Structure and Nonlinear Optical Properties of Glasses for Photonic Switching

1989 ◽  
Vol 152 ◽  
Author(s):  
E. M. Vogel ◽  
D. M. Krol ◽  
J. L. Jackel ◽  
J. S. Aitchison
Keyword(s):  
Optical Properties ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Empirical Relation ◽  
Electronic Configuration ◽  
Vitreous Silica ◽  
Nonlinear Optical Properties ◽  
Photonic Switching ◽  
Alkali Ions ◽  
The Difference

ABSTRACTThe possible use of glasses as the nonlinear optical material in all-optical switching calls for glasses with nonlinear refractive indices much higher than those of vitreous silica. Relatively high values of the nonlinear index coefficient, n2, have been found in Na2O-TiO2-Nb2O5-SiO2 glasses, in which n2 is completely dominated by the Ti-O and Nb-O bonds. We have investigated the nonlinear optical properties of R2O-TiO2-Nb2O5-SiO2 glasses as a function of the monovalent ion R (Na, K, Rb, Cs, TI). The results show that the dependence of n2 on R is larger than predicted from the empirical relation between n2 and n. An especially large enhancement of n2 is seen for T1. This can be explained by the difference in electronic configuration between TI (unfilled shell) and the alkali ions (filled shell).

scholarly journals Fused ring effect on optical nonlinearity and structure property relationship of anthracenyl chalcone based push-pull chromophores

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257808
Author(s):  
Dian Alwani Zainuri ◽  
Mundzir Abdullah ◽  
Muhamad Fikri Zaini ◽  
Hazri Bakhtiar ◽  
Suhana Arshad ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Electrostatic Potential ◽  
Nonlinear Refractive Index ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Excited State Absorption ◽  
Nonlinear Optical Properties ◽  
Closed Aperture

The Ultraviolet-visible (UV-Vis) spectra indicate that anthracenyl chalcones (ACs) have high maximum wavelengths and good transparency windows for optical applications and are suitable for optoelectronic applications owing to their HOMO–LUMO energy gaps (2.93 and 2.76 eV). Different donor substituents on the AC affect their dipole moments and nonlinear optical (NLO) responses. The positive, negative, and neutral electrostatic potential regions of the molecules were identified using molecular electrostatic potential (MEP). The stability of the molecule on account of hyperconjugative interactions and accompanying charge delocalization was analyzed using natural bond orbital (NBO) analysis. Open and closed aperture Z-scans were performed using a continuous-wave frequency-doubled diode-pumped solid-state (DPSS) laser to measure the nonlinear absorption and nonlinear refractive index coefficients, respectively. The valley-to-peak profile of AC indicated a negative nonlinear refractive index coefficient. The obtained single crystals possess reverse saturation absorption due to excited-state absorption. The structural and nonlinear optical properties of the molecules have been discussed, along with the role of anthracene substitution for enhancing the nonlinear optical properties. The calculated third-order susceptibility value was 1.10 x10-4 esu at an intensity of 4.1 kW/cm2, higher than the reported values for related chalcone derivatives. The NLO response for both ACs offers excellent potential in optical switching and limiting applications.

INVESTIGATION OF THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF BFDT-DOPED PMMA THIN FILMS USING Z-SCAN TECHNIQUE

2009 ◽  
Vol 23 (28) ◽  
pp. 3361-3368
Author(s):  
HELIANG FAN ◽  
XINQIANG WANG ◽  
QUAN REN ◽  
TINGBIN LI ◽  
JING SUN ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Doping Concentration ◽  
Quartz Substrate ◽  
Nonlinear Coefficient ◽  
Nonlinear Optical Properties ◽  
Potential Candidate ◽  
Third Order

A series of polymeric thin films with BFDT (BFDT = 4,5-bis(foroylsulfanyl)-1,3-dithiole-2-thione) doped in PMMA (polymethylmethacrylate) were fabricated by means of spin-coating on quartz substrate. The third-order nonlinear optical properties of the films were investigated by Z-scan technique at 532 nm wavelength with 20 ps pulse width. The influences of doping concentration for third-order nonlinearity were also studied. A self-defocusing effect was observed from the Z-scan curves and the nonlinear refractive index of the film increases with the increase in doping concentration. Our results suggest that considerable nonlinear optical properties were found in BFDT. In addition, it was found that the nonlinear coefficient of the BFDT-doped PMMA thin film was about two orders of magnitude larger than that of homologous materials with organic solvents. By analysis, we can conclude that the material is a potential candidate for applications of nonlinear optics and can be considered in the fabrication of all-optical switching devices, etc.

scholarly journals Third-Order Nonlinear Optical Properties and Ultrafast Optical Switching of Chalcogenide Glasses

1997 ◽  
Vol 105 (1228) ◽  
pp. 1115-1119 ◽  
Author(s):  
Kazuyuki HIRAO ◽  
Hirohisa KANBARA ◽  
Seiji FUJIWARA ◽  
Koichiro TANAKA ◽  
Naoki SUGIMOTO
Keyword(s):  
Optical Properties ◽  
Chalcogenide Glasses ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Ultrafast Optical

METAL NANOCLUSTER FORMATION BY ION IMPLANTATION IN SILICATE GLASSES: NONLINEAR OPTICAL APPLICATIONS

1996 ◽  
Vol 05 (02) ◽  
pp. 285-330 ◽  
Author(s):  
P. MAZZOLDI ◽  
G.W. ARNOLD ◽  
G. BATTAGLIN ◽  
F. GONELLA ◽  
R.F. HAGLUND
Keyword(s):  
Optical Properties ◽  
Ion Implantation ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Colloidal Particles ◽  
Nonlinear Optical Properties ◽  
Implantation Technique ◽  
Glass Substrates ◽  
Quantum Confinement Effects ◽  
Optical Applications

Implantation of metal ions (e.g., silver, copper, gold, lead) in glass substrates leads under certain circumstances to the formation of nanometer-radius colloidal particles in a thin surface layer. These particles exhibit an electron plasmon resonance which depends on the optical constants of the implanted metal and on the refractive index of the glass host. The nonlinear optical properties of such colloids, in particular the enhancement of optical Kerr susceptibility by both dielectric and quantum-confinement effects, suggest that the ion implantation technique may play an important role for the production of all-optical switching devices. A review of the state-of-the-art of the research in this field will be presented from the perspective of the nonlinear optical properties of ion-implanted glasses.

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