Abstract
Electrically controllable liquid-crystal (LC) microlens arrays have been fabricated using the process of anisotropic phase separation of the LC from its solution in a ultraviolet curable prepolymer. The focal length of nematic LC-based microlens arrays can be changed in milliseconds with an applied electric field. The ferroelectric LC microlens array exhibits the memory effect and modulates the transmitted light within a few microseconds, i.e., ∼ 1000 times faster than the nematic LC-based microlens. Having no internal substructures to scatter light, these devices offer high efficiency and high light throughput that is different from polymer-dispersed devices.
| Original language | English |
|---|---|
| Pages (from-to) | 628-632 |
| Number of pages | 5 |
| Journal | Journal of Lightwave Technology |
| Volume | 23 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2005 |
Keywords
- Anisotropic phase separation
- Liquid crystal (LC)
- Memory effect
- Microlens array
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