High-brightness soft X-ray generation under optimized laser-cluster interaction

Jiunn Yuan Lin, Hsu Hsin Chu, Ming Yi Shen, Yee Fang Xiao, Chau Hwang Lee, Szu Yuan Chen, Jyhpyng Wang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


High-brightness soft X-ray emissions are obtained by optimizing the interaction between high-intensity ultrashort optical pulses and Ar clusters. With only 100-mJ pump energy, the yield at 13.8 nm with 0.1-nm bandwidth reaches 0.3 mJ/pulse, while the yield in the spectral range of 11-20 nm reaches 12 mJ/pulse in 4π solid angle. The relation between optimal pulse durations and cluster sizes are found to conform with the nano-plasma expansion model, while the optimal pump beam size is related to the pulse contrast by the condition that prepulse ionization is sufficiently weak to preserve the local plasma density.

Original languageEnglish
Pages (from-to)375-381
Number of pages7
JournalOptics Communications
Issue number1-6
StatePublished - 15 Feb 2004


  • Cluster
  • Laser-produced plasma
  • Soft X-ray


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