Abstract

We report an experimental method for high-precision refractive index measurement using a Michelson interferometer setup with a femtosecond optical frequency comb as the light source. We demonstrate this technique by measuring the refractive index of air, under different pressures, inside a 29m multipass cell. Both spectral and temporal interferograms are recorded. The method has a sensitivity of 6.2×109 and a standard error of 7.4×108 at fixed parameters (pressure and temperature). The possible variation of the density factor from the Lorentz–Lorenz equation is also discussed.

© 2005 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Precision refractive index measurements of air, N2, O2, Ar, and CO2 with a frequency comb

J. Zhang, Z. H. Lu, and L. J. Wang
Appl. Opt. 47(17) 3143-3151 (2008)

Precision measurement of the refractive index of carbon dioxide with a frequency comb

J. Zhang, Z. H. Lu, and L. J. Wang
Opt. Lett. 32(21) 3212-3214 (2007)

Absolute distance measurement by chirped pulse interferometry using a femtosecond pulse laser

Hanzhong Wu, Fumin Zhang, Tingyang Liu, Fei Meng, Jianshuang Li, and Xinghua Qu
Opt. Express 23(24) 31582-31593 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription