Holographic interferometry is the technique of measuring stress, strain, and vibration with light. It is defined by the wavelength of light, finding flaws in structural bonds. It makes full use of a ...

Prof Stephen Hawking’s closest collaborator explains emerging evidence supporting the cosmologist’s final thoughts on time ...

Purdue faculty dedicate countless hours to exploring the frontiers of their respective fields, pushing the boundaries of knowledge and contributing to the ever-evolving landscape of academia. To ...

Engineers and technicians working on the James Webb Space Telescope successfully completed the first important optical measurement of Webb’s fully assembled primary mirror, called a Center of ...

Computer generated holographical reference objectives for quality control of aspherical and spherical surfaces as well as optical systems. Software support for closed loop asphere manufacturing.

Powell and Stetson 1 have shown that holography can be used to study the vibration modes of a surface. The technique they employed was to record a hologram while the surface was actually vibrating.

Digital holography and incoherent imaging techniques have emerged as transformative tools in modern optical science, enabling the capture and reconstruction of three‐dimensional images with ...

This video provides an in-depth look at Zygo’s Verifire Asphere+ (VFA+), a cutting-edge laser interferometer designed for high-precision optical measurement. B. Griel, Associate Product Manager, ...