September 2009 Issue
Feature Articles
Choosing an Ethical Career in Optics
Many of today’s young professionals are looking to pursue careers that deeply resonate with their own values. Although there are few “right” answers when it comes to choosing your career path, you can start by asking the right questions.
by Patricia DaukantasOne of the challenges of adopting solar power as a widespread energy solution is the sheer amount of space that would be required to harness large amounts of the sun’s energy. Now, photovoltaic technology offers a means of gathering more sunlight into a smaller space.
by Blair UngerTwenty years ago, amateur scientist Forrest Mims revolutionized the field of sun photo-metry by devising an inexpensive filterless method of detecting sunlight that uses LEDs as spectrally selective photodiodes. He has been working ever since to develop improved instruments and collect measurements of atmospheric aerosols and water vapor.
by Forrest M. Mims IIIOptical Fiber Sensors Based on Brillouin Scattering
Optical physicists are carrying on the legacy of Leon Brillouin by developing and studying Brillouin-based optical fibers that can be used in telecommunications, nonlinear optics and the monitoring of civil structures such as bridges and dams.
by Xiaoyi BaoDepartments and Columns
Liquid deformable mirrors are a young but promising technology. They offer engineers a lower-cost alternative to their solid counterparts as well as the ability to generate extremely large deformations.
Genvac Aerospace: The Art of Reinvention
How one company transformed itself from a telecom bust into an aerospace boom.
Global Investments in Scientific R&D
For scientists around the world, one bright spot in the global economic meltdown is an increase in governments’ investment in research and development.
Cloud Imaging Benefits Earth-Space Communications
Researchers at Montana State University (Bozeman, Mont., U.S.A.) have discovered that a cloud-imaging system developed for climate research also shows promise for enhancing Earth-to-space optical communications.
OPN talks with Andrea Ghez, black hole hunter and FiO keynote speaker.
A look at the lives of some of OSA’s founding fathers.
Ultraviolet LEDs Enhance Lettuce Nutrients
Sientists have found that applying supplemental ultraviolet-B radiation to red-leaf lettuce increases the production of polyphenolic compounds and possibly the storage lifetime of the chemicals.
A new type of optical disc can store 1.6 terabytes of data.
Also in this Issue
Remembering Edward D. Palik, Steven K. Case and Robert E. Hopkins.

![Manual probe system with needles for test of semiconductor on silicon wafer. [A. Morozov / Getty]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1125/departments/202511-cover-web.jpg?ext=.jpg)
![Researcher Clara Saraceno in the lab. [Image by Carsten Behler Photography]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1025/departments/202510-cover-web.jpg?ext=.jpg)