Abstract
High longitudinal selectivity of the shifting multiplexing with spherical reference wave is proposed and demonstrated. A simplified method based on wave optics is used for calculating the selectivity, and the result fits well the experimental measurement. Under the paraxial condition, a simple formula for the longitudinal selectivity is introduced. With use of an object lens with effective NA = 0.817, we obtain that an FWHM of selectivity is as small as 1 μm.
Original language | English |
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Pages (from-to) | 523-526 |
Number of pages | 4 |
Journal | Optics and Laser Technology |
Volume | 34 |
Issue number | 7 |
DOIs | |
State | Published - Oct 2002 |
Keywords
- Confocal microscope
- Holography storage
- Photorefractive crystal
- Shifting sensitivity
- Volume hologram