Abstract
The synthesis of three-dimensional (3-D) light distributions is important for many applications. For example, in scanning applications it is preferable that the scanning beam preserve its characteristics over a large distance to yield elongated scanning range. It is evident that any 3-D light distribution must satisfy the wave equation or, in second-order approximation, the Fresnel diffraction formula. Thus many desirable 3-D light distributions may not be realizable. We propose a single optical element (OE) that synthesizes a physical beam within a certain 3-D region. The OE provides the optimal physical beam in comparison with a desired one in the sense of minimal mean-square error.
Original language | English |
---|---|
Pages (from-to) | 363-365 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 25 |
Issue number | 6 |
DOIs | |
State | Published - 15 Mar 2000 |
Externally published | Yes |