Abstract

A number of applications require x rays of both high flux and narrow bandwidth. In this work, we experimentally demonstrate the high-efficiency generation of narrowband soft x rays from carbon nanotube foams irradiated by a femtosecond laser pulse at an intensity of ${10^{19}}\;{{\rm W/cm}^2}$. The building blocks of the foam, single-walled carbon nanotube bundles with diameters smaller than the laser skin length can be volumetrically heated and fully ionized on a femtosecond time scale. The three-dimensional network structure of the foam permits deep penetration and drastic absorption of the laser pulse, and results in bright line emissions without prominent Stark broadening. A single-shot yield of $3 \times {10^{14}}\;{\rm photons}$ in the carbon ${{\rm Ly}_\alpha}$ line at 3.37 nm was measured with a bandwidth of 0.013 nm.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
High-efficiency water-window x-ray generation from nanowire array targets irradiated with femtosecond laser pulses

Yinren Shou, Defeng Kong, Pengjie Wang, Zhusong Mei, Zhengxuan Cao, Zhuo Pan, Yunhui Li, Shirui Xu, Guijun Qi, Shiyou Chen, Jiarui Zhao, Yanying Zhao, Changbo Fu, Wen Luo, Guoqiang Zhang, Xueqing Yan, and Wenjun Ma
Opt. Express 29(4) 5427-5436 (2021)

Compact high-flux hard X-ray source driven by femtosecond mid-infrared pulses at a 1 kHz repetition rate

Azıze Koç, Chrıstoph Hauf, Mıchael Woerner, Lorenz von grafensteın, Dennıs Ueberschaer, Martin Bock, Uwe Griebner, and Thomas Elsaesser
Opt. Lett. 46(2) 210-213 (2021)

Emission of water-window soft x-rays under optically thin conditions using low-density foam targets

Hiroyuki Hara, Hiromu Kawasaki, Toshiki Tamura, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Hayato Ohashi, Shinichi Namba, Atsushi Sunahara, Akira Sasaki, Masaharu Nishikino, Gerry O’Sullivan, and Takeshi Higashiguchi
Opt. Lett. 43(15) 3750-3753 (2018)

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 Optica member, or as an authorized user of your institution.

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

Supplementary Material (1)

NameDescription
Supplement 1       Supplement 1

Data Availability

The data supporting this study are available from the corresponding author upon reasonable request.

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 Optica member, or as an authorized user of your institution.

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

Figures (3)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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