Third harmonic generation and microscopy, enhanced by a bias harmonic field
نویسندگان
چکیده
منابع مشابه
Imaging Caenorhabditis elegans embryogenesis by third-harmonic generation microscopy.
In this study, third-harmonic generation (THG) imaging measurements were performed to characterize different developmental stages of the nematode Caenorhabditis elegans (C. elegans) embryos. Femtosecond laser pulses (1028 nm) were utilized for excitation. THG image contrast modality proved as a powerful diagnostic tool, providing valuable information and offering new insights into the complex d...
متن کاملSimultaneous four-photon luminescence, third-harmonic generation, and second-harmonic generation microscopy of GaN.
We demonstrate what is to our knowledge the first example of four-photon luminescence microscopy in GaN and apply it to quality mapping of bulk GaN. The simultaneously acquired second- and third-harmonic generation can be used to map the distribution of the piezoelectric field and the band-tail state density, respectively. Through spectrum- and power-dependent studies, the fourth power dependen...
متن کاملThird-harmonic generation microscopy with Bessel beams: a numerical study.
We study theoretically and numerically third-harmonic generation (THG) from model geometries (interfaces, slabs, periodic media) illuminated by Bessel beams produced by focusing an annular intensity profile. Bessel beams exhibit a phase and intensity distribution near focus different from Gaussian beams, resulting in distinct THG phase matching properties and coherent scattering directions. Exc...
متن کاملThird harmonic generation microscopy of a mouse retina
PURPOSE To demonstrate lipid-specific imaging of the retina through the use of third harmonic generation (THG), a multiphoton microscopic technique in which tissue contrast is generated from optical inhomogeneities. METHODS A custom fiber laser and multiphoton microscope was constructed and optimized for simultaneous two-photon autofluorescence (TPAF) and THG retinal imaging. Imaging was perf...
متن کاملVisualize susceptibility information with third harmonic generation microscopy and spectroscopy
Third harmonic generation (THG) microscopy and spectroscopy was a modality suitable for in vivo clinical imaging and molecular analysis, due to their characteristics of high penetration depth, high resolution, and no energy deposition [1]. Our previous study indicated that THG spectra depend on nonlinear susceptibility (χ3), which is related to the absorption characteristics of a molecule, due ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Communications
سال: 2020
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2019.124660