In-Situ Lorentz Microscopy with Femtosecond Optical Illumination
نویسندگان
چکیده
Ultrafast electron microscopy as a laser-pump/ electron-probe technique allows for the investigation of structural and electronic dynamics occurring at sub-picosecond timescales and nanometer length-scales [1,2]. However, current implementations necessitate compromises in electron source brightness compared to conventional electron microscopy techniques. Building on similar concepts in ultrafast surface science [3], in-situ transmission electron microscopy with temporally-structured optical sample excitation, employing femtosecond laser pulse trains, offers a complementary electron microscopy approach to access ultrafast processes.
منابع مشابه
Optical Limiting Properties of Colloids Enhanced by Gold Nanoparticles Based on Nonlinear Refraction for Cw Laser Illumination
In this work, thermo-optical properties of gold nanoparticle colloids are studied using continuous wave (CW) laser irradiation at 532 nm. The nanoparticle colloids are fabricated by 18 ns pulsed laser ablation of pure gold plate in the distilled water. The formation of the nanoparticles has been evidenced by optical absorption spectra and transmission electron microscopy. The nonlinear optical ...
متن کاملEx-situ studies on calcinations of structural, optical and morphological properties of post-growth nanoparticles CeO2 by HRTEM and SAED
Nanocrystalline particles of Cerium Oxide (CeO2) have been prepared by the chemical precipitation method using Cerium nitrate and Urea with a molar ratio of 1:2. The results revealed that the formation of CeO2 fine particles is influenced by molar ratio of metal nitrates to fuel. Well faceted CeO2 nanoparticles, were synthesized by thermal-assisted dissociation ...
متن کاملEx-situ studies on calcinations of structural, optical and morphological properties of post-growth nanoparticles CeO2 by HRTEM and SAED
Nanocrystalline particles of Cerium Oxide (CeO2) have been prepared by the chemical precipitation method using Cerium nitrate and Urea with a molar ratio of 1:2. The results revealed that the formation of CeO2 fine particles is influenced by molar ratio of metal nitrates to fuel. Well faceted CeO2 nanoparticles, were synthesized by thermal-assisted dissociation ...
متن کاملShaper-assisted collinear SPIDER: fast and simple broadband pulse compression in nonlinear microscopy
In situ characterization and control of the phase of broadband femtosecond pulses in microscopy can be achieved with a novel simplified scheme based on spectral shear interferometry for direct electric field reconstruction (SPIDER): the use of a femtosecond pulse shaper eliminates the need for an interferometer setup, allows dispersion-free SPIDER operation and at the same time compression even...
متن کاملUnilateral rainbow glare after uncomplicated femto-LASIK using the FS-200 femtosecond laser.
PURPOSE To report a case of rainbow glare following femtosecond laser-assisted LASIK (femto-LASIK) with the Wavelight FS-200 femtosecond laser (Alcon Laboratories, Inc., Fort Worth, TX). METHODS A patient was treated bilaterally for myopia with femto-LASIK using the FS-200 femtosecond laser. Postoperatively, he complained of rainbow glare in his right eye. RESULTS Three months postoperative...
متن کامل