Third-order nonlinear optical studies of anthraquinone dyes using a CW He-Ne laser

S. Pramodini, P. Poornesh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We present investigations on the third-order optical nonlinearity and optical power limiting of anthraquinone dyes. Z-scan measurements were performed using a continuous wave He-Ne laser at 633 nm wavelength as an excitation source. The nonlinear refraction studies exhibited self-defocusing behavior of the dyes. The nonlinear absorption in the dyes was dominated by a reverse saturable absorption process. Self-diffraction ring patterns were observed due to the change in refractive index and thermal lensing. Increase of the electron donating ability of the substituents resulted in enhanced values of the nonlinear optical parameters, establishing the structure-property relationship. The optical limiting study revealed that the dyes possess a lower limiting threshold and clamping level which is very important for eye and sensor protection. Hence, the dyes investigated here emerge as promising candidates for future opto-electronic and photonic device applications such as optical power limiters.

Original languageEnglish
Article number055402
JournalLaser Physics
Volume24
Issue number5
DOIs
Publication statusPublished - 01-01-2014

Fingerprint

anthraquinones
Dyes
dyes
Lasers
lasers
eye protection
power limiters
Photonic devices
thermal lensing
Limiters
defocusing
Refraction
Optoelectronic devices
continuous radiation
refraction
Refractive index
Diffraction
nonlinearity
photonics
refractivity

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Industrial and Manufacturing Engineering

Cite this

@article{b63a78c8052b43d39204c2ac63a38441,
title = "Third-order nonlinear optical studies of anthraquinone dyes using a CW He-Ne laser",
abstract = "We present investigations on the third-order optical nonlinearity and optical power limiting of anthraquinone dyes. Z-scan measurements were performed using a continuous wave He-Ne laser at 633 nm wavelength as an excitation source. The nonlinear refraction studies exhibited self-defocusing behavior of the dyes. The nonlinear absorption in the dyes was dominated by a reverse saturable absorption process. Self-diffraction ring patterns were observed due to the change in refractive index and thermal lensing. Increase of the electron donating ability of the substituents resulted in enhanced values of the nonlinear optical parameters, establishing the structure-property relationship. The optical limiting study revealed that the dyes possess a lower limiting threshold and clamping level which is very important for eye and sensor protection. Hence, the dyes investigated here emerge as promising candidates for future opto-electronic and photonic device applications such as optical power limiters.",
author = "S. Pramodini and P. Poornesh",
year = "2014",
month = "1",
day = "1",
doi = "10.1088/1054-660X/24/5/055402",
language = "English",
volume = "24",
journal = "Laser Physics",
issn = "1054-660X",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "5",

}

Third-order nonlinear optical studies of anthraquinone dyes using a CW He-Ne laser. / Pramodini, S.; Poornesh, P.

In: Laser Physics, Vol. 24, No. 5, 055402, 01.01.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Third-order nonlinear optical studies of anthraquinone dyes using a CW He-Ne laser

AU - Pramodini, S.

AU - Poornesh, P.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - We present investigations on the third-order optical nonlinearity and optical power limiting of anthraquinone dyes. Z-scan measurements were performed using a continuous wave He-Ne laser at 633 nm wavelength as an excitation source. The nonlinear refraction studies exhibited self-defocusing behavior of the dyes. The nonlinear absorption in the dyes was dominated by a reverse saturable absorption process. Self-diffraction ring patterns were observed due to the change in refractive index and thermal lensing. Increase of the electron donating ability of the substituents resulted in enhanced values of the nonlinear optical parameters, establishing the structure-property relationship. The optical limiting study revealed that the dyes possess a lower limiting threshold and clamping level which is very important for eye and sensor protection. Hence, the dyes investigated here emerge as promising candidates for future opto-electronic and photonic device applications such as optical power limiters.

AB - We present investigations on the third-order optical nonlinearity and optical power limiting of anthraquinone dyes. Z-scan measurements were performed using a continuous wave He-Ne laser at 633 nm wavelength as an excitation source. The nonlinear refraction studies exhibited self-defocusing behavior of the dyes. The nonlinear absorption in the dyes was dominated by a reverse saturable absorption process. Self-diffraction ring patterns were observed due to the change in refractive index and thermal lensing. Increase of the electron donating ability of the substituents resulted in enhanced values of the nonlinear optical parameters, establishing the structure-property relationship. The optical limiting study revealed that the dyes possess a lower limiting threshold and clamping level which is very important for eye and sensor protection. Hence, the dyes investigated here emerge as promising candidates for future opto-electronic and photonic device applications such as optical power limiters.

UR - http://www.scopus.com/inward/record.url?scp=84898943109&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898943109&partnerID=8YFLogxK

U2 - 10.1088/1054-660X/24/5/055402

DO - 10.1088/1054-660X/24/5/055402

M3 - Article

AN - SCOPUS:84898943109

VL - 24

JO - Laser Physics

JF - Laser Physics

SN - 1054-660X

IS - 5

M1 - 055402

ER -