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Hexagonally poled lithium niobate: a two-dimensional nonlinear photonic crystal

Hexagonally poled lithium niobate: a two-dimensional nonlinear photonic crystal
Hexagonally poled lithium niobate: a two-dimensional nonlinear photonic crystal
We report on the fabrication of what we believe is the first example of a two-dimensional (2D) nonlinear photonic crystal [Berger, Phys. Rev. Lett. 81, 4136 (1998)], where the refractive index is constant but where the 2nd order nonlinear susceptibility is spatially periodic. Such crystals allow for efficient quasi-phase-matched 2nd harmonic generation using multiple reciprocal lattice vectors. External 2nd harmonic conversion efficiencies >60% were measured with picosecond pulses. The fabrication technique is extremely versatile and should allow for the fabrication of a broad range of 2D crystals including quasicrystals.
4345-4348
Broderick, N.G.R.
4cfa2c7c-097a-48d6-b221-4e92ad1c6aea
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Offerhaus, H.L.
75130d34-dbad-4f37-bbd4-08fa7c0f9d4b
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Broderick, N.G.R.
4cfa2c7c-097a-48d6-b221-4e92ad1c6aea
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Offerhaus, H.L.
75130d34-dbad-4f37-bbd4-08fa7c0f9d4b
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Broderick, N.G.R., Ross, G.W., Offerhaus, H.L., Richardson, D.J. and Hanna, D.C. (2000) Hexagonally poled lithium niobate: a two-dimensional nonlinear photonic crystal. Physical Review Letters, 84 (19), 4345-4348.

Record type: Article

Abstract

We report on the fabrication of what we believe is the first example of a two-dimensional (2D) nonlinear photonic crystal [Berger, Phys. Rev. Lett. 81, 4136 (1998)], where the refractive index is constant but where the 2nd order nonlinear susceptibility is spatially periodic. Such crystals allow for efficient quasi-phase-matched 2nd harmonic generation using multiple reciprocal lattice vectors. External 2nd harmonic conversion efficiencies >60% were measured with picosecond pulses. The fabrication technique is extremely versatile and should allow for the fabrication of a broad range of 2D crystals including quasicrystals.

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Published date: 2000

Identifiers

Local EPrints ID: 13653
URI: https://eprints.soton.ac.uk/id/eprint/13653
PURE UUID: 8db27b86-58c8-46d6-9d9a-fa1f97f5316c
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 06 Jan 2005
Last modified: 06 Mar 2019 01:37

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