Measuring the sun''s coronal green line from Earth
Combining a robust, classically designed coronagraph with liquid-crystal-based focal plane instrumentation enables effective Earth-based observations of the sun''s corona.
Sulfur copolymers for IR optics
A novel polymer made from sulfur is easily molded and has superior transmission properties in the IR from 600nm up to 6?m with a 1?m stop band.
Monitoring machining temperature using optical fibers
An IR fiber-optic pyrometer measures temperatures above 250?C close to rotating components where other sensing techniques are unsuitable.
Creating bi-functional metasurfaces
Transformation optics and geometrical optics theories are used to design novel anisotropic devices.
Enabling compact, high resolution spectrometry
The implementation of polarization gratings enables a new kind of compact monolithic spectrometer capable of high spectral resolution with wide application in spectral measurements.
An optical system design for the Atacama Large Millimeter Array
A new baseline design for Band 1 (35-52GHz) will allow an increased range of observation, enabling additional information to be obtained during studies.
Novel flexible LED modules
A 28m-long light engine constructed with mid-power LEDs on a polyethylene terephthalate substrate has the potential to be a cost-efficient alternative to linear fluorescent tubes.
Three-dimensional invisibility cloaks functioning at terahertz frequencies
Both the geometric and spectroscopic signatures of an object were completely concealed under 3D terahertz invisibility cloaks made of either homogeneous or inhomogeneous media.
Small-size telescope array for gamma-ray astronomyStories 1 - 10 of 91
Seven telescopes with a novel dual-mirror configuration are proposed as part of the Cherenkov Telescope Array.