Uchicago Argonne, LLC

Donald A Walko

Jin Wang

Deepkishore Mukhopadhyay

Daniel Lopez

Gopal Shenoy

Il-Woong Jung

Il Woong Jung

Pice Chen

Typically modulation systems are incapable of performing synchronous modulation for high-energy radiation systems. A method and system for performing high-energy synchronous radiation modulating is described. The method includes providing an oscillatory diffractive element, with the oscillatory diffractive element capable of being oscillated over a range of angles. A radiation source provides radiation to the oscillatory diffractive element. An electrical signal is provided to electrodes that oscillate the oscillatory diffractive element to modulate the radiation. A temperature controller controls the temperature of the oscillatory diffractive element to tune the oscillatory motion of the oscillatory diffractive element.

Temperature-tuned ultrafast X-ray shutter using optics-on-a-chip

A microelectromechanical device for diffracting optical beams comprises a diffractive element suspended over a channel. The diffractive element is configured to receive an optical beam and diffract and/or transmit the optical beam based on an orientation of the diffractive element. At least one torsional actuator is operatively connected to the diffractive element. The at least one torsional actuator is configured to selectively adjust the orientation of the diffractive element. The diffractive element has a diffractive element resonant frequency that is nearly the same as a resonant frequency of the optical beam.

Ultrafast photonic micro-systems

A method and apparatus are provided for implementing Bragg-diffraction leveraged modulation of X-ray pulses using MicroElectroMechanical systems (MEMS) based diffractive optics. An oscillating crystalline MEMS device generates a controllable time-window for diffraction of the incident X-ray radiation. The Bragg-diffraction leveraged modulation of X-ray pulses includes isolating a particular pulse, spatially separating individual pulses, and spreading a single pulse from an X-ray pulse-train.

Diffraction leveraged modulation of X-ray pulses using MEMS-based X-ray optics

A method and apparatus are provided for spatially modulating X-rays or X-ray pulses using microelectromechanical systems (MEMS) based X-ray optics. A torsionally-oscillating MEMS micromirror and a method of leveraging the grazing-angle reflection property are provided to modulate X-ray pulses with a high-degree of controllability.

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Woodridge, IL, United States of America

Donald A Walko