Strong improvement in the photonic stop-band edge sharpness of a lithium niobate photonic crystal slab | Zendy

S. Diziain | Zendy; Scott Harada | Zendy; Roland Salut | Zendy; Paul Muralt | Zendy; M.P. Bernal | Zendy

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Strong improvement in the photonic stop-band edge sharpness of a lithium niobate photonic crystal slab

Author(s) -

S. Diziain,

Scott Harada,

Roland Salut,

Paul Muralt,

M.P. Bernal

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3223595

Subject(s) - lithium niobate , materials science , photonic crystal , wafer , optoelectronics , photonics , pulsed laser deposition , thin film , etching (microfabrication) , optics , substrate (aquarium) , slab , photonic integrated circuit , layer (electronics) , nanotechnology , oceanography , physics , geophysics , geology

International audienceWe report on a photonic crystal PhC etched into a 380 nm thick lithium niobate LN thin film deposited on a MgO substrate by pulsed laser deposition. The transmission properties of this device were assessed by optical near-field measurements and compared to the transmission spectra of the same PhC drilled into bulk LN and calculated by a two dimensional finite-difference time domain method. We show a strong improvement in the transmission properties of the LN PhC by etching it into a thin layer rather than into a 500 m thick wafer. This result appears to be very promising for applications based on LN tunable PhCs. © 2009 American Institute of Physic

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