Second-harmonic generation (SHG), also known as frequency doubling, is the lowest-order wave-wave nonlinear interaction that occurs in various systems...
51 KB (6,842 words) - 16:44, 21 March 2025
Harmonic generation (HG, also called multiple harmonic generation) is a nonlinear optical process in which n {\displaystyle n} photons with the same frequency...
7 KB (786 words) - 16:36, 5 April 2024
Surface second harmonic generation is a method for probing interfaces in atomic and molecular systems. In second harmonic generation (SHG), the light frequency...
22 KB (2,971 words) - 19:10, 8 October 2024
Second-harmonic imaging microscopy (SHIM) is based on a nonlinear optical effect known as second-harmonic generation (SHG). SHIM has been established as...
48 KB (5,024 words) - 15:51, 7 January 2025
_{1}+\hbar \omega _{2}} A special case of sum-frequency generation is second-harmonic generation, in which ω 1 = ω 2 {\displaystyle \omega _{1}=\omega _{2}}...
3 KB (429 words) - 18:28, 18 March 2023
High-harmonic generation (HHG) is a non-linear process during which a target (gas, plasma, solid or liquid sample) is illuminated by an intense laser...
22 KB (2,915 words) - 09:43, 28 February 2025
wavelength of the initial photons. The half-harmonic generation process is the inverse of second-harmonic generation and can occur in optical parametric oscillators...
3 KB (396 words) - 02:41, 28 November 2023
Kleinman symmetry (category Second-harmonic generation)
terms required to fully describe the second order polarisation response. Nonlinear optics Second-harmonic generation Crystal symmetry Dailey, Christopher...
4 KB (578 words) - 09:09, 13 January 2024
Nonlinear optics (redirect from Harmonic Generation)
observation of two-photon absorption at Bell Labs and the discovery of second-harmonic generation by Peter Franken et al. at University of Michigan, both shortly...
53 KB (6,736 words) - 22:47, 7 June 2024
autocorrelation signal is generated by the nonlinear process of second-harmonic generation (SHG). Other techniques based on two-photon absorption may also...
10 KB (1,161 words) - 09:37, 28 February 2025
Optical frequency multiplier (category Second-harmonic generation)
to achieve the conversion: second-harmonic generation (SHG, also called frequency doubling), or sum-frequency generation which sums two non-similar frequencies...
3 KB (296 words) - 06:11, 2 September 2024
Quasi-phase-matching (category Second-harmonic generation)
compute the nonlinearly-generated signal amplitude in the case of second harmonic generation, where a strong pump at ω 1 {\displaystyle \omega _{1}} produces...
14 KB (2,548 words) - 09:29, 10 May 2024
Potassium titanyl phosphate (category Second-harmonic generation)
transmission out to 4500 nm where the crystal is effectively opaque. Its second-harmonic generation (SHG) coefficient is about three times higher than KDP. It has...
7 KB (641 words) - 23:07, 18 May 2024
in 1987 by Yuen-Ron Shen and his students as an extension of second harmonic generation spectroscopy and rapidly applied to deduce the composition, orientation...
15 KB (2,590 words) - 14:50, 3 February 2025
Monopotassium phosphate (category Second-harmonic generation)
used in optical modulators and for non-linear optics such as second-harmonic generation (SHG). Potassium dideuterium phosphate (KDP), with slightly different...
10 KB (673 words) - 13:50, 15 April 2025
Kelvin probe force microscopy (KFM) and the electric-field induced second harmonic generation. In the semiconductor industry, Cross-Bridge Kelvin Resistor(CBKR)...
18 KB (1,854 words) - 03:41, 23 October 2024
used as nonlinear optical materials. They are more efficient at second-harmonic generation than crystals of the same material without periodic structure...
2 KB (194 words) - 23:31, 18 March 2024
transistors, solar cells, LEDs, lasers, single-photon sources, second-harmonic generation, quantum computing, cell biology research, microscopy, and medical...
117 KB (13,793 words) - 06:52, 5 April 2025
addition, other non-linear effects besides second harmonic generation may be used, such as third harmonic generation (THG) or polarization gating (PG). These...
12 KB (1,924 words) - 16:34, 12 September 2024
as the piezoelectric effect and the frequency doubling effect (second-harmonic generation). In addition, in such crystals, one-photon absorption (OPA) and...
4 KB (392 words) - 18:50, 27 February 2024
two-photon-based lithography. Using two-photon fluorescence and second-harmonic generation–based microscopy, it was shown that organic porphyrin-type molecules...
35 KB (3,552 words) - 00:29, 2 April 2025
based on surface plasmons were developed. In surface second harmonic generation, the second harmonic signal is proportional to the square of the electric...
14 KB (1,403 words) - 11:33, 15 March 2025
rectification also occurs on metal surfaces by similar effect as surface second harmonic generation. The effect is however influenced e. g. by nonequilibrium electron...
6 KB (611 words) - 23:54, 17 June 2020
self-organisms. It is also a nonlinear optical material with second harmonic generation efficiency 1.68 times that of KDP. L-arginine maleate dihydrate...
3 KB (318 words) - 20:16, 30 December 2023
Frequency synthesizer (category Second-harmonic generation)
frequencies. Some approaches include phase locked loops, double mix, triple mix, harmonic, double mix divide, and direct digital synthesis (DDS). The choice of approach...
23 KB (2,855 words) - 17:10, 1 April 2025
structure, similar to that of GaS. It is a photoconductor, a second harmonic generation crystal in nonlinear optics, and has been used as a far-infrared...
10 KB (1,065 words) - 09:43, 27 September 2023
components in chip-scale photonic circuits. In surface second harmonic generation, the second harmonic signal is proportional to the square of the electric...
39 KB (5,113 words) - 11:18, 15 March 2025
at the University of Michigan observed for the first time the second-harmonic generation. This event launched a golden age in optical physics that has...
3 KB (221 words) - 16:23, 7 January 2025
Lithium niobate (category Second-harmonic generation)
between 5 and 35 μm. The shorter periods of this range are used for second-harmonic generation, while the longer ones for optical parametric oscillation. Periodic...
22 KB (2,248 words) - 18:29, 19 February 2025
non-linear optical processes such as two-photon fluorescence or second harmonic generation. In scanning multiphoton microscopes the high intensities are...
13 KB (1,699 words) - 19:27, 18 May 2024