Delayed and advanced two-dimensional image propagation through image resonator

Ingo Fischer, Laurent Larger

Makoto Tomita, Parvin Sultana, Akira Takami +1 more

We performed optical image propagation experiments in an image resonator consisting of a Fabry-Perot resonator in reflection geometry. Two-dimensional images encoded on optical pulses of 32ns were stored, and either advanced, -6.0ns, or delayed, 10.9ns, using the dispersion relation relevant to the image resonator, in the under- or over- coupling condition, respectively. The overall images are propagated through the resonator clearly, while the diffraction effects were analyzed both in real-space and in k-space.

Parvin Sultana, Takahiro Matsumoto, Makoto Tomita

We propagated transverse two-dimensional images encoded on optical pulses through a frequency window of coupled-image-resonator-induced transparency. The optical images are stored and delayed by 10.6 ns.

Uwe van Bürck

Parvin Sultana, Takahiro Matsumoto, Makoto Tomita

We applied Fourier space analysis to a comprehensive study of the propagation of pulsed two-dimensional images through single and coupled image resonators. The Fourier method shows that the image can propagate through the resonator successfully as long as the spatial and temporal Fourier components of the image are within the bandwidth of the amplitude and phase transfer functions. The relevant steep dispersion of the cavity can yield delayed or advanced images. The Fourier method reproduces characteristic aspects of the experimental observations of the image propagation, and also predicts new aspects, such as the spatial image profile dependence on the observation time and the coupling strength. To demonstrate the time evolution of the experiment, space- and time-resolved image propagations were performed using a streak camera.

Smriti Jaiswal