D
David J. Hagan
Researcher at University of Central Florida
Publications - 425
Citations - 22340
David J. Hagan is an academic researcher from University of Central Florida. The author has contributed to research in topics: Two-photon absorption & Absorption (electromagnetic radiation). The author has an hindex of 61, co-authored 420 publications receiving 20520 citations. Previous affiliations of David J. Hagan include Benemérita Universidad Autónoma de Puebla & University of North Texas.
Papers
More filters
Journal ArticleDOI
Sensitive measurement of optical nonlinearities using a single beam
TL;DR: In this paper, a single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials is reported, including a comprehensive theoretical analysis.
Journal ArticleDOI
Dispersion of bound electron nonlinear refraction in solids
TL;DR: In this article, a two-hand model is used to calculate the scaling and spectrum of the nonlinear absorption of semiconductors and wide-gap optical solids, and the bound electronic nonlinear refractive index n/sub 2/ is obtained using a Kramers-Kronig transformation.
Journal ArticleDOI
Self-focusing and self-defocusing by cascaded second-order effects in KTP.
Richard DeSalvo,David J. Hagan,Mansoor Sheik-Bahae,George I. Stegeman,E. W. Van Stryland,H. Vanherzeele +5 more
TL;DR: This work monitors the induced phase change produced by a cascaded chi((2)):chi((2)) process in KTP near the phase-matching angle on a picosecond 1.06-microm-wavelength beam using the Z-scan technique and predicts the maximum small-signal effective nonlinear refractive index.
Journal ArticleDOI
Determination of bound-electronic and free-carrier nonlinearities in ZnSe, GaAs, CdTe, and ZnTe
Ali A. Said,Mansoor Sheik-Bahae,David J. Hagan,Tai-Huei Wei,Jun Wang,J. Young,E. W. Van Stryland +6 more
TL;DR: In this article, the authors extend the application of the Z-scan experimental technique to determine free-carrier nonlinearities in the presence of bound electronic refraction and two-photon absorption.
Journal ArticleDOI
χ(2) cascading phenomena and their applications to all-optical signal processing, mode-locking, pulse compression and solitons
TL;DR: Cascading is the process by which the exchange of energy between optical beams interacting via second order nonlinearities leads to various effects such as nonlinear phase shifts, the generation of new beams, all-optical transistor action, the formation of soliton-like (solitary) waves, etc as mentioned in this paper.