报告题目: |
The optical vortex coronagraph and the hunt for earth-like planets |
报告人: |
Prof. Grover A. Swartzlander |
|
Optical Sciences College, University of Arizona
Topical Editor, Optics Letters
|
报告时间: |
2006-07-04 09:30 |
报告地点: |
精仪系4楼会议室 |
主办单位: |
精仪系 |
简介: |
Current optical techniques do not allow astronomers to analyze the light from earth-like planets circling nearby stars. I will describe how an optical vortex lens may be used to completely null light from a star so that only the planet light is detected. If analysis of this light reveals oxygen absorption lines it will be the first evidence of life beyond Earth. |
