Time-refraction optics with single cycle modulation

Ultrafast Time Domain Optics of Single-cycle Laser Pulse Interaction with Materials

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Single-Molecule Real-Time 3D Imaging of the Transcription Cycle by Modulation Interferometry

Many essential cellular processes, such as gene control, employ elaborate mechanisms involving the coordination of large, multi-component molecular assemblies. Few structural biology tools presently have the combined spatial-temporal resolution and molecular specificity required to capture the movement, conformational changes, and subunit association-dissociation kinetics, three fundamental ele...

Implications of Atmospheric Differential Refraction for Adaptive Optics Observations

Many adaptive optics systems operate by measuring the distortion of the wavefront in one wavelength range and performing the scientific observations in a second, different wavelength range. One common technique is to measure wavefront distortions at wavelengths <∼1 μm while operating the science instrument at wavelengths>∼ 1 μm. The index of refraction of air decreases sharply from shorter visi...

Overlapping illusions by transformation optics without any negative refraction material

A novel method to achieve an overlapping illusion without any negative refraction index material is introduced with the help of the optic-null medium (ONM) designed by an extremely stretching spatial transformation. Unlike the previous methods to achieve such an optical illusion by transformation optics (TO), our method can achieve a power combination and reshape the radiation pattern at the sa...

REFRACTION PROBLEMS IN GEOMETRIC OPTICS April 22, 2013