Go Terps! Go Terps!



Astrophotonics is the happy marriage of astronomy/astrophysics and photonics.

Astronomy is the scientific study of celestial objects outside the Earth's atmosphere. Astrophysics is the branch of astronomy that deals with the physics and physical properties of these celestial objects, such as their luminosity, age, and composition.

Photonics is the use of materials to manipulate light, involving emission, transmission, processing, and detection of light sources. It is the equivalent of electronics but applied to photons (both particle and wave) rather than electrons. The telecommunication and information technology revolution of recent decades is a direct result of advances in optics that have allowed higher bandwidths over longer distances. This in turn has ushered in the Information Age.

Astrophotonics is where these areas meet. And while the applications for astronomical equipment are many and varied, many of the devices developed through astrophotonics have applications in the wider world, in applications ranging from communications to medicine and beyond.

Astrophotonics at Maryland is a multi-faceted collaboration that involves the University of Maryland's College of Computer, Mathematical and Natural Sciences and the A. James Clark School of Engineering, along with the NASA Goddard Space Flight Center and the University of Sydney Institute of Photonics and Optics. Led by Prof. Sylvain Veilleux from Maryland's Department of Astronomy (ASTR), the interdisciplinary team of several renowed experts in science and engineering (including a Nobel Laureate in Physics) has worked together for 20 years and has received worldwide acclaim during the last decade in particular for achievements in astrophotonics.

MAPL = The Maryland AstroPhotonics Laboratory

MAPL, the Maryland AstroPhotonics Laboratory, is located in the Jeong H. Kim Engineering Building on the campus of the University of Maryland. Co-directed by Profs. Sylvain Veilleux (ASTR) and Mario Dagenais (Electrical and Computer Engineering or ECE), MAPL is used for the testing, characterization, and integration of astrophotonic components fabricated in the FabLab of the Maryland NanoCenter.

On-Going: The Keck Photonic Spectrometer (KPS)

On-Going: The Maryland OH Suppression IFU System (MOHSIS)


  • Astronomy: Next-genetation fully photonic miniaturized spectrometers for Extremely Large Telescopes (ELTs)
    • Highly multiplexed near-infrared wide field two-dimensional imaging spectroscopy ("integral field spectroscopy" or IFS)
    • Highly multiplexed near-infrared multi-object spectroscopy (or MOS)
    • High-resolution (R = λ / δ λ >> 10000) near-infrared spectroscopy
    • Spectroscopy at optical/near-UV and mid-infrared wavelengths
  • Other Applications
    • Space: next-generation space telescopes, planetary probes, remote sensing of the Earth's atmospheric chemistry to improve understanding of Earth's climate
    • Industry: near-infrared spectroscopy to trace alcohols and water in pharmaceutical, medical, petrochemical, and food products

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