Third-order nonlinear optical properties of self-assembled thin films containing tetracarboxylic copper phthalocyanine

2009 ◽  
Vol 13 (12) ◽  
pp. 1243-1249 ◽  
Author(s):  
Chunying He ◽  
Guang Shi ◽  
Wubiao Duan ◽  
Yiqun Wu ◽  
Zhimin Chen ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Copper Phthalocyanine ◽  
Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Intense Laser ◽  
Layer By Layer ◽  
Third Order ◽  
Focusing Effect ◽  
Self Assembled

Films with alternating layers containing anionic tetracarboxylic copper phthalocyanine [ CuPc(COONa)4 ] and cationic polydiallydimethylammonium chloride (PDDA) were fabricated by electrostatic self-assembled layer-by-layer (LBL) technique. The delicate structure of the film was characterized by a series of techniques. The third-order nonlinear optical properties of the film were measured by the Z-scan technique with laser duration of 4 ns and 21 ps at the wavelength of 532 nm. The film exhibited excellent nonlinear absorption and self-focusing effect. The second-order molecular hyperpolarizability γ value of the film was much larger than that of CuPc(COONa)4 aqueous solution under the irradiation of whether ns or ps pulses. A series of damage experiments of the film for the intense laser pulses were conducted to prove the reliability of the experimental results under the conditions.

ROOM-TEMPERATURE SOLID-STATE REACTION TO TREE-LIKE FRACTAL NANO-CdS AND THIRD-ORDER NONLINEAR OPTICAL PROPERTIES

NANO ◽  
2013 ◽  
Vol 08 (04) ◽  
pp. 1350035
Author(s):  
TAO-YU ZHOU ◽  
HUI WANG ◽  
XIAO-PING KANG ◽  
XIN-QUAN XIN
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Cadmium Sulfide ◽  
Solid State Reaction ◽  
Nonlinear Optical ◽  
Room Temperature ◽  
Average Diameter ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Focusing Effect

A novel tree-like nano-cadmium sulfide (CdS) with the fractal feature is synthesized by solid-state reaction at room temperature from complex precursor with aminotrimethylenephosphonic acid (ATMP) as ligand. The obtained sample is the crystalline cubic beta cadmium sulfide. The tree is composed of nanorods with an average diameter of ca. 95 nm and a length of up to 100–650 nm. The nanorods grow in the asymmetrical "Y" shape. The amount of ATMP plays an important role in the formation of fractal structure. Nonlinear optical (NLO) measurements by the Z-scan technique exhibit that the tree-like fractal nano- CdS has the third-order nonlinear optical properties of both NLO absorption and NLO refraction with self-focusing effect and the optical limiting performance.

Effect of Electric Field on Nonlinear Optical Properties of Hydrazone Doped PMMA Films

2012 ◽  
Vol 584 ◽  
pp. 88-91
Author(s):  
N.K. Siji Narendran ◽  
K.R. Reshma ◽  
P. Sudheesh ◽  
K. Chandrasekharan
Keyword(s):  
Optical Properties ◽  
Electric Field ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Single Beam ◽  
Solution Casting Method ◽  
Order Susceptibility

We report the effect of electric field on third order nonlinear optical properties of Hydrazone (Hz) doped Polymethyl methacrylate (PMMA) films. The films were prepared by solution casting method. Poling of films was done by corona discharge. Single beam Z-scan technique with 7ns Nd: YAG laser pulses at 532nm were employed for the measurements. Third order susceptibility of films was measured with an emphasis on the applied electric field. We also demonstrated the second harmonic generation in the corona poled films.

Linear and third-order nonlinear optical properties of self-assembled plasmonic gold metasurfaces

Nanophotonics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 725-740 ◽  
Author(s):  
Anderson S.L. Gomes ◽  
Melissa Maldonado ◽  
Leonardo de S. Menezes ◽  
Lúcio H. Acioli ◽  
Cid B. de Araújo ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Building Blocks ◽  
Morphological Characterization ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Novel Structure ◽  
Wide Range ◽  
Self Assembled ◽  
Meta Atom

AbstractThe emergence of metamaterials (MMs) has led to groundbreaking photo-physical phenomena, which arise from their novel structure-dependent properties. Consisting of “meta-atom” building blocks, MMs can be organized into subwavelength metal/dielectric structures using bottom-up or top-down nanofabrication techniques. Optical metal metasurfaces are a class of MMs with macroscopic lateral dimensions but composed of one to few subwavelength layers of precisely oriented metal-based elements over a large surface area. In this review, we focus on gold metasurfaces, highlighting their fabrication methods, morphological characterization, as well as linear and nonlinear optical properties. We then review our recent work on fabricating and characterizing self-assembled gold metasurface. An interesting characteristics of the gold metasurfaces is their wide range of linear refractive indices, varying from n0 ~ 0.5 in the visible to n0 ~ 4 in the short wavelength infrared spectral region. Third-order nonlinearities are characterized by the Z-scan technique at wavelengths on- and off-plasmonic resonance of the gold metasurface. Experimental results on the relationship between the third-order nonlinearity of the self-assembled gold metasurface as a function of the linear response are presented for the first time. We conclude by discussing the potential applications and future outlook of self-assembled plasmonic metasurfaces.

Preparation of Two Carbazole Derivatives and its Third-Order Nonlinear Optical Properties

2010 ◽  
Vol 663-665 ◽  
pp. 231-234 ◽  
Author(s):  
Liang Li ◽  
Yi Qun Wu ◽  
Chun Ying He ◽  
Wu Biao Duan
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Carbazole Derivative ◽  
Single Beam ◽  
Carbazole Derivatives ◽  
Type D

Carbazole derivative is one sort of important nonlinear optical materials. In this work, new symmetric-type D-π-D carbazole derivatives, 3, 6 - di- substituted carbazole chromophores with two styryl bridges of the two-dimensional conjugated D-π-D system were synthesized via Witting reaction and characterized by IR, NMR and MS. The third-order nonlinear optical properties of the material were investigated using single-beam Z-scan technique with Sapphire femtosecond laser pulses at 800nm, repetition rate of 1 KHz and pulse width of 140fs. The results of Z-scan with and without an aperture showed that larger third-order nonlinear optical polarizabilities γ can be readily obtained in such carbazole chromophores because of the incorporation with two styryl bridges, increasing of conformational planarity and molecular conjugation length.

Third-Order Nonlinear Optical Properties of InN Thin Films Under 532 nm Nanosecond Laser Pulses

2017 ◽  
Vol 17 (2) ◽  
pp. 1460-1463
Author(s):  
Jin-Ying Wang ◽  
Zhe-Ming Jin ◽  
Ke-Xin Sun ◽  
Jin-Ding Sun ◽  
Cheng-Bao Yao ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Nanosecond Laser ◽  
Third Order ◽  
Nanosecond Laser Pulses ◽  
532 Nm

THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF [C7H7(C2H5)3N][Ni(dmit)2] USING Z-SCAN TECHNIQUE

2010 ◽  
Vol 24 (26) ◽  
pp. 2659-2667 ◽  
Author(s):  
JING-WEI CHEN ◽  
QUAN REN ◽  
XIN-QIANG WANG ◽  
HE-LIANG FAN ◽  
QIANG SUN
Keyword(s):  
Optical Properties ◽  
Cross Section ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Third Order ◽  
Intensity Dependence ◽  
Focusing Effect ◽  
Self Focusing

A novel dmit 2- complex: [ C 7 H 7( C 2 H 5)3 N ][ Ni ( dmit )2], abbreviated as BTEANDT, was synthesized and its third-order nonlinear optical properties were investigated by Z-scan technique at the wavelength of 1064 nm with laser duration of 20 ps. A self-focusing effect and a saturable absorption were observed. The nonlinear refraction coefficient n2 and the nonlinear absorption coefficient β have been found to be 7.311 × 10-18 m 2/W and -6.064 cm/GW when I0=3.025 GW/cm2. The intensity dependence curve of β was also studied and the result reveals that β is proportional to I0. We explained the result with the theory of absorption cross-section.

Shell-thickness-dependent nonlinear optical properties of colloidal gold nanoshells

2014 ◽  
Vol 2 (35) ◽  
pp. 7239-7246 ◽  
Author(s):  
Marta Gordel ◽  
Joanna Olesiak-Banska ◽  
Radoslaw Kolkowski ◽  
Katarzyna Matczyszyn ◽  
Malcolm Buckle ◽  
...  
Keyword(s):  
Optical Properties ◽  
Femtosecond Laser ◽  
Shell Thickness ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Gold Nanoshells ◽  
Third Order ◽  
Different Thickness

Third-order nonlinear optical properties of gold nanoshells of different thickness were investigated over a broad wavelength range (530–1200 nm) by the Z-scan technique using femtosecond laser pulses.

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