TY  - JOUR
A1  - Andrews, Nicholas L. P.
A1  - Ross, Rachel
A1  - Munzke, Dorit
A1  - van Hoorn, Camiel
A1  - Brzezinski, Andrew
A1  - Barnes, Jack A.
A1  - Reich, Oliver
A1  - Loock, Hans-Peter
T1  - In-fiber Mach-Zehnder interferometer for gas refractive index measurements based on a hollow-core photonic crystal fiber
JF  - Optics express : the international electronic journal of optics
N2  - We describe an in-fiber interferometer based on a gas-filled hollow-core photonic crystal fiber. Expressions for the sensitivity, figure of merit and refractive index resolution are derived, and values are experimentally measured and theoretically validated using mode field calculations. The refractive indices of nine monoatomic and molecular gases are measured with a resolution of delta(ns) < 10(-6). (C)2016 Optical Society of America
Y1  - 2016
U6  - https://doi.org/10.1364/OE.24.014086
SN  - 1094-4087
VL  - 24
SP  - 14086
EP  - 14099
PB  - Optical Society of America
CY  - Washington
ER  -