نتایج جستجو برای: optical harmonic generation

تعداد نتایج: 647763  

2012
Ido Dolev Ana Libster

Related Articles High-order harmonic generation at 4MHz as a light source for time-of-flight photoemission spectroscopy Appl. Phys. Lett. 101, 071116 (2012) Terahertz intracavity generation from output coupler consisting of stacked GaP plates Appl. Phys. Lett. 101, 021107 (2012) Analyzing photo-induced interfacial charging in IZO/pentacene/C60/bathocuproine/Al organic solar cells by electric-fi...

Journal: :Optics letters 2007
Tal Ellenbogen Ady Arie Solomon M Saltiel

We demonstrate simultaneous phase matching of two different nonlinear processes, using a noncollinear interaction in periodically poled crystal with single grating. The noncollinear scheme provides phase-matching solutions over continuous regions of the optical spectrum and can be used for multiple-harmonic generation as well as all-optical effects. We have demonstrated experimentally third-har...

2017
P.-A. Chollet F. Kajzar J. Messier J.-M. Nunzi D. Grec

2014 Optical nonlinear properties of semiconducting organic polymers with one dimensional 03C0 electron system are described. The third order nonlinear susceptibility of these polymers is specially high (#10-10 esu) and their time response very short (~ 1 ps ). Three and two photon resonances due to even and odd parity excited states are observed by third harmonic generation (THG) and by electr...

Journal: :Optics letters 2011
Varun Raghunathan Yang Han Olaf Korth Nien-Hui Ge Eric Olaf Potma

We demonstrate rapid vibrational imaging based on sum frequency generation (SFG) microscopy with a collinear excitation geometry. Using the tunable picosecond pulses from a high-repetition-rate optical parametric oscillator, vibrationally selective imaging of collagen fibers is achieved with submicrometer lateral resolution. We furthermore show simultaneous SFG and second harmonic generation im...

Journal: :Physical review letters 2014
Shumei Chen Guixin Li Franziska Zeuner Wing Han Wong Edwin Yue Bun Pun Thomas Zentgraf Kok Wai Cheah Shuang Zhang

Nonlinear processes are often governed by selection rules imposed by the symmetries of the molecular configurations. The most well-known examples include the role of centrosymmetry breaking for the generation of even harmonics, and the selection rule related to the rotational symmetry in harmonic generation for fundamental beams with circular polarizations. While the role of centrosymmetry brea...

2005
Matthew Reid Igor V. Cravetchi Robert Fedosejevs

Polarized second-harmonic generation and terahertz radiation in reflection from 100 , 110 , and 111 faces of n-type InAs crystals are investigated as a function of the sample azimuthal orientation under excitation from femtosecond Ti:sapphire laser pulses. The expressions describing the second-order response optical secondharmonic generation and optical rectification in reflection from zinc-ble...

Journal: :Optics letters 2009
Ping-Hsun Lin Ming-Chang Chou Ming-Jhe Jiang Po-Chang Tseng Hsu-Hsin Chu Jiunn-Yuan Lin Jyhpyng Wang Szu-Yuan Chen

A strongly saturated waveguide-based optical-field-ionization soft-x-ray laser seeded by high harmonic generation was demonstrated for Ni-like Kr lasing at 32.8 nm. Compared with the same laser seeded only with spontaneous emission, seeding with high harmonics yields much smaller divergence, enhanced spatial coherence, and controlled polarization. The integration of high harmonic seeding, optic...

2000
H. Regensburger R. Vollmer J. Kirschner

Relaxation processes on the picosecond and subpicosecond time scale after optical excitation have been studied by time-resolved magnetization-induced second-harmonic generation from ferromagnetic nickel. A fast drop of the second-harmonic intensity and the Kerr-signal within 300 fs after optical excitation has been observed which is followed by a partial recovery within a few picoseconds. We sh...

2016
Kyung Taec Kim Kyungseung Kim T J Hammond

An arbitrary optical waveform can be measured using the technique called the ‘petahertz optical oscilloscope’ in which an electron trajectory in the process of high harmonic generation is used as a fast temporal gate. In the petahertz optical oscilloscope, a signal laser pulse that needs to be measured is superposed on a fundamental laser pulse that generates high harmonic radiation. The additi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم پایه 1388

چکیده ندارد.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید