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THE COVER

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NEWS & ANAlYSIS

COlUMNS

THE COVER

le

20

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TECH NEWS

. Single na no mate rial yields a laser rainbow

. Cou pied lasers cancel each other out

. Soler cell-like implant stimulates optic nerve

34

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FASnRACK.

. Software gives photonics designers more power

. LME2012 expands educational offerings

41

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GREENLIGHT

LED-like soler cell absorbs, emits light

10

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EDITORIAL

12

1 LETTERS

82

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PEREGRINATIONS

Uncooled IR camera reveals mysteries of space

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BRIGHT IDEAS 79

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HAPPENINGS 81

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ADVERTISER INDEX

of Vytran LLCdiscuss optical fiber probes for medical imaging applications, begin- ning on p. 42. A schematic of the filament fusion process is illustrated. Design by Senior Art Director Lisa N. Comstock.

PHOTONI energy wl from ener

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PHOTONIC!

PUBLISHEDN Common, PC 0514;lox: +1 cam.TlTLECE by Lourin Pub tonics Spectre crolilm, 300 ~ Spectro articlo MASTER:Sen, mon, PO Box poidalPittsfie LATION PO charge la que ogemenl per.

your business ers as lollows

lied subscripti engineers, ed are invited ta electro-opliec Communieoti Spectra shou tributed stalel tra are those responsibility

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PHOTONICS:

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PHOTONICS SPECTRA ISSN-0731-1230, (USPS448870) IS PUBLISHEDMONTHLy BYLaurin Publishing Co. Inc., Berkshire Common, PO Box4949,Piltsfield,MA 01202,

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1 (413) 499- 0514;fox: + 1 (413)442-3180;e-moil: photonics@photonics.

corn. TITLEreg. in US Libraryof Congress. Copyright @2012 by LaurinPublishing Co. Inc.AIlrights reselVed. Copies of Pho- tonics Spectra on microfilm ore ovailoble from University Mi- crofilm,300 North Zeeb Rood, Ann Arbor,MI 48103.Photonics Spectra orticles ore indexed in the Engineering Index. POST- MASTER:Send form 3579 to Photonics Spectra, Berkshire Com- mon, PO Box4949, Pi1tsfield,MA 01202.Periodicols postage paid at Piltsfield,MA,ond ot additional mailing offices. CIRCU- lATION POLlCY: Photonics Spectra is distributed without charge to qualified scientists, engineers, technicions, ond man- agement personnel. Eligibilityrequests must be returned with your business cord or orgonizotion's lelterhead. Rotes for oth- ers os follows:$122 per year, prepoid. Overseos postoge: $28 .""""cm , .,no ',,""'-aA-'-o o--h-"..J,. L scriptionrates. Publisher reselVes the right to refuse nonquoli- fied subscriptions.ARTICLESFOR PUBLICATION: Scientists, engineers, educators, technicol executives ond technicol writers ore invitedto contribute orticles on the optical, loser, fiber optic, electro-optical, imaging, optoelectronics and related fields.

Communications regarding the editorial content of Photonics Spectra should be addressed to the monaging editor. Con- tributedstatements ond opinions expressed in Photonics Spec- tra are those of the contributors - the publisher ossumes no responsibilityfor them.

Volume 461 Issue 7 www.photonics.com ,...

-,

.~~. Ay,:1IBI;~..PR.QB,ES HOLD PROMISE FOR MEDICAL IMAGING APPLICATIONS by Jean-Michel Pe/aprat and Dr. Baishi Wang, Vytran LLC

Designs made possible by filament fusion technology have found applications in medical imaging su ch as 1- and 2-D optical coherence tomography.

46

1 NANOSCALE BIOMATERIALS REQUIRE CLOSE OBSERVATION by Lynn Savage, Features Editar

Deep-imaging microscopy could advance

the use of polyurethane-based "nanohybrids"

in replacement bones and blood vessels.

52

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DPSS LASERSGIVEMEDICALDEVICEMANUFACTURINGAN EDGE

by Jim Bavatsek, Jürgen Niederhafer and Dr. Rajesh S. Patel, Spectra-Physics As medical devices continue to shrink, these solid-state lasers offer a versatile alternative to CO2 and excimer.

SS

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BEAM PROFILING HELPS MAKE MEDICAL DEVICES BEnER by Jahn McCauley, Ophir-Spiricon

The range of information provided by laser measurement products ensures the consistency and precision of the machine or process.

58

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ELECTRONICSAUGMENTS MODERN PROCESS CONTROL SPECTROSCOPY

by Gert Nol/, Tec5USA Inc., and Mathias Ho/zapfel, Tec5 AG

ln process control,

the detector array and readout electronics are key; ideally, these are combined with a large signal-to-noise ratio and high dynamic range.

62

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ASPHERES DEAL WITH BIGGER DEVIATIONS

by Hank Hagan, Cantributing Editar

As aspheres

with deviations up to 800 fJm have become common and manufacturing runs have become smaller, metrology tools and techniques have evolved to keep up.

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