| Time：115/9/30 (Wed.) 14:20~16:20 Speaker：Prof.林碧軒(Bi-Hsuan Lin ) 國家同步輻射研究中心實驗設施組X光影像小組/X-ray Imaging Group, Experimental Facility Division, National Synchrotron Radiation Research Center Title：Combination of XEOL, TR-XEOL, and HB-T interferometer in the TPS 23A X-ray nanoprobe for exploring quantum materials Abstract： The multifunctional hard X-ray nanoprobe at the Taiwan Photon Source (TPS) 23A demonstrates exceptional capabilities in simultaneously characterizing X-ray absorption spectroscopy (XAS), X-ray fluorescence (XRF), X-ray excited optical luminescence (XEOL), time-resolved XEOL (TR-XEOL), and Hanbury-Brown and Twiss (HB-T) interferometry[1]. The elemental distributions and valence states of rare-earth ions can be effectively measured using XRF and XAS, respectively. XEOL and TR-XEOL serve as excellent tools for investigating the emission properties and dynamic luminescence of luminescent materials. Notably, we have successfully synchronized the HB-T interferometer with the single-bunch operation of the TPS 23A beamline, enabling us to study the bunching and anti-bunching behaviors of emission light excited by X-ray, which is crucial for single-photon sources in quantum technology. Our recent work[2-3] has shown that the X-ray nanoprobe not only provides high spatial resolution but also delivers high peak power density, allowing for the creation of color centers and zero-phonon lines in samples through X-ray irradiation. Further details regarding the capabilities of this beamline will be reported. References [1]Tzu-Chi Huang, Shang-Wei Ke, Yu-Hao Wu, En-Rui Wang, Wei-Lon Wei, Chien-Yu Lee, Bo-Yi Chen, Gung-Chian Yin, Han-Wei Chang, Mau-Tsu Tang and Bi-Hsuan Lin*, “Combination of XEOL, TR-XEOL, and HB-T interferometer at the TPS 23A X-ray nanoprobe for exploring quantum materials”, Journal of Synchrotron Radiation 31, 252 (2024) [2] Sunny Saurabh, Umeshwar Reddy Nallasani, Tzu-Chi Huang, Chun-Yen Lin, Yi-Chen Li, Yu-Hao Wu, Chien-Yu Lee, Bo-Yi Chen, Gung-Chian Yin, Mau-Tsu Tang, Wu-Ching Chou*, Bi-Hsuan Lin* “Probing the peculiar emission behaviors of c-Sapphire wafer and β-Ga2O3/c-Sapphire via hard X-ray nanoprobe.” Optical Materials, 163, 116975 (2025). [3] Tzu-Chi Huang, Wei-Lun Wei, Sunny Saurabh, Yu-Hao Wu, Chen-Wei Lin, Yi-Chen Li, Chien-Yu Lee, Bo-Yi Chen, Gung-Chian Yin, Mau-Tsu Tang, Wu-Ching Chou, Bi-Hsuan Lin*, “Probing the exotic emission behaviors of Gd3+ ions in Gd3Ga5O12 wafer via X-ray excited optical luminescence”, Results in Optics, 23, 101002 (2026). Place：S101, Gongguan Campus, NTNU |
