Optimal data storage in nonphotosensitive media by femtosecond laser pulses

Abstract

Ultrashort lasers have become powerful tools by inducing extremely nonlinear effects in a wide variety of materials. Femtosecond laser data storage in non-photosensitive media is promising for its high density and fast retrieval. We reviewed the progress of three types of femtosecond laser storage in transparent materials: three-dimensional bit-oriented storage by micro-voids, holographic data storage by two beam interference and storage by computer-generated holograms.

*Supported by National Natural Science Foundation of China (Grant Nos. 60578017, 10434020, 10521002) and the Program for NCET

Keywords:

• femtosecond laser
• three-dimensional data storage
• holographic data storage
• computer-generated hologram

Notes

*Supported by National Natural Science Foundation of China (Grant Nos. 60578017, 10434020, 10521002) and the Program for NCET