Abstract

Theoretically predicted hard excitation of optical hexagons in photorefractive crystals is studied experimentally in barium titanate. The well-developed hysteresis loop is discovered in the dependence of the hexagon intensity on the crystal coupling strength proving the hard mode of the oscillation onset. The analogy of the excitation threshold for optical hexagon and first order optical phase transition is revealed.

© 1999 Optical Society of America

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription