کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
749245 | 894815 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fabrication and characterization of IC-Compatible Linear Variable Optical Filters with application in a micro-spectrometer Fabrication and characterization of IC-Compatible Linear Variable Optical Filters with application in a micro-spectrometer](/preview/png/749245.png)
This paper reports on an IC-Compatible process for the fabrication of Linear Variable Optical Filter (LVOF). The LVOF is integrated with a detector array to result in a micro-spectrometer. The technological challenge in fabrication of an LVOF is fabrication of a well-controlled tapered cavity layer. Very small taper angles, ranging from 0.001° to 0.1°, are fabricated in a resist layer by just one lithography step and a subsequent reflow process. The 3D pattern of resist structures is subsequently transferred into SiO2 by an appropriate etching. Complete LVOF fabrication involves CMOS-compatible deposition of a lower dielectric mirror using a stack of dielectrics on the wafer, tapered layer formation and the deposition of the top dielectric mirror. The design principle, IC-Compatible processing and the characterization results on fabricated LVOFs are presented.
Journal: Sensors and Actuators A: Physical - Volume 162, Issue 2, August 2010, Pages 400–405