Article Details

Tomographic Extraction of the Internuclear Separation Based on Two-Center Interference with Aligned Diatomic Molecules

Oleh   RenPing Sun [-]
Kontributor / Dosen Pembimbing : XuanYang Lai,; ShaoGang Yu,; YanLan Wang,; SongPo Xu,; Wei Quan,; and XiaoJun Liu
Jenis Koleksi : Jurnal elektronik
Penerbit : FMIPA - Fisika
Fakultas : Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)
Subjek :
Kata Kunci : -
Sumber : PHYSICAL REVIEW LETTERS 122, 193202 (2019); © 2019 American Physical Society
Staf Input/Edit : Ratnasari  
File : 1 file
Tanggal Input : 2019-05-16 09:32:15

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We experimentally investigate the two-dimensional photoelectron momentum spectra of aligned diatomic molecules in an intense laser field. Our results reveal a novel prominent valley structure in the molecular alignment dependence of the high-energy photoelectron spectra along the laser polarization. Resorting to the molecular strong-field approximation and a simple semiclassical analysis, we show that this valley structure stems from the destructive two-center interference of the laser-driven rescattered electrons in diatomic molecules. Based on this two-center interference with aligned diatomic molecules, we demonstrate for the first time a tomographic method to extract the molecular internuclear separation, providing a more straightforward approach of molecular imaging, in comparison with, e.g., laser-induced electron diffraction and fixed-angle broadband laser-driven electron scattering.