Electro-optic fs pulsed laser deflection in KTN crystals using UV illumination

Annan Shang, Ruijia Liu, Yun Goo Lee, Mohammad Ahsanul Kabir, Yaoyang Ji, Shizhuo Yin

Research output: Contribution to journalArticlepeer-review


UV-illuminated, paraelectric-phased potassium tantalate niobate (KTN) single crystals mitigate the beam deformation effects of femtosecond pulsed lasers in KTN deflectors. UV light illumination can control the amount of trapped charge present and minimize domain inversion in KTN deflectors, owing to its generated electron-hole pairs. This enables high beam quality deflection of fs pulsed lasers, with access to larger deflection angles, deflection speeds, and modulation switching ratios. These results enable the use of KTN deflectors in many fs pulsed laser applications and hasten the advancement of fs applications that require these deflection qualities.

Original languageEnglish (US)
Pages (from-to)1040-1043
Number of pages4
JournalOptics Letters
Issue number4
StatePublished - Feb 15 2023

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this