TY - JOUR
T1 - An invertible wavefront switching system with a high extinction ratio
AU - Lu, Yu
AU - Chen, Feng
AU - Wang, Lidai
N1 - Publisher Copyright:
© 2020
PY - 2020/11
Y1 - 2020/11
N2 - We report the development of an invertible wavefront switching system, consisting of a spatial light modulator (SLM), a diffuser, a signal beam, and a control beam. The shaped optical signal beam can be switched between on and off states by disturbing the diffuser with a control beam via thermo-optic effect. During the wavefront shaping process, the extinction ratio of the signal beam is iteratively optimized. We demonstrate a high extinction ratio of nearly 20. In addition, when the control beam is on, a switch with either on or off state can be configured to via encoding different wavefront patterns to the signal beam. This work potentially advances many physical or bio-medical applications employing all-optical switches.
AB - We report the development of an invertible wavefront switching system, consisting of a spatial light modulator (SLM), a diffuser, a signal beam, and a control beam. The shaped optical signal beam can be switched between on and off states by disturbing the diffuser with a control beam via thermo-optic effect. During the wavefront shaping process, the extinction ratio of the signal beam is iteratively optimized. We demonstrate a high extinction ratio of nearly 20. In addition, when the control beam is on, a switch with either on or off state can be configured to via encoding different wavefront patterns to the signal beam. This work potentially advances many physical or bio-medical applications employing all-optical switches.
KW - High extinction ratio
KW - Invertible system
KW - Wavefront optimization
UR - https://www.scopus.com/pages/publications/85087753511
U2 - 10.1016/j.optlastec.2020.106466
DO - 10.1016/j.optlastec.2020.106466
M3 - 文章
AN - SCOPUS:85087753511
SN - 0030-3992
VL - 131
JO - Optics and Laser Technology
JF - Optics and Laser Technology
M1 - 106466
ER -