It is shown that due to high speed and large volume of production, anisotropic wet etching of Si is a unique method of manufacturing high quality micropyramidal arrays for silicon photonics. Four types of arrays were fabricated: (i) square pyramids with the 54.7º slope of the sidewall surface, (ii) microcones with the 45º slope of sidewall surface, (iii) inverted square pyramids with 54.7º slope, and (iv) inverted triangular pyramids with different angles of the sidewalls. It is shown that the first type of arrays has a capability to produce tightly focused mid-wave infrared (MWIR) beams at the tips of the pyramids. Other arrays can be also used as light concentrators and various multifunctional microphotonic components.
Anisotropic Wet Etching of Si as a Fabrication Tool Enabling 3-D Microphotonics Structures and Devices
2021-08-16
13276463 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Microphotonics Devices based on Silicon Micro-Fabrication Technology
British Library Conference Proceedings | 2003
|Polymer microphotonics [5225-10]
British Library Conference Proceedings | 2003
|High-index-contrast bend structures for microphotonics
IEEE | 2003
|G-1(Invited) Si Microphotonics
British Library Conference Proceedings | 2002
|