Overstepping the upper refractive index limit to form ultra-narrow photonic nanojets
Abstract In general, photonic nanojets (PNJs) occur only when the refractive index (Ri) difference between the microparticle and background media is less than 2. The minimum full width at half-maximum (FWHM) of the PNJ is ~130 nm (approximately one-third of the illumination wavelength λ = 400 nm) fo...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2017-07-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-05781-4 |