Formation of collimated beams behind the woodpile photonic crystal

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.033812· OSTI ID:22072178

Trull, J; Maigyte, L; Cojocaru, C ^[1]; Mizeikis, V ^[2]; Malinauskas, M; Rutkauskas, M; Peckus, M; Sirutkaitis, V ^[3]; Juodkazis, S ^[4]; Staliunas, K ^[1]

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1. Departament de Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya, Colom 11, E-08222 Terrassa, Barcelona (Spain)
2. Division of Global Research Leaders (Research Institute of Electronics), Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561 (Japan)
3. Laser Research Center, Department of Quantum Electronics, Vilnius University, Sauletekio al 10, LT-10222 Vilnius (Lithuania)
4. Swinburne University of Technology, Centre for Micro-Photonics, John Street, Hawthorn, VIC 3122 (Australia)

We experimentally observe formation of narrow laser beams behind the woodpile photonic crystal, when the beam remains well collimated in free propagation behind the crystal. We show that the collimation depends on the input laser beam's focusing conditions, and we interpret theoretically the observed effect by calculating the spatial dispersion of propagation eigenmodes and by numerical simulation of paraxial propagation model.

• OSTI ID: 22072178
• Journal Information: Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPUTERIZED SIMULATION
DISPERSIONS
FOCUSING
INTERFERENCE
LASERS
PHOTON BEAMS