Single-step fabrication of strongly confining quasiphase-matching waveguides in LiTaO3

Zhao, Cangsang; Engelmann, Reinhart
December 1996
Applied Physics Letters;12/9/1996, Vol. 69 Issue 24, p3623
Academic Journal
Strongly confining waveguides were fabricated in LiTaO3 at high temperature (540–610 °C) by short-time (≤6 s) rapid thermal annealing. Single-step photolithography is able to accomplish the simultaneous fabrication of a waveguide and a periodically domain-inverted structure for second-order quasiphase-matching blue-light generation. A measured normalized conversion efficiency of 7%/W cm2 for a physical length of 0.55 mm in a planar quasiphase-matching waveguide showed that this single-step process can lead to high conversion efficiency in channel waveguides. © 1996 American Institute of Physics.


Related Articles

  • Photonic crystal is immune to backscattering.  // Laser Focus World;Nov2009, Vol. 45 Issue 11, p9 

    The article reports on the microwave magneto-optical photonic crystal waveguide which produces quantum Hall effect in the U.S. It notes that photonic crystal will form electromagnetic chiral edge state which allows photons to travel in certain directions. Moreover, reduction of microwave...

  • Fabrication of Ge nanocrystals doped silica-on-silicon waveguides and observation of their strong quantum confinement effect. Ou, H.; Rottwitt, K. // Applied Physics B: Lasers & Optics;Jul2009, Vol. 96 Issue 1, p57 

    Germanium (Ge) nanocrystals embedded in silica matrix is an interesting material for new optoelectronic devices. In this paper, standard silica-on-silicon waveguides with a core doped by Ge nanocrystals were fabricated using plasma enhanced chemical vapour deposition and reactive ion etching....

  • Photonic crystal waveguides: Compressing slow solitons. Skryabin, Dmitry V.; Knight, Jonathan C. // Nature Photonics;Dec2010, Vol. 4 Issue 12, p806 

    The article discusses on a research study regarding the compression of optical solitons in nanoscale planar photonic crystal waveguides. It states the experiments with the planar nanowaveguides to be focused on the silicon-on-insulator platform benefitting from nonlinearity, controllable group...

  • Multichannel filters via Γ-M and Γ-K waveguide coupling in two-dimensional triangular-lattice photonic crystal slabs. Ya-Zhao Liu; Rong-Juan Liu; Shuai Feng; Cheng Ren; Hai-Fang Yang; Dao-Zhong Zhang; Zhi-Yuan Li // Applied Physics Letters;12/15/2008, Vol. 93 Issue 24, p241107 

    We demonstrate the design, fabrication, and characterization of a multichannel filter in a two-dimensional triangular-lattice photonic crystal slab. The output signal channel, which directs in the Γ-M crystalline direction, is orthogonal to the input signal channel that directs in the...

  • Theoretical Investigation of an Interferometer-type Plasmonic Biosensor Using a Metal-insulator-silicon Waveguide. Kwon, Min-Suk // Plasmonics;Dec2010, Vol. 5 Issue 4, p347 

    This work proposes and investigates theoretically a biosensor that is an integrated plasmonic Mach-Zehnder interferometer. The biosensor consists of three sections. The first and third sections are input and output dielectric waveguides whose core is a silicon film. The second section is a...

  • Fibres get functional. Graham-Rowe, Duncan // Nature Photonics;Feb2011, Vol. 5 Issue 2, p66 

    The article focuses on the functionality of advanced optical fibres in transmission of light, electric signals, and in the development of light waveguides. It says that the fundamental design of optical fibres allowed researchers to create devices that can detect or emit light which yields the...

  • Fabrication of 0.5 nm electrode gaps using self-breaking technique. Tsutsui, Makusu; Taniguchi, Masateru; Kawai, Tomoji // Applied Physics Letters;10/20/2008, Vol. 93 Issue 16, p163115 

    Control of electrode gap size formed by a self-breaking method is explored by statistically investigating electric field dependence of the gap distance using nanofabricated mechanically controllable break junctions. We obtained narrow distributions of the electrode gap size around 0.5 nm at...

  • Terahertz surface plasmon propagation in nanoporous silicon layers. Lo, Shu-Zee A.; Murphy, Thomas E. // Applied Physics Letters;5/17/2010, Vol. 96 Issue 20, p201104 

    We describe the fabrication and measurement of a terahertz surface plasmon waveguide in which the optical mode is localized within a nanoporous silicon slab. We compare the propagation characteristics among waveguides with different porous layer thickness, and present an analytical model that...

  • Fabrication of 5-7 nm wide etched lines in silicon using 100 keV electron-beam lithography and.... Wei Chen; Ahmed, Haroon // Applied Physics Letters;3/29/1993, Vol. 62 Issue 13, p1499 

    Demonstrates the fabrication of wide etched lines in Si using electron-beam lithography and polymethylmethacrylate (PMMA) resist. Mechanisms in determining the development of linewidth in resist; Importance of intermolecular force in determining PMMA properties; Elimination of resist swelling...

  • Rapid prototyping. Berard, M.F. // Ceramic Industry;Dec97, Vol. 147 Issue 13, p78 

    Discusses some rapid prototyping (RP) and solid free-form fabrication (SFF) tools of manufacturing organizations. Technological advances in RP; Discussion of stereolithography; Use of ultraviolet light exposure for prototyping.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics