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02068 am a22003493u 4500 |
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70543 |
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|a Blanchard, R.
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|a Lincoln Laboratory
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|a Wang, Christine A.
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|a Wang, Christine A.
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|a Menzel, S.
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|a Pflugl, C.
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|a Diehl, L.
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|a Wang, Christine A.
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|a Huang, Y.
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|a Ryou, J.-H.
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|a Dupuis, R. D.
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|a Negro, L. Dal
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|a Capasso, Federico
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|a Gratings with an aperiodic basis: single-mode emission in multi-wavelength lasers
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|b Institute of Physics Publishing,
|c 2012-05-09T15:39:24Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/70543
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|a We propose a new class of gratings having multiple spatial frequencies. Their design relies on the use of small aperiodic grating sequences as unit cells whose repetition forms a superlattice. The superlattice provides well-defined Fourier components, while the choice of the unit cell structure enables the selection, modulation or suppression of certain Fourier components. Using these gratings to provide distributed feedback in mid-infrared quantum cascade lasers, we demonstrate simultaneous lasing on multiple well-defined and isolated longitudinal modes, each one having a sidemode suppression ratio of about 20 dB.
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|a United States. Air Force Office of Scientific Research (MURI 67N-1069926)
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|a Harvard University (Nanoscale Systems and Engineering Center)
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|a United States. Air Force ('Deterministic Aperiodic Structures for Onchip Nanophotonic and Nanoplasmonic Device Applications' under award no. FA9550-10-1- 0019)
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|a National Science Foundation (U.S.) (NSF CAREER Award ECCS-0846651)
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|a Georgia Institute of Technology (Steve W. Chaddick Endowed Chair of OptoElectronics)
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|a en_US
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|a Article
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|t New Journal of Physics
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