Material Limitations on the Detection Limit in Refractometry

We discuss the detection limit for refractometric sensors relying on high-Q optical cavities and show that the ultimate classical detection limit is given by min {Δn} ≳ η with n + iη being the complex refractive index of the material under refractometric investigation. Taking finite Q factors and fi...

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Bibliographic Details
Main Authors: Niels Asger Mortensen, Sanshui Xiao, Peder Skafte-Pedersen, Pedro S. Nunes
Format: Article
Language:English
Published: MDPI AG 2009-10-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/9/11/8382/