Search
Menu
Photonics SuppliersAstronomical Optics
Full company details
Zygo Corporation
Map21 Laurel Brook Rd.
Middlefield, CT 06455
United States
Phone: +1 860-347-8506
Toll-free: +1 800-ZYGO NOW

Fast Shaping Control of X-Ray Beams Using a Closed-Loop Adaptive Bimorph Deformable Mirror

Author: Simon G. Alcock, Ioana-Theodora Nistea, Vivek G. Badami, Riccardo Signorato, Matteo Fusco, Lingfei Hu, Hongchang Wang, and Kawal Sawhney Monday, November 6, 2023
High-speed adaptive correction of optics, based on real-time metrology feedback, has benefitted numerous scientific communities for several decades. However, it remains a major technological challenge to extend this concept into the hard x ray regime due to the necessity for active mirrors with single-digit nanometer height errors relative to a range of aspheric forms. We have developed a high-resolution, real-time, closed-loop “adaptive” optical system for synchrotron and x ray free electron laser (XFEL) applications. After calibration of the wavefront using x ray speckle scanning, the wavefront diagnostic was removed from the x ray beam path. Non-invasive control of the size and shape of the reflected x ray beam was then demonstrated by driving a piezoelectric deformable bimorph mirror at ~1 Hz. Continuous feed-back was provided by a 20 kHz direct measurement of the optical surface with picometer sensitivity using an array of interferometric sensors. This enabled a non-specialist operator to reproduce a series of pre-defined x ray wavefronts, including focused or non-Gaussian profiles, such as flattop intensity or multiple split peaks with controllable separation and relative amplitude. Such changes can be applied in any order and in rapid succession without the need for invasive wavefront diagnostic sensors that block the x ray beam for scientific usage. These innovations have the potential to profoundly change how x ray focusing elements are utilized at synchrotron radiation and XFEL sources and provide unprecedented dynamic control of photon beams to aid scientific discoveries in a wide range of disciplines.

More white papers
Download White Paper
File: Zygo_Fast_Shaping_Control_of_XRay_Beams.pdf (10.77 MB)
To download this white paper, please complete the *required fields before clicking the "Download" button.
Your contact information
* First Name:
* Last Name:
* Email Address:
* Company:
Address:
Address 2:
City:
State/Province:
Postal Code:
* Country:
Phone #:
Fax #:

Register or login to auto-populate this form:
Login Register
* Required

When you click "Send Request", we will record and send your personal contact information to Zygo Corporation by email so they may respond directly. You also agree that Photonics Media may contact you with information related to this inquiry, and that you have read and accept our Privacy Policy and Terms and Conditions of Use.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.