Please use this identifier to cite or link to this item:
|Title:||Suspended slab and photonic crystal waveguides in lithium niobate|
|Citation:||Si, G., Teo, E.J., Bettiol, A.A., Teng, J., Danner, A.J. (2010). Suspended slab and photonic crystal waveguides in lithium niobate. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 28 (2) : 316-320. ScholarBank@NUS Repository. https://doi.org/10.1116/1.3327925|
|Abstract:||Suspended waveguides have been widely applied to silicon-on-insulator structures because they are easily fabricated with processing techniques similar to those of integrated circuit design. However, it is difficult to fabricate such structures in lithium niobate, which is also a very important material for optoelectronics. One main challenge is the difficulty of etching lithium niobate. In this work, the authors show a method to fabricate suspended slab waveguides in lithium niobate by combining ion implantation, focused ion beam milling, and selective wet etching techniques. The method does not involve wafer bonding or crystal ion slicing and is entirely monolithic. Lattice damage can be introduced to a buried thin layer of a certain depth beneath the sample surface by ion implantation, resulting in a considerable wet etching selectivity to bulk material. The etching rate has been investigated to control the size of the suspended membrane. Fabrication of suspended photonic crystal waveguides has also been demonstrated. The results show an effective method of fabricating suspended devices in lithium niobate, which enables new applications such as waveguides, modulators, and infrared detectors. © 2010 American Vacuum Society.|
|Source Title:||Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 12, 2018
WEB OF SCIENCETM
checked on Jun 5, 2018
checked on Jun 30, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.