D
D.S. Hum
Researcher at Stanford University
Publications - 19
Citations - 617
D.S. Hum is an academic researcher from Stanford University. The author has contributed to research in topics: Lithium tantalate & Lithium niobate. The author has an hindex of 10, co-authored 19 publications receiving 590 citations.
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Journal ArticleDOI
Ultrabroadband biphotons generated via chirped quasi-phase-matched optical parametric down-conversion.
Magued B. Nasr,Silvia Carrasco,Bahaa E. A. Saleh,Alexander V. Sergienko,Malvin C. Teich,Juan P. Torres,Lluis Torner,D.S. Hum,Martin M. Fejer +8 more
TL;DR: Using ultrabroadband biphotons generated via the process of spontaneous parametric down-conversion in quasi-phase-matched nonlinear gratings that have a linearly chirped wave vector, the narrowest Hong-Ou-Mandel dip is measured.
Journal ArticleDOI
Vapor-transport equilibrated near-stoichiometric lithium tantalate for frequency-conversion applications
Mordechai Katz,Roger K. Route,D.S. Hum,Krishnan R. Parameswaran,G. D. Miller,Martin M. Fejer +5 more
TL;DR: Near-stoichiometric lithium tantalate (SLT) crystals were produced from congruent lithium tantalates by a vapor-transport equilibration process because of the resultant increase in photoconductivity and reduction in photogalvanism, and showed no observable photorefractive damage.
Journal ArticleDOI
Amplitude modulation and apodization of quasi-phase-matched interactions
TL;DR: Several techniques to modulate the local amplitude of quasi-phase-matched (QPM) interactions in periodically poled lithium niobate waveguides are proposed and demonstrated and apodization is demonstrated by using each of these techniques.
Journal ArticleDOI
Optical properties and ferroelectric engineering of vapor-transport-equilibrated, near-stoichiometric lithium tantalate for frequency conversion
D.S. Hum,Roger K. Route,G. D. Miller,V. Kondilenko,A. Alexandrovski,Jie Huang,Karel E. Urbanek,Robert L. Byer,Martin M. Fejer +8 more
TL;DR: In this article, near-stoichiometric lithium tantalate (SLT) crystals were produced from congruent lithium tantalates by vapor transport equilibration, and several important optical and ferroelectric properties were measured.
Journal ArticleDOI
Room-Temperature Stable Generation of 19 Watts of Single-Frequency 532-nm Radiation in a Periodically Poled Lithium Tantalate Crystal
S. Sinha,D.S. Hum,Karel E. Urbanek,Yin-Wen Lee,Michel J. F. Digonnet,Martin M. Fejer,Robert L. Byer +6 more
TL;DR: In this paper, a system that produces 19 W of diffraction-limited radiation at 532 nm through single-pass frequency doubling of the output of a 1064 nm Yb3+-doped fiber MOPA in a periodically poled near-stoichiometric lithium tantalate (PPSLT) crystal was reported.