Submitted on: 02 January 2015.
Revised on: 28 January 2015.
Accepted on: 27 March 2015.
___________________Chinese Optics Letters---CHINESE LASER PRESS
Submitted on: 03 February 2021.
Revised on: 08 March 2021.
Accepted on: 21 April 2021.
___________________Chinese Optics Letters---CHINESE LASER PRESS
http://reply.papertrans.cn/1/54/5337/5337-33.png
Submitted on: 23 January 2002.
Revised on: 25 April 2002.
Accepted on: 22 June 2002.
___________________Chinese Optics Letters---CHINESE LASER PRESS
http://reply.papertrans.cn/1/54/5337/5337-35.png
Submitted on: 18 September 2008.
Revised on: 16 October 2008.
Accepted on: 09 November 2008.
___________________Chinese Optics Letters---CHINESE LASER PRESS