Flexible Photonic Nanojet Formed by Cylindrical Graded-Index Lens
Photonic nanojets formed in the vicinity of the cylindrical graded-index lens with different types of index grading are numerically investigated based on the finite-difference time-domain method. The cylindrical lens with 1600 nm diameter is assembled by eighty-seven hexagonally arranged close-conta...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/9/4/198 |