Abstract
The feasibility of ultra high density multi-layer disk recording by two-photon absorption was analyzed. A photochromic doped polymeric Write Once Read Many (WORM) disk media was used for two-photon recording. A high power short pulse laser beam was tightly focused for recording. The recording occurred only within a small volume around the focus of the laser beam due to two-photon absorption, and hence allowed high density recording. The recording response of the material followed the square of the optical system point spread function (PSF) resulting in a recorded bit size that was 30% less than the Rayleigh criterion PSF.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5362 |
| DOIs | |
| State | Published - 2004 |
| Externally published | Yes |
| Event | Advanced Optical and Quantum Memories and Computing - San Jose, CA, United States Duration: Jan 27 2004 → Jan 28 2004 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering