Design of New Copolymers for Photonics Applications: Incorporation of Nlo-Active Chromophores with Well-Defined Conjugation Lengths

1995 ◽  
Vol 413 ◽  
Author(s):  
Charles W. Spangler ◽  
Mingqian He
Keyword(s):  
Nonlinear Optical ◽  
Near Infrared ◽  
Phenylene Vinylene ◽  
Third Order ◽  
Conductive Materials ◽  
Oxidative Doping ◽  
Doped Polymers ◽  
Degree Of Control ◽  
Neutral Polymer ◽  
Absorption Characteristics

ABSTRACTElectroactive polymers such as poly [p-phenylene vinylene] (PPV) and poly [2,5-thienylene vinylene] (PTV) have been shown to yield highly conductive materials upon oxidative doping,1 and to display enhanced third order nonlinear optical response.2 Optical absorption spectra for either neutral or doped polymers, however, are quite broad, extending well into the visible for the neutral polymer and into the near infrared (NIR) for the doped polymers, with little evident fine structure. For certain nonlinear optical (NLO) applications, this can lead to undesirable absorption losses and resonance phenomena. We would like to describe how copolymers incorporating oligomeric dithienylpolyene segments may be designed so as to give some degree of control over the polymer absorption characteristics in either neutral or oxidized form.

A series of terpyridine-based zinc(ii) complexes assembled for third-order nonlinear optical responses in the near-infrared region and recognizing lipid membranes

2017 ◽  
Vol 5 (31) ◽  
pp. 6348-6355 ◽  
Author(s):  
Yiwen Tang ◽  
Ming Kong ◽  
Xiaohe Tian ◽  
Jinghang Wang ◽  
Qingyuan Xie ◽  
...  
Keyword(s):  
Lipid Membranes ◽  
Nonlinear Optical ◽  
Near Infrared ◽  
Infrared Region ◽  
Biological Imaging ◽  
Tissue Penetration ◽  
Third Order ◽  
Two Photon ◽  
Optical Responses ◽  
Near Infrared Region

Two-photon (TP) microscopy has advantages for biological imaging in that it allows deeper tissue-penetration and excellent resolution compared with one-photon (OP) microscopy.

Third-order nonlinear optical response of CuInS2quantum dots—Bright probes for near-infrared biodetection

2013 ◽  
Vol 102 (24) ◽  
pp. 243702 ◽  
Author(s):  
B. Cichy ◽  
D. Wawrzynczyk ◽  
A. Bednarkiewicz ◽  
M. Samoc ◽  
W. Strek
Keyword(s):  
Nonlinear Optical ◽  
Near Infrared ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Third Order

Doped Polymers as Third-Order Nonlinear-Optical Materials

1990 ◽  
Vol 214 ◽  
Author(s):  
Mark. G. Kuzyk ◽  
U. C. Paek ◽  
Carl W. Dirk ◽  
Mark P. Andrews
Keyword(s):  
Optical Materials ◽  
Nonlinear Optical ◽  
Polymeric Materials ◽  
Optical Nonlinearity ◽  
Third Order ◽  
Optical Device ◽  
Optical Fiber Devices ◽  
The Status ◽  
Device Applications ◽  
Doped Polymers

ABSTRACTRecently, there has been much interest in doped polymeric materials owing to their suitability for optical device applications.[1] While most of this effort has been centered on poled polymers and their applications to electrooptics, doped polymers are beginning to emerge as a promising material class for all-optical device applications. In this contribution, we discuss the status of doped polymers as third-order optical materials. Particular attention is focused on those properties that make doped polymers attractive as device materials such as optical nonlinearity and loss and their suitability for nonlinear-optical fiber devices.

Third-Order Nonlinear Optical Coefficients of Si and GaAs in the Near-Infrared Spectral Region

2018 ◽  
Author(s):  
Joel M. Hales ◽  
San-Hui Chi ◽  
Taylor Allen ◽  
Sepehr Benis ◽  
Natalia Munera ◽  
...  
Keyword(s):  
Spectral Region ◽  
Nonlinear Optical ◽  
Near Infrared ◽  
Third Order ◽  
Infrared Spectral Region ◽  
Infrared Spectral

The Synthesis of Diphenylpolenes and PPV-Oligomers Incorporating Diphenylphosphino Donor Groups

1999 ◽  
Vol 561 ◽  
Author(s):  
L. G. Madrigal ◽  
C.W. Spangler
Keyword(s):  
Optical Properties ◽  
Systematic Study ◽  
Nonlinear Optical ◽  
Nonlinear Response ◽  
Organic Molecules ◽  
Nonlinear Optical Properties ◽  
Research Groups ◽  
Third Order ◽  
Electron Donating Groups ◽  
Absorption Characteristics

ABSTRACTPrevious studies of the second and third order nonlinear optical properties of organic molecules have shown enhancement of the nonlinear response when second row elements replace first row elements (e. g. S for O) in electron donating groups. Various substituted amino functionalities have been utilized extensively as strong donors in the design of molecules for both second and third order NLO applications. However, to date, no research groups have reported a systematic study of the effect of replacing N (nitrogen) by P (phosphorus) in various chromophore functionalities. We have now synthesized a series of bis(diphenylphosphio)diphenylpolyenes with up to five double bonds, a bis-(diphenylphosphino)-PPV dimer, and a diphenylphosphino DANS equivalent. The absorption characteristics compared to the N equivalents, and the implications for photonics applications will be discussed.

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