal Structures For Enhanced Thermal Radiation • Exploration of Kirchoff’s law and investigation of lossy metallodielectric photonic crystals as efficient emitters of thermal radiation. (Chen, Pendry) Journal publications: Luo, C., Joannopoulos, J.D., Narayanaswamy, A., and Chen, G., “Thermal Radiation from Photonic Crystals: A Direct Calculation,”PRL, submitted for publication(2004).

  9. Enhancement of Thermal Radiation from Photonic Crystals Photonic Crystal System: Square lattice of lossy metallic rods in air consisting of: Separate calculations of Absorptivity (from transmission & reflection simulations) Emissivity (from ensemble averaged radiation in numerical simulations using Langevin approach to thermal fluctuations of EM field)

  10. Future Directions: Continue theoretical support of experimental (Chen, Schultz/Smith) investigations of subwavelength imaging at microwave lengthscales. Extend this work to 2D/3D metallodielectric photonic crystals at infrared lengthscales (Chen). Explore negative effective permeability at optical lengthscales using polariton photonic crystals (Pendry). Continue investigation of superprism phenomena in 3D periodic photonic crystal systems. Continue investigation of thermal radiation from 3D photonic crystal systems (Chen). Explore photonic crystal Cerenkov radiation as a potential source of radiation at frequencies of interest, e.g. as a source for THz radiation (Schultz/Smith, Chen).

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