Second-harmonic generation (SHG), also known as frequency doubling, is the lowest-order wave-wave nonlinear interaction that occurs in various systems...
52 KB (6,841 words) - 01:18, 9 July 2024
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...
21 KB (2,907 words) - 04:35, 5 December 2023
_{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 (2,914 words) - 00:59, 27 August 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) - 15:52, 26 June 2024
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
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
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
autocorrelation signal is generated by the nonlinear process of second-harmonic generation (SHG). Other techniques based on two-photon absorption may also...
10 KB (1,151 words) - 09:04, 19 February 2024
THz spectroscopy. With Walter Margulis, he discovered efficient second-harmonic generation in optical fibers, and his optical precursor studies are particular...
5 KB (451 words) - 06:37, 23 August 2024
Monopotassium phosphate (category Second-harmonic generation)
used in optical modulators and for non-linear optics such as second-harmonic generation (SHG). Also, to be noted is KD*P, potassium dideuterium phosphate...
10 KB (698 words) - 19:52, 28 November 2023
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) - 12:00, 21 May 2021
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...
25 KB (3,003 words) - 14:43, 20 August 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
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
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...
21 KB (2,191 words) - 20:26, 15 May 2024
Kelvin probe force microscopy (KFM) and the electric-field induced second harmonic generation. In the semiconductor industry, Cross-Bridge Kelvin Resistor(CBKR)...
18 KB (1,853 words) - 23:55, 10 July 2024
transistors, solar cells, LEDs, lasers, single-photon sources, second-harmonic generation, quantum computing, cell biology research, microscopy, and medical...
113 KB (13,191 words) - 00:10, 28 August 2024
based on surface plasmons were developed. In surface second harmonic generation, the second harmonic signal is proportional to the square of the electric...
13 KB (1,394 words) - 11:55, 18 May 2024
two-photon-based lithography. Using two-photon fluorescence and second-harmonic generation–based microscopy, it was shown that organic porphyrin-type molecules...
34 KB (3,475 words) - 19:51, 14 August 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
The team investigated the hyper Rayleigh scattering (at the second harmonic generation frequency) from chiral nanohelices made of silver. Valev and his...
10 KB (977 words) - 09:07, 16 December 2023
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) - 03:05, 19 February 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 (2,589 words) - 13:38, 18 March 2023
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
chemical and mechanical properties. This crystal is often used for second harmonic generation (SHG, also known as frequency doubling), for example of Nd:YAG...
3 KB (268 words) - 19:07, 26 August 2024
1st harmonic; the other harmonics are known as higher harmonics. As all harmonics are periodic at the fundamental frequency, the sum of harmonics is also...
24 KB (2,206 words) - 01:19, 21 June 2024
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
Light (redirect from Light generation)
pulsed laser source appeared green, which suggests the presence of second harmonic generation in the retina. Lynch, David K.; Livingston, William Charles (2001)...
51 KB (6,346 words) - 23:00, 17 August 2024