second harmonic
Second harmonic generation in III-nitride waveguides
... These low-loss planar GaN waveguides were used for the demonstration of an efficient second harmonic generation process using modal phase matching and a nonlinear interaction between a T[r] ...
148
Application of classical models of chirality to surface second harmonic generation
... characters to the optical transitions. 9 The former model has been successfully applied to describe excitonic coupling and the latter helical polymers for example. However, extension of these models to ...
10
Indole adsorption to a lipid monolayer studied by optical second harmonic generation
... ReceiVed: October 28, 2008; ReVised Manuscript ReceiVed: May 25, 2009 Adsorption of indole from an aqueous subphase to a lipid (DPPC) monolayer at the air/water interface is studied by nonresonant second ...
16
Defects and strain enhancements of second-harmonic generation in Si/Ge superlattices
... rable with that of the without-defect Si 5 /Ge 5 structure (black line) as experimentally observed. This indicates that the re- laxation at the interface of Si and Ge alone does not account for the ...
8
Whispering-gallery-mode analysis of phase-matched doubly resonant second-harmonic generation
... resonant second-harmonic generation Yannick Dumeige * and Patrice Féron ENSSAT-FOTON (CNRS-UMR 6082)–Université de Rennes 1, 6 rue de Kerampont, Boîte Postal 80518, 22300 Lannion, France We propose a ...
8
Numerical simulation of polarization-resolved second harmonic microscopy in birefringent media
... Polarization-resolved second-harmonic generation (PSHG) microscopy has recently emerged as a promising modality in nonlinear microscopy, which can probe three-dimensional structural features in biological ...
16
Multi-stimuli manipulation of antiferromagnetic domains assessed by second-harmonic imaging
... Multi-stimuli manipulation of antiferromagnetic domains assessed by second-harmonic imaging J.-Y. Chauleau 1 † , E. Haltz 1 , C. Carrétéro 2 , S. Fusil 2 and M. Viret 1 * Among the variety of magnetic ...
7
Nonlinear properties of RTP for second harmonic generation at 1030nm (orale)
... Loïc Deyra acknowledge the DGA for the funding of his PhD References [1] H. Albrecht, P. Villeval, and C. Bonnin, “Study of RTP crystal used as Electro-Optic modulator,” Advanced Solid-State Photonics, pp. 3–5, 2006. [2] ...
4
Efficient second harmonic generation in nanophotonic waveguides for optical signal processing
... however the SHG power is in the pW range. Efficient SHG is possible in waveguides 7 , however this is only true if the phase matching between the fundamental and the second harmonic is ensured, which is ...
5
Asymmetric Optical Second-Harmonic Generation from Chiral G-Shaped Gold Nanostructures
... (Received 4 June 2009; published 26 March 2010) We present a new electromagnetic phenomenon—the asymmetric second-harmonic generation from planar chiral structures. The effect consists in distinguishing the ...
4
First principles Second-Harmonic Generation in quantum confined silicon-based systems
... Chapter 8 Conclusions In this thesis I have dealt with the description of the nonlinear optical proper- ties of materials, with a particular interest in quantum confined, silicon-based systems. The state of the art of ...
201
Is the second harmonic method applicable for thin films mechanical properties characterization by nanoindentation?
... the second harmonic method depends also on the derivative of the contact depth with respect to the indentation depth, the variation of dh c /dh versus a/t ratio was plotted in ...
26
Second harmonic generation in gallium phosphide microdisks on silicon: from strict $\bar{4}$ to random quasi-phase matching
... and harmonic fields [11, 12]. In the framework of second harmonic generation (SHG), the chromatic dispersion introduces a phase mismatch between the fundamental polarization and the generated ...
13
Cavity Resonator Integrated Grating Filters : recent advances for laser wavelength stabilization and enhanced second harmonic generation
... The second approach relies on thermo-optic materials. By using a thin film of LiNbO 3 for the waveguide (that is a strongly non-linear, electro-optic and thermo-optic material), one can achieve tuning by altering ...
5
Design of a 460 GHz Second Harmonic Gyrotron Oscillator for use in Dynamic Nuclear Polarization
... . Second harmonic operation requires careful analysis in order to optimize the oscillator design under conditions of moderate gain, high ohmic loss, and competition from fundamental (ω ≈ ω c ) ...
97
Comparative study of nonlinear-optical polymers for guided-wave second-harmonic generation at telecommunication wavelengths
... terized by a broad Gaussian linewidth, which is respon- sible for the relatively strong absorption of (2.5 ⫾ 0.3) cm ⫺1 at the second-harmonic wavelength of 0.78 m. The fitted Gaussian linewidth in the ...
12
Fast stimulated Raman and second harmonic generation imaging for intraoperative gastro-intestinal cancer detection
... Conclusion In this paper, stimulated Raman scattering (SRS) microscopy was used in association with second harmonic generation (SHG) microscopy to visualize tissue sections from healthy and cancerous human ...
11
Resonant second harmonic generation in a gallium nitride two-dimensional photonic crystal on silicon
... resolved second harmonic signal represented in false ...The second har- monic signal is obtained for the cavity pumped on ...the second harmonic signal along the photonic crystal length ...
6
Long-range corrected exchange-correlation kernels to describe excitons in second-harmonic generation
... I. INTRODUCTION Second-harmonic generation (SHG) spectroscopy is a powerful and versatile technique used to probe the properties of matter [1–4]. In particular, in the recent years, SHG has been ...
26
Development of multilayered and W03 nanoparticle silica-based fibers for second harmonic generation
... of second harmonic in materials [60-62] Visible short or ultra-short pulsed lasers are useful for a large array of applications, such as spectroscopy, non-linear microscopy or ...3.3.1. Second-order ...
145