Dr. Anthony J. Campillo

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  josabdev.osa.org/aboutosa/contactosa/default.aspx - [Cached Version]
  Published on: 3/3/2007    Last Visited: 3/3/2007  

  Anthony J. CampilloSr Director of Science Policy 202.416.1967acampi@osa.org

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  www.osa-opn.org/Blog/post/2008/04/Blinding-Insights-int - [Cached Version]
  Published on: 1/1/2008    Last Visited: 4/25/2008  

  Anthony Campillo, OSA's current director of science policy, agrees with Linke's assessment."Laser pointers will generally NOT cause permanent eye damage, unless one looks directly into a 20 mW green pointer at arm's length," he says.Rather, the main threat is caused by a "dazzle" effect, which causes temporary blinding similar to that from a lightbulb flash, or else panic resulting from the incorrect perception that the exposure is dangerous."It's not the laser pointer itself that is a danger but its misuse," says Campillo.
  
  OSA Fellow Emeritus Tony Siegman says that handheld lasers have even been marketed for search-and-rescue situations.Disabled hikers or lost sailors could use them to signal a plane for help.Siegman himself carries a green laser pointer in an emergency kit in his backpack when he goes on backcountry ski excursions around Lake Tahoe.

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  www.osa-opn.org/Blog/post/2008/03/Image-of-the-near-sid - [Cached Version]
  Published on: 1/1/2008    Last Visited: 4/25/2008  

  So I asked Tony Campillo, OSA's senior director of science policy, to work out some back-of-the-envelope calculations.Tony has more than 40 years of experience in optics and photonics, as both an optical scientist with the Naval Research Labs and other institutions and as the former editor of the journal Optics Letters.His verdict: Making a light spot on the moon that people could see without assistance would likely require continuous laser power beyond anything we have on Earth right now.
  
  Let's imagine a single beam of green laser light originating on Earth's surface and aimed at the moon. (The human eye is most sensitive to light of about 555 nm in wavelength, and green just happens to be the favorite color of the beer company that started this whole thing.) Assume that the outgoing beam is 3.5 m wide, as in the Apache Point Observatory laser-ranging program.After atmospheric distortion, the beam width would be 2 km at the moon, and about 90 percent of the light would reach the lunar surface.
  
  But wait!The moon reflects only about 10 percent of the light that hits its surface.And even that, according to Tony, is scattered into a Lambertian pattern that covers an area that is 100 times the size of the Earth by the time it returns.
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  Tony also guessed that an input of at least 1 fW from a continuous-wave (cw) laser would be needed to trigger sight in the human eye.Extrapolating to the originating laser, he guesstimated that a 100-GW cw laser would be needed to produce a visible spot on the moon.
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  With the assumption that the pupil of the dark-adapted eye is 7 mm in diameter, Tony calculated that the eye will receive 200 photons/s from a 6th -magnitude star and 20,000 photons/s from a 1st -magnitude star.According to Tony, 1 W of green light corresponds to 2 × 1018 photons/s.By this line of reasoning, 0.01 fW of light from a 1st -magnitude star hits the retina, and thus only a 1-GW cw laser would be required to make a visible dot on the moon.
  
  In this case, Tony adds, his estimate assumes that the laser is painting a single 1st -magnitude pixel on the darkened portion of a first-quarter or last-quarter moon.
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  Many of the assumptions that Tony and I have made need to be refined, especially the size of the Lambertian scattered beam returned to the Earth.

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  www.osa-opn.org/Blog/category/syndication.axd?category= - [Cached Version]
  Published on: 7/28/2008    Last Visited: 7/28/2008  

  Tony has more than 40 years of experience in optics and photonics, as both an optical scientist with the Naval Research Labs and other institutions and as the former editor of the journal Optics Letters.His verdict: Making a light spot on the moon that people could see without assistance would likely require continuous laser power beyond anything we have on Earth right now. Let’s imagine a single beam of green laser light originating on Earth’s surface and aimed at the moon. (The human eye is most sensitive to light of about 555 nm in wavelength, and green just happens to be the favorite color of the beer company that started this whole thing.) Assume that the outgoing beam is 3.5 m wide, as in the Apache Point Observatory laser-ranging program.After atmospheric distortion, the beam width would be 2 km at the moon, and about 90 percent of the light would reach the lunar surface. But wait!The moon reflects only about 10 percent of the light that hits its surface.And even that, according to Tony, is scattered into a Lambertian pattern that covers an area that is 100 times the size of the Earth by the time it returns. We know that the light-gathering part of the human eye—the dark-adapted pupil—is 1 cm wide at best, and let’s make a rough assumption that the diameter of the scattered beam is 1 million km wide when it hits the Earth.
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  However, maybe unit accounting was different in 1919.)  Tony also guessed that an input of at least 1 fW from a continuous-wave (cw) laser would be needed to trigger sight in the human eye.Extrapolating to the originating laser, he guesstimated that a 100-GW cw laser would be needed to produce a visible spot on the moon.  Another way of thinking about the sensitivity of human vision involves the astronomers’ system of apparent magnitudes for measuring the brightness of objects in the night sky.

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  www.osa-opn.org/Blog/category/syndication.axd?category= - [Cached Version]
  Published on: 4/25/2008    Last Visited: 4/25/2008  

  Tony has more than 40 years of experience in optics and photonics, as both an optical scientist with the Naval Research Labs and other institutions and as the former editor of the journal Optics Letters.His verdict: Making a light spot on the moon that people could see without assistance would likely require continuous laser power beyond anything we have on Earth right now. Let’s imagine a single beam of green laser light originating on Earth’s surface and aimed at the moon. (The human eye is most sensitive to light of about 555 nm in wavelength, and green just happens to be the favorite color of the beer company that started this whole thing.) Assume that the outgoing beam is 3.5 m wide, as in the Apache Point Observatory laser-ranging program.After atmospheric distortion, the beam width would be 2 km at the moon, and about 90 percent of the light would reach the lunar surface. But wait!The moon reflects only about 10 percent of the light that hits its surface.And even that, according to Tony, is scattered into a Lambertian pattern that covers an area that is 100 times the size of the Earth by the time it returns. We know that the light-gathering part of the human eye—the dark-adapted pupil—is 1 cm wide at best, and let’s make a rough assumption that the diameter of the scattered beam is 1 million km wide when it hits the Earth.
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  However, maybe unit accounting was different in 1919.)   Tony also guessed that an input of at least 1 fW from a continuous-wave (cw) laser would be needed to trigger sight in the human eye.Extrapolating to the originating laser, he guesstimated that a 100-GW cw laser would be needed to produce a visible spot on the moon.   Another way of thinking about the sensitivity of human vision involves the astronomers’ system of apparent magnitudes for measuring the brightness of objects in the night sky.   The apparent-magnitude scale is a logarithmic scale dating back to ancient days.The faintest stars that the human eye can see have a magnitude of 6, while stars with a magnitude of 1 are 100 times brighter than their 6th-magnitude cousins.Nowadays, you might still be able to see 6th-magnitude stars from a high desert on a clear night.However, from the typical suburb of a brightly lit American city, you would probably see only 3rd-magnitude and brighter stars.   Suppose that the brightness of the one-pixel lunar display is 1st magnitude.With the assumption that the pupil of the dark-adapted eye is 7 mm in diameter, Tony calculated that the eye will receive 200 photons/s from a 6th-magnitude star and 20,000 photons/s from a 1st-magnitude star.According to Tony, 1 W of green light corresponds to 2 × 1018 photons/s.

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  ol.osa.org/Issue.cfm - [Cached Version]
  Published on: 4/1/2006    Last Visited: 3/3/2007  

  Editor: Anthony J. Campillo , Vol.32, Iss. 6 -- March 15, 2007

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  Contact OSA - [Cached Version]
  Published on: 9/21/2008    Last Visited: 9/21/2008  

  Anthony J. CampilloSr. Director of Science Policy 202.416.1967acampi@osa.org

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  Leadership > Governing Bodies > Standing and Ad Hoc... - [Cached Version]
  Published on: 8/7/2007    Last Visited: 8/7/2007  

  Anthony J. Campillo, Optical Society of America, USA

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  OSA Press Room - [Cached Version]
  Published on: 10/7/2008    Last Visited: 9/21/2008  

  Anthony J. Campillo to Join Optical Society of America as Senior Director of Science Policy in 2007

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  OSA Press Room Release - [Cached Version]
  Published on: 1/1/2007    Last Visited: 9/21/2008  

  Anthony J. Campillo to Join Optical Society of America as Senior Director of Science Policy in 2007
  
  campilloWASHINGTON, Sept. 29 , As of Jan. 4, 2007, Anthony J. Campillo, Ph.D., will join OSA as its senior director of science policy.In this capacity, he will provide strategic direction on the Society's scientific programming, leveraging his technical expertise to help expand OSA programs and activities.
  
  Campillo is an active volunteer and fellow of OSA, currently serving as editor-in-chief of Optics Letters, OSA's most cited journal.His vast experience in optics and photonics, along with his long-term involvement with OSA and its community, makes him a good fit for the position.
  
  "Tony has been a dedicated volunteer and valued member of OSA for many years," says Elizabeth A. Rogan, OSA executive director.
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  "The OSA staff are thrilled to learn Tony will be working with us in this capacity."
  
  Campillo has more than 40 years of experience in optics and photonics and has been a member of OSA since 1966.He received his Ph.D. in electrical engineering from Cornell University in 1973.Throughout his esteemed career, Campillo has conducted research on laser development at General Telephone & Electronic Laboratories, ultrafast spectroscopy and nonlinear optics for Los Alamos Scientific Laboratory and environmental chemistry and aerosol optics at Brookhaven National Laboratory.A widely published author, most recently, his research centered on laser chemical/biological analysis, microcavity effects, photonics and nanotechnology at the U.S. Naval Research Laboratory as the head of the Optical Physics Branch.Additionally, Campillo is a fellow of the American Physical Society and has been an adjunct professor of chemistry at The Catholic University of America in Washington, D.C.

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