+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Microscopic second harmonic generation (SHG) from tilt-placed collagen fibrils

, : Microscopic second harmonic generation (SHG) from tilt-placed collagen fibrils. General Physiology and Biophysics 30(2): 175-185

We report a theoretical study of second-harmonic generation (SHG) from the collagen fibrils which have a tilt angle Φ between their axes with the plane of the polarization angle α of the linearly polarized focused light. The effects of Φ as well as α on SHG emission have been investigated. Our results show that the total strength of SHG electrical field (E(2ω)) and power (P(2ω)) reach their maximal values as Φ locates at a certain angle, here it is around 27° under all demonstrated α. When Φ < 27°, E(2ω) and P(2ω) gradually increase to their maximal value, while when Φ > 27°, they quickly drops. Specially, E(2ω) and P(2ω) are almost undetectable when Φ ≥ 45°. Also, Φ influences the distribution pattern of E(2ω), P(2ω) and their parallel (E(2ω,p), P(2ω,p)) and perpendicular (E(2ω,s), P(2ω,s)) components, such as the number of emission lobes and shape. α has unevenly impact on E(2ω) and P(2ω), the far deviation of α from x axis induce much great decrease of E(2ω) and P(2ω). α = 45° has special influence on the distribution pattern of E(2ω,s), E(2ω), P(2ω,s) as well as P(2ω) compared to those of α = 0° and 90°.


PMID: 21613673

DOI: 10.4149/gpb_2011_02_175

Other references

Hughes, N.; Mason, S.; Jeffery, P.; Welton, H.; Tobin, M.; O'Shea, C.; Browne, M., 2010: A comparative clinical study investigating the efficacy of a test dentifrice containing 8% strontium acetate and 1040 ppm sodium fluoride versus a marketed control dentifrice containing 8% arginine, calcium carbonate, and 1450 ppm sodium monofluorophosphate in reducing dentinal hypersensitivity. The objective of this clinical study was to evaluate and compare the efficacy in reducing dentin hypersensitivity of an 8% strontium acetate, 1040 ppm sodium fluoride dentifrice to a marketed control 8% arginine, calcium carbonate, 1450 ppm sodium...

Kamada, H.; Akagi, S.; Watanabe, S., 2017: Astaxanthin increases progesterone production in cultured bovine luteal cells. Although astaxanthin (AST) is known to be a strong antioxidant, its effects on reproductive function in domestic animals have not yet been elucidated in detail. Therefore, we investigated the effects of AST on luteal cells, which produce progester...

Fernandez, F.; Berlant, H.D., 1985: ABC analysis--a basic guide to one of the most useful techniques in inventory control. Hospital Topics 63(3): 46-48

Warn, R., 1994: Growth factors. A scattering of factors. Hepatocyte growth factor/scatter factor is a multifunctional growth factor with varied properties: more and more polypeptide factors are being discovered that share these characteristics.

Orlowski, M.; Richman, P.G.; Meister, A., 1969: Isolation and properties of gamma-L-glutamylcyclotransferase from human brain. Biochemistry 8(3): 1048-1055

Sanders, C.A.; Friedlich, A.L., 1964: Misleading Electrocardiographic Findings In Severe Aortic Stenosis. Medicine 43: 393-399

Campos Polo, R.; Rubio Sánchez, C.; García Guisado, D.M.; Díaz Luque, M.J., 2017: Eplerenone, a new treatment for an old problem: Retinitis pigmentosa with recalcitrant macular edema. The case involves a 35-year-old man, with a history of retinitis pigmentosa, who presented with a bilateral cystoid macular oedema associated with bilateral epiretinal membrane, which was resistant to treatment with oral acetazolamide and intravit...

Schwartz, S.S., 1977: An unfinished phantasy. Ajr. American Journal of Roentgenology 129(6): 1139-1139

Glossmann, H.; Striessnig, J.; Hymel, L.; Schindler, H., 1987: Purified L-type calcium channels: only one single polypeptide (alpha 1-subunit) carries the drug receptor domains and is regulated by protein kinases. The L-type calcium channel was purified from guinea-pig skeletal muscle T-tubule membranes. The purified preparation retained the binding activity for 1,4 dihydropyridines, phenylalkylamines and d-cis diltiazem. Four polypeptides with apparent mol...

Stevenson, D.A.; Carey, J.C., 2003: Pierre Robin sequence, enlarged cisterna magna, camptodactyly, and distinctive facial appearance in two sisters Phenotypic variability of a known syndrome or a new syndrome?. Pediatric Research 53(4 Part 2): 81A, April