Department of Electrical & Computer Engineering    

Laboratory for Engineering Non-traditional Sensors (LENS)

Welcome! You've probably arrived here looking for information regarding the recent article in Nature, "Multiscale Gigapixel Photography".

Our group, the Laboratory for Engineering Non-traditional Sensors (LENS), was responsible for developing the approach (and related software) for combining the individual microcamera images into a final representation of the scene. Our fundamental goal was to develop an approach that could scale to eventually accommodate the prodigious data rates that the new camera architecture makes possible.

For more details, check out our overview of image formation in AWARE

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Publications

Refereed Journal Papers

D.V. Dinakarababu, D.R. Golish, and M.E. Gehm, “Adaptive feature specific spectroscopy for rapid chemical identification,” Opt. Express 19, 4595-4610, (2011). [PDF]

Z. Wu, W.-R. Ng, M.E. Gehm, and H. Xin, “Terahertz electromagnetic crystal waveguide fabricated by polymer jetting rapid prototyping,” Opt. Express 19, 3962-3972, (2011). [PDF]

M. Lee, Y. Zhu, D.J. Gauthier, M.E. Gehm, and M.A. Neifeld, “Information-theoretic analysis of a stimulated-Brillouin-scattering-based slow-light system,” Appl. Opt. 50, 6063-6072, (2011). [PDF]

M. Lee, M.E. Gehm, and M.A. Neifeld, “Systematic design study of all- optical delay line based on Brillouin enhanced cascade coupled ring resonators,” Journal of Optics, 12, 104012 (2010). [PDF]

Z. Wu, A. Young, M.E. Gehm, and H. Xin, “Investigation of several terahertz electromagnetic band gap structures,” Microw. Opt. Technol. Lett. 52 678-686 (2010). [PDF]

J. Kinast and M.E. Gehm, “Adaptive dynamic range matching for spectroscopic measurements,” Appl. Opt. 48 1891-1897 (2009). [PDF]

Z. Wu, J. Kinast, M.E. Gehm, and H. Xin, “Rapid and inexpensive fabrication of Terahertz electromagnetic bandgap structures,” Opt. Express 16 16442-16451 (2008). [PDF]

M.E. Gehm, M.S. Kim, C. Fernandez, and D.J. Brady, “High-throughput, multiplexed pushbroom hyperspectral microscopy,” Opt. Express 16 11032-11043 (2008). [PDF]

M.E. Gehm, R. John, D.J. Brady, R.M. Willett, and T.J. Schulz, “Single-shot compressive spectral imaging with a dual-disperser architecture,” Opt. Express 15 14013-14027 (2007). [PDF]

A. Wagadarikar, M.E. Gehm, and D.J. Brady, “Performance comparison of aperture codes for multimodal, multiplex spectroscopy,” Appl. Opt. 46 4932-4942 (2007). [PDF]

C. Fernandez, B.D. Guenther, M.E. Gehm, D.J. Brady, and M.E. Sullivan, “Longwave infrared (LWIR) coded aperture dispersive spectrometer,” Opt. Express 15 5742-5753, (2007). [PDF]

S.D. Feller, H. Chen, D.J. Brady, M.E. Gehm, C. Hsieh, O. Momtahan, and A. Adibi, “Multiple-order, coded-aperture spectrometer,” Opt. Express 15 5625-5630, (2007). [PDF]

E.C. Cull, M.E. Gehm, D.J. Brady, C.R. Hsieh, O. Momtahan, and A. Adibi, “Dispersion multiplexing with broadband filtering for inexpensive, high performance miniature spectrometers,” Appl. Opt. 46 365-374 (2007). [PDF]

S.T. McCain, M.E. Gehm, Y.Wang, N.P. Pitsianis, and D.J. Brady, “Coded-aperture Raman spectroscopy for quantitative measurements of ethanol in a tissue phantom,” Appl. Spec. 60 663-671 (2006). [PDF]

M.E. Gehm, S.T. McCain, N.P. Pitsianis, D.J. Brady, P. Potuluri, and M.E. Sullivan, “Static 2D aperture coding for multimodal multiplex spectroscopy,” Appl. Opt. 45 2965-2974 (2006). [PDF]

P. Potuluri, M.E. Gehm, M.E. Sullivan, and D.J. Brady, “Measurement-efficient optical wavemeters,” Opt. Express 12 6219-6229 (2004). [PDF]

J. Kinast, S.L. Hemmer, M.E. Gehm, A. Turlapov, and J.E. Thomas, “Evidence for superfluidity in a resonantly interacting Fermi gas,” Phys. Rev. Lett. 92 150402 (2004). [PDF]

Highlighted in the international science press:
  • Named one of the top physics stories of 2004 by the American Institute of Physics [link].
  • Highlighted in Physics News Update [link].

J. E. Thomas, S. L. Hemmer, J. Kinast, A. Turlapov, M. E. Gehm, and K. M. O'Hara, “Dynamics of a highly-degenerate, strongly-interacting Fermi gas of atoms,” J. Low Temp. Phys. 134 (2003). [PDF]

M.E. Gehm, S.L. Hemmer, K.M. O'Hara, and J.E. Thomas, “Unitarity-limited elastic collision rate in a harmonically-trapped Fermi gas”, Phys. Rev. A 68 011603(R) (2003). [PDF]

M.E. Gehm, S.L. Hemmer, S.R. Granade, K.M. O'Hara, and J.E. Thomas, “Mechanical stability of a strongly-interacting degenerate Fermi gas of atoms,” Phys. Rev. A 68 011401(R) (2003). [PDF]

K.M. O'Hara, S.L. Hemmer, M.E. Gehm, S.R. Granade, and J.E. Thomas, “Observation of a strongly interacting degenerate Fermi gas of atoms,” Science, 13 December, 298 2179 (2002). [PDF]

Highlighted in the international science press. Selected articles include:
  • Scientific American, October 2003 [link].
  • Science 298 [link].

K.M. O'Hara, S.L. Hemmer, S.R. Granade, M.E. Gehm, J.E. Thomas, V. Venturi, E. Tiesinga, and C.J. Williams, “Measurement of the zero crossing in a Feshbach resonance of fermionic Li,” Phys. Rev. A 66 041401(R) (2002). [PDF]

S.R. Granade, M.E. Gehm, K.M. O'Hara, and J.E. Thomas, “All-optical production of a degenerate Fermi gas,” Phys. Rev. Lett. 88 120405 (2002). [PDF]

Highlighted in the international science press. Selected articles include:
  • Physics Today, May 2002 [link].

K.M. O'Hara, M.E. Gehm, S.R. Granade, and J.E. Thomas, “Scaling laws for evaporative cooling in time-dependent optical traps,” Phys. Rev. A 64 051403(R)(2001). [PDF]

K.M. O'Hara, S.R. Granade, M.E. Gehm, and J.E. Thomas, “Loading dynamics of CO2 laser traps,” Phys. Rev. A 63 043403 (2001). [PDF]

K.M. O'Hara, M.E. Gehm, S.R. Granade, S. Bali, and J.E. Thomas, “Stable, strongly attractive, two-state mixture of lithium fermions in an optical trap,” Phys. Rev. Lett. 85 2092 (2000). [PDF]

Highlighted in the international science press. Selected articles include:
  • Scientific American, November 1999 [link].

T.A. Savard, S.R. Granade, K.M. O'Hara, M.E. Gehm, and J.E. Thomas, “Raman-induced magnetic resonance imaging of atoms in a magneto-optical trap,” Phys. Rev. A 60 4788 (1999). [PDF]

S. Bali, K.M. O'Hara, M.E. Gehm, S.R. Granade, and J.E. Thomas, “Quantum-diffractive background gas collisions in atom trap heating and loss,” Phys. Rev. A 60 R29 (1999). [PDF]

K.M. O'Hara, S.R. Granade, M.E. Gehm, T.A. Savard, S. Bali, C. Freed, and J.E. Thomas, “Ultrastable CO2 laser trapping of lithium fermions,” Phys. Rev. Lett. 82 4204 (1999). [PDF]

M.E. Gehm, K.M. O'Hara, T.A. Savard, and J.E. Thomas, “Dynamics of noise-induced heating in atom traps,” Phys. Rev. A 58 3914 (1998). [PDF][Errata PDF]

General Audience Publications

J.E. Thomas and M.E. Gehm, “Optically trapped Fermi gases”, American Scientist, pp. 238-245, May-June 2004. [PDF]

Books and Monographs

M.E. Gehm, Preparation of an Optically-Trapped Degenerate Fermi Gas of 6Li: Finding the Route to Degeneracy, Ph.D. dissertation, Duke University (2003). [PDF]

Selected Conference Papers

D. Townsend, S. Wehrwein, E.M. Vera, M.D. Stenner, and M.E. Gehm, “A static architecture for compressive target tracking,” Proc. SPIE 8360, (Proceedings of 2012 SPIE Defense Security and Sensing Symposium) to appear.

P.A. Jansen, M.J. Dunlop, D.R. Golish, and M.E. Gehm, “Adaptive, feature-specific spectral imaging,” Proc. SPIE 8365, (Proceedings of 2012 SPIE Defense Security and Sensing Symposium) to appear.

M.E. Gehm, D.R. Golish, E.M. Vera, J. Hahn, D.L. Marks and D.J. Brady, “Image formation challenges in the MOSAIC platform,” Proc. SPIE 8056, (Proceedings of 2011 SPIE Defense Security and Sensing Symposium). [PDF]

Z. Wu, W.-R. Ng, M.E. Gehm and H. Xin, “Electromagnetic crystal (EMXT)-based THz components,” Proc. SPIE 7938, (Proceedings of SPIE 2011 Photonics West). [PDF]

M.E. Gehm and M.D. Stenner, “Compressive measurement for target tracking in persistent, pervasive surveillance applications,” Proc. SPIE 7468 (Proceedings of 2009 SPIE Optics and Photonics). [PDF]

M.E. Gehm, Z. Wu, and H. Xin, “Rapid prototyping for fabrication of GHz-THz bandgap structures,” Proc. SPIE 7311 (Proceedings of 2009 SPIE Defense, Security, and Sensing Symposium). [PDF]

D.V. Dinakarababu and M.E. Gehm, “Adaptive spectroscopy for rapid chemical identification,” Proc. SPIE 7319 (Proceedings of 2009 SPIE Defense, Security, and Sensing Symposium). [PDF]

M.E. Gehm and J. Kinast, “Adaptive spectroscopy: Towards adaptive spectral imaging,” Proc. SPIE 6978 (Proceedings of 2008 SPIE Defense and Security Symposium). [PDF]

R.M. Willett, M.E. Gehm, and D.J. Brady, “Multiscale reconstruction for computational spectral imaging,” Proc. SPIE 6498 (Proceedings of 2007 SPIE Electronic Imaging Conference). [PDF]

D.J. Brady, M.E. Gehm, N.P. Pitsianis, and X. Sun, “Compressive sampling strategies for integrated microspectrometers,” Proc. SPIE 6232 (Proceedings of 2006 SPIE Defense and Security Symposium). [PDF]

D.J. Brady and M.E. Gehm, “Compressive imaging spectrometers using coded apertures,” Proc. SPIE 6246 (Proceedings of 2006 SPIE Defense and Security Symposium). [PDF]

M.E. Gehm and D.J. Brady, “High-throughput Hyperspectral Microscopy,” Proc. SPIE 6090 (Proceedings of 2006 Photonics West---BIOS). [PDF]

S.T. McCain, M.E. Gehm, Y. Wang, N.P. Pitsianis, and D.J. Brady, “Multimodal multiplex Raman spectroscopy optimized for in vivo chemometrics”, Proc. SPIE 6093 (Proceedings of 2006 Photonics West---BIOS). [PDF]

E.C. Cull, M.E. Gehm, B.D. Guenther, and D.J. Brady, “Standoff Raman spectroscopy system for remote chemical detection,” Proc. SPIE 5994 (Proceedings of 2005 Photonics East). [PDF]

S.T. McCain, M.E. Gehm, Y. Wang, N.P. Pitsianis, M.E. Sullivan, and D.J.Brady, “Multimodal, multiplex, Raman spectroscopy of alcohol in diffuse, fluorescent media,” Proc. SPIE 5864 (Proceedings of 2005 European Conference on Biomedical Optics). [PDF]

E.C. Cull, M.E. Gehm, S.T. McCain, B.D. Guenther, and D.J. Brady, “Multimodal optical spectrometers for remote chemical detection,” Proc. SPIE 5778 (Proceedings of the 2005 SPIE Defense and Security Symposium). [PDF]

K. M. O'Hara, M. E. Gehm, S. R. Granade, M.-S. Chang, and J. E. Thomas, “Coherence in an optically trapped Fermi gas,” Coherence and Quantum Optics VIII p587 (Kluwer Academic/Plenum Publishers, New York, 2003).

J. E. Thomas, S. L. Hemmer, J. M. Kinast, A. V. Turlapov, M. E. Gehm and K. M. O'Hara, “Dynamics of a highly-degenerate, strongly interacting Fermi gas,” Proceedings of the 16th International Conference on Laser Spectroscopy.

J. E. Thomas, S. R. Granade, M. E. Gehm, M.-S. Chang, and K. M. O'Hara, “Optical trapping of a two-component Fermi gas," in Proceedings of the XV International Conference on Laser Spectroscopy (World Scientific, New Jersey, 2002).

S. R. Granade, M. E. Gehm, K. M. O'Hara, and J. E. Thomas, “Preparation of a degenerate, two-component Fermi gas by evaporation in a single beam optical trap," OSA Trends in Optics and Photonics (TOPS) 74, (Proceedings of 2002 Quantum Electronics and Laser Science Conference).

M. E. Gehm, S. R. Granade, M.-S. Chang, K. M. O'Hara, and J. E. Thomas, “Optically trapped Fermi gas," OSA Trends in Optics and Photonics (TOPS) 57, (Proceedings of 2001 Quantum Electronics and Laser Science Conference).

K. M. O'Hara, S. R. Granade, M. E. Gehm, M.-S. Chang, and J. E. Thomas, “Modeling the evaporative cooling of fermionic atoms in an optical trap," OSA Trends in Optics and Photonics (TOPS) 57, (Proceedings of 2001 Quantum Electronics and Laser Science Conference).

© 2008. Department of Electrical and Computer Engineering, The University of Arizona, 1230 E. Speedway Blvd., Tucson, AZ 85721