Seok-Hyun Yun,Brett Eugene Bouma,Guillermo J. Tearney,Johannes Fitzgerald De Boer
申请号：
US15140125
公开号：
US09812846B2
申请日:
2016.04.27
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Exemplary apparatus and method are provided. In particular, an electromagnetic radiation can be emitted with, e.g. a light source arrangement. For example, the light source arrangement can include a cavity and a filter, and a spectrum of the electromagnetic radiation can be controlled, e.g., with such cavity and filter, to have a mean frequency that changes (i) at an absolute rate that is greater than about 100 terahertz per millisecond, and (ii) over a range that is greater than about 10 terahertz. Additionally or alternatively, the light source arrangement can include a frequency shifting device which can shift the mean frequency of the electromagnetic radiation.
