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Andrew LaForge

University of California, San Diego

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Featured researches published by Andrew LaForge.

Physical Review B | 2010

Optical characterization of Bi2Se3 in a magnetic field: Infrared evidence for magnetoelectric coupling in a topological insulator material

Andrew LaForge; Alex Frenzel; Brennan Pursley; Tao Lin; Xinfei Liu; Jing Shi; D. N. Basov

We present an infrared magneto-optical study of the highly thermoelectric narrow-gap semiconductor Bi

Physical Review Letters | 2010

Towards a two-dimensional superconducting state of La(2-x)Sr(x)CuO4 in a moderate external magnetic field.

A. A. Schafgans; Andrew LaForge; S. V. Dordevic; M. M. Qazilbash; Willie J. Padilla; Kenneth S. Burch; Zhiqiang Li; Seiki Komiya; Yoichi Ando; D. N. Basov

Advanced Optical Technologies | 2017

Light sources for high-volume manufacturing EUV lithography: technology, performance, and power scaling

Igor V. Fomenkov; David C. Brandt; Alex I. Ershov; Alexander Schafgans; Yezheng Tao; G. Vaschenko; Slava Rokitski; Michael Kats; Michael Vargas; Michael B. Purvis; Rob Rafac; Bruno La Fontaine; Silvia De Dea; Andrew LaForge; Jayson Stewart; Steven Chang; Matthew J. Graham; Daniel J. Riggs; Ted Taylor; Mathew Abraham; Daniel B. Brown

Physical Review B | 2011

Phonon splitting and anomalous enhancement of infrared-active modes in BaFe2As2

A. A. Schafgans; B. C. Pursley; Andrew LaForge; Athena S. Sefat; David Mandrus; D. N. Basov

International Conference on Extreme Ultraviolet Lithography 2018 | 2018

NXE:3400B EUV source performance in the field, readiness for HVM and power scaling beyond 250W

Igor V. Fomenkov; Michael A. Purvis; Alexander Schafgans; Yezheng Tao; Slava Rokitski; Jayson Stewart; Andrew LaForge; Alexander I. Ershov; Robert J. Rafac; Silvia De Dea; Chirag Rajyaguru; G. Vaschenko; Mathew Abraham; David C. Brandt; Daniel J. W. Brown

. Far-infrared and mid-infrared (IR) reflectance and transmission measurements have been performed in magnetic fields oriented both parallel and perpendicular to the trigonal

Extreme Ultraviolet (EUV) Lithography IX | 2018

Industrialization of a robust EUV source for high-volume manufacturing and power scaling beyond 250W

Igor V. Fomenkov; Alexander Schafgans; Yezheng Tao; Robert J. Rafac; Michael B. Purvis; Slava Rokitski; Michael Kats; Jayson Stewart; Andrew LaForge; Alex I. Ershov; Chirag Rajyaguru; G. Vaschenko; David C. Brandt; Daniel J. W. Brown; Mike Vargas; Spencer D. Rich; Melchior Mulder; Erik Buurman; Mathew Abraham

Physical Review Letters | 2012

Electronic Correlations and Unconventional Spectral Weight Transfer in the High-Temperature Pnictide BaFe2-xCoxAs2 Superconductor Using Infrared Spectroscopy

A. A. Schafgans; Seung-Jae Moon; Brennan Pursley; Andrew LaForge; M. M. Qazilbash; Athena S. Sefat; D. Mandrus; Kristjan Haule; Gabriel Kotliar; D. N. Basov

axis of this layered material, and supplemented with UV-visible ellipsometry to obtain the optical conductivity

Physical Review B | 2010

Possibility of magnetic-field-induced reconstruction of the Fermi surface in underdoped cuprates: Constraints from infrared magneto-optics

Andrew LaForge; A. A. Schafgans; S. V. Dordevic; Willie J. Padilla; Kenneth S. Burch; Zhiqiang Li; Kouji Segawa; Seiki Komiya; Yoichi Ando; J. M. Tranquada; D. N. Basov

\sigma_1(\omega)

Physical Review B | 2009

Magnetic field induced modification of superfluid density and interplane spectral weight in YBa 2 Cu 3 O y

Andrew LaForge; Willie J. Padilla; Kenneth S. Burch; Zhiqiang Li; A. A. Schafgans; Kouji Segawa; Yoichi Ando; D. N. Basov

. With lowering of temperature we observe narrowing of the Drude conductivity due to reduced quasiparticle scattering, as well as the increase in the absorption edge due to direct electronic transitions. Magnetic fields

Physical Review B | 2007