Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Friso Schlottau"'
Publikováno v:
Optical and Quantum Electronics. 40:447-453
Rare-earth-doped crystals contain inhomogeneously broadened two-level atoms. Optical propagation and nonlinear interaction in the crystals can be described by the Maxwell–Bloch equations. We show a consistent numerical approach that solves Maxwell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f3cea39fa14045ed3aed5f669ce4731
https://doi.org/10.1007/s11082-008-9227-4
https://doi.org/10.1007/s11082-008-9227-4
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 14:952-962
We describe and demonstrate a Fourier-optical beamformer that modulates RF energy from an antenna array onto a corresponding array of coherent optical beams and forms RF-frequency-scaled (or beam-squinted), far-field images through a single-lens opti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c26fd1dd8270d974745ed6a68dd595ed
https://doi.org/10.1109/jstqe.2008.918657
https://doi.org/10.1109/jstqe.2008.918657
Autor:
R. Krishna Mohan, C. Dollinger, C. Ostrander, Friso Schlottau, Scott H. Bekker, Wm. Randall Babbitt, Kristian D. Merkel, Kelvin H. Wagner, Y. Sun, Ahmed Khallaayoun, Andy Olson, Rufus L. Cone, Mingzhen Tian, Randy R. Reibel, Z. Cole, Tiejun Chang
Publikováno v:
Journal of Luminescence. 127:116-128
This paper outlines the efforts to develop an ultra-wideband spectrum analyzer that takes advantage of the broad spectral response and fine spectral resolution (� 25 kHz) of spatial-spectral (S2) materials. The S2 material can process the full spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a83083f548b32298d023fa715b2185c
https://doi.org/10.1016/j.jlumin.2007.02.016
https://doi.org/10.1016/j.jlumin.2007.02.016
Publikováno v:
Journal of Luminescence. 127:135-145
We present a new approach to laser interferometric Doppler and ranging (LIDAR) processing using spatial–spectral holography (SSH). In this approach, broadband optical signals from a random noise or frequency-modulated laser are transmitted and refl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d949ca4e60ed586741c6a800a52ad3ff
https://doi.org/10.1016/j.jlumin.2007.02.048
https://doi.org/10.1016/j.jlumin.2007.02.048
Autor:
Kelvin H. Wagner, Friso Schlottau
Publikováno v:
Journal of Luminescence. 107:90-102
We present a new approach to time-integrating correlation using spatial–spectral holography in which an optically modulated temporal input is spatially scanned by diffracting it from an appropriately programed spatial–spectral grating. The gratin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adb8cba00dedb0e87f14c9fa71e01fee
https://doi.org/10.1016/j.jlumin.2003.12.039
https://doi.org/10.1016/j.jlumin.2003.12.039
Publikováno v:
2007 International Conference on Numerical Simulation of Optoelectronic Devices.
Rare-earth-doped crystals can be modelled as inhomogeneously broadened two-level atoms. Beam propagation in the crystals can be described by the Maxwell-Bloch equations. We numerically solve Maxwell's equations by using the FFT-finite difference beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cb9c21c14c4863caee11926a1bf2fc8
https://doi.org/10.1109/nusod.2007.4348996
https://doi.org/10.1109/nusod.2007.4348996
Publikováno v:
SPIE Proceedings.
The media tilt and position tolerances of a high Numerical aperture (NA) holographic data storage system are examined experimentally. The sources for these tolerances are explained and techniques for optimizing the drive tolerances are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc94949a3c0e4463540b6ecd4552bfef
https://doi.org/10.1117/12.738930
https://doi.org/10.1117/12.738930
Publikováno v:
Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006..
In this paper, we present an electro-optic radar receiver for wide bandwidth, high time-bandwidth-product radar returns that simultaneously performs parallel beamforming across arrays with thousands of antenna elements. This analog technique allows f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dab639acb84c9f5c7b6b19f92600aabc
https://doi.org/10.1109/sam.2006.1706204
https://doi.org/10.1109/sam.2006.1706204
Publikováno v:
Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006..
RF imaging is the mapping of signal intensity to the available azimuth and elevation angles of arrival. Although the result is analogous to optical images, which are formed using optical lenses, RF imagers typically use processor-intensive synthesis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::858fbde203d128de3d3efd8f8f5d59c1
https://doi.org/10.1109/sam.2006.1706201
https://doi.org/10.1109/sam.2006.1706201
Publikováno v:
SPIE Proceedings.
We propose performing ultrawideband RF spectrum analysis using spectral-hole-burning (SHB) crystals, which are crystal hosts lightly doped with rare earth ions such as Tm 3+ or Er 3+ . Cooling SHB crystals to cryogenic temperatures suppresses phonon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf20f945eaa8b279624dbd31919a49f9
https://doi.org/10.1117/12.628844
https://doi.org/10.1117/12.628844