Simultaneous shaping of amplitude and phase of light in the entire output plane with a phase-only hologram.
An iterative beam shaping algorithm is proposed to simultaneously shape the amplitude and phase of an optical beam. The proposed algorithm consists of one input plane and two completely overlapped output planes which refer to the output plane in real space. The two output planes are imposed with both amplitude and phase constraints, and the constrained areas in the two output planes are complementary. As a result, both the amplitude and phase in the entire output plane are controllable and arbitrary target complex amplitudes can be achieved with the proposed algorithm. The computing result of the proposed algorithm is a phase-only distribution which can be conveniently realized with a spatial light modulator or a fabricated diffractive optical element. Both simulations and experiments have verified the high performance of the proposed algorithm.
School of Physics and Electronics, Central South University, Changsha 410083, China.
Liang
L
Wu
School of Physics and Electronics, Central South University, Changsha 410083, China.
Shubo
S
Cheng
School of Physics and Electronics, Central South University, Changsha 410083, China.|Hunan Key Laboratory of Super Microstructure and Ultrafast Process, Central South University, Changsha 410083, China.
Shaohua
S
Tao