New Microslice Technology for Hyperspectral Imaging

Remote Sensing

Robert Content³  Simon Blake⁴  Colin Dunlop⁴  David Nandi⁴  Ray Sharples⁴  Gordon Talbot⁴  Tom Shanks²  Danny Donoghue¹  Nikolaos Galiatsatos¹ 

[1] Department of Geography, Durham University, South Road, Durham, DH1 3LE, UK; E-Mails:;Department of Physics, Durham University, South Road, Durham, DH1 3LE, UK; E-Mail:;Australian Astronomical Observatory, P.O. Box 915, North Ryde, NSW 1670, Australia;Centre for Advanced Instrumentation, Department of Physics, Durham University, South Road, Durham DH1 3LE, UK; E-Mails:

关键词: hyperspectral imaging;    microslice;    Integral Field Unit;    spectroscopy;    staring hyperspectral imager;   

DOI  :  10.3390/rs5031204

来源: mdpi

【 摘 要 】

We present the results of a project to develop a proof of concept for a novel hyperspectral imager based on the use of advanced micro-optics technology. The technology gives considerably more spatial elements than a classic pushbroom which translates into far more light being integrated per unit of time. This permits us to observe at higher spatial and/or spectral resolution, darker targets and under lower illumination, as in the early morning. Observations of faint glow at night should also be possible but need further studies. A full instrument for laboratory demonstration and field tests has now been built and tested. It has about 10,000 spatial elements and spectra 150 pixel long. It is made of a set of cylindrical fore-optics followed by a new innovative optical system called a microslice Integral Field Unit (IFU) which is itself followed by a standard spectrograph. The fore-optics plus microslice IFU split the field into a large number of small slit-like images that are dispersed in the spectrograph. Our goal is to build instruments with at least hundreds of thousands of spatial elements.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.