周波数コム
John L Hall & Theodor W Hänsch (2004). “History of optical comb development”. In Jun Ye, Steven T. Cundiff. Femtosecond optical frequency comb. Springer. ISBN 0-387-23790-9. http://jila.colorado.edu/~junye/yelabs/pubs/scienceArticles/2005/sArticle_2005_YeCundiff_CombBook.pdf
Andrew M. Weiner (2009). Ultrafast Optics. Wiley. ISBN 978-0-471-41539-8. http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471415391.html