Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition
Optical bandpass filters, used to restrict certain wavelengths while allowing other wavelengths to pass, are a common element in many optical devices, such as spectroscopic sensors and hyperspectral imagers. Such filters can be implemented using interference filters, which operate on the principle o...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/8390315 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849703443181076480 |
|---|---|
| author | Anayat Ullah Muhammad Rizwan Amirzada M. D. Rifat Jahan Yousuf Khan |
| author_facet | Anayat Ullah Muhammad Rizwan Amirzada M. D. Rifat Jahan Yousuf Khan |
| author_sort | Anayat Ullah |
| collection | DOAJ |
| description | Optical bandpass filters, used to restrict certain wavelengths while allowing other wavelengths to pass, are a common element in many optical devices, such as spectroscopic sensors and hyperspectral imagers. Such filters can be implemented using interference filters, which operate on the principle of constructive and destructive interference. In this work, an interference bandpass filter with continuously varying thicknesses of the constituent films is designed and fabricated for the visible spectral range. Niobium pentoxide and silicon dioxide are used as the filter materials due to the high refractive index contrast between them, resulting in a smaller number of required material films. Ion beam sputter deposition is used as the deposition method due to its ability to produce accurate thickness high optical quality films. The fabricated filter has a transmission band of 130 nm, i.e., 470–600 nm, and can block wavelengths as low as 300 nm and as high as 1080 nm, which is sufficient for use with silicon-based detectors in the visible spectral range. The maximum and minimum transmission inside the transmission band is 96% and 71%, respectively, with an average transmission of 88%. The transmission outside the transmission band is less than 1.6%. |
| format | Article |
| id | doaj-art-1076a17819bb48119f83a3bec0ccb699 |
| institution | DOAJ |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-1076a17819bb48119f83a3bec0ccb6992025-08-20T03:17:17ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/8390315Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter DepositionAnayat Ullah0Muhammad Rizwan Amirzada1M. D. Rifat Jahan2Yousuf Khan3Department of Electronic EngineeringFaculty of Engineering and Computer ScienceDepartment of Electronics and Telecommunication EngineeringDepartment of Electronic EngineeringOptical bandpass filters, used to restrict certain wavelengths while allowing other wavelengths to pass, are a common element in many optical devices, such as spectroscopic sensors and hyperspectral imagers. Such filters can be implemented using interference filters, which operate on the principle of constructive and destructive interference. In this work, an interference bandpass filter with continuously varying thicknesses of the constituent films is designed and fabricated for the visible spectral range. Niobium pentoxide and silicon dioxide are used as the filter materials due to the high refractive index contrast between them, resulting in a smaller number of required material films. Ion beam sputter deposition is used as the deposition method due to its ability to produce accurate thickness high optical quality films. The fabricated filter has a transmission band of 130 nm, i.e., 470–600 nm, and can block wavelengths as low as 300 nm and as high as 1080 nm, which is sufficient for use with silicon-based detectors in the visible spectral range. The maximum and minimum transmission inside the transmission band is 96% and 71%, respectively, with an average transmission of 88%. The transmission outside the transmission band is less than 1.6%.http://dx.doi.org/10.1155/2022/8390315 |
| spellingShingle | Anayat Ullah Muhammad Rizwan Amirzada M. D. Rifat Jahan Yousuf Khan Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition Advances in Materials Science and Engineering |
| title | Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition |
| title_full | Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition |
| title_fullStr | Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition |
| title_full_unstemmed | Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition |
| title_short | Continuously Varying Thickness Interference Bandpass Filter for the Visible Spectral Range: Using Ion Beam Sputter Deposition |
| title_sort | continuously varying thickness interference bandpass filter for the visible spectral range using ion beam sputter deposition |
| url | http://dx.doi.org/10.1155/2022/8390315 |
| work_keys_str_mv | AT anayatullah continuouslyvaryingthicknessinterferencebandpassfilterforthevisiblespectralrangeusingionbeamsputterdeposition AT muhammadrizwanamirzada continuouslyvaryingthicknessinterferencebandpassfilterforthevisiblespectralrangeusingionbeamsputterdeposition AT mdrifatjahan continuouslyvaryingthicknessinterferencebandpassfilterforthevisiblespectralrangeusingionbeamsputterdeposition AT yousufkhan continuouslyvaryingthicknessinterferencebandpassfilterforthevisiblespectralrangeusingionbeamsputterdeposition |