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Title: Characterizations of two-photon absorption process induced by defects in aluminum nitride using Z-scan method

Journal Article · · Semiconductor Science and Technology

Abstract In this work, we reported two-photon absorption (TPA) measurements for aluminum vacancies in Aluminum nitride single crystals. We measured the linear transmission and identified the defect levels. Using the Z-scan method, we measured the TPA coefficients of the transitions between defect levels from 380 nm to 735 nm. The transition occurs between the aluminum vacancies defect levels. Furthermore, the power dependence shows good linear fitting, confirming the TPA mechanism. These results will be helpful for the design and fabrication of ultra-low loss waveguides and integrated photonics in the ultraviolet spectral range.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0021230
OSTI ID:
2369699
Alternate ID(s):
OSTI ID: 2352765
Journal Information:
Semiconductor Science and Technology, Journal Name: Semiconductor Science and Technology Vol. 39 Journal Issue: 7; ISSN 0268-1242
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (30)

Aluminium nitride integrated photonics: a review journal June 2021
Aluminum nitride photonic integrated circuits: from piezo-optomechanics to nonlinear optics journal March 2023
Vacuum-Ultraviolet Photovoltaic Detector with Improved Response Speed and Responsivity via Heating Annihilation Trap State Mechanism journal August 2018
Performance Improvement of AlN Crystal Quality Grown on Patterned Si(111) Substrate for Deep UV-LED Applications journal November 2016
Ultraviolet semiconductor laser diodes on bulk AlN journal June 2007
Pseudomorphic growth of thick n-type AlxGa1−xN layers on low-defect-density bulk AlN substrates for UV LED applications journal May 2009
Supercontinuum Generation in High Order Waveguide Mode with near-Visible Pumping Using Aluminum Nitride Waveguides journal April 2021
Impact of two-photon absorption on self-phase modulation in silicon waveguides journal January 2007
Atomic Defect Induced Saturable Absorption of Hexagonal Boron Nitride in Near Infrared Band for Ultrafast Lasing Applications journal November 2021
Identification of the V Al -O N defect complex in AlN single crystals journal August 2011
Dispersion of bound electron nonlinear refraction in solids journal June 1991
Second harmonic generation in phase matched aluminum nitride waveguides and micro-ring resonators journal May 2012
Highly Asymmetric Optical Properties of β-Ga 2 O 3 as Probed by Linear and Nonlinear Optical Excitation Spectroscopy journal November 2020
Origination and evolution of point defects in AlN film annealed at high temperature journal July 2021
Preparation of a Freestanding AlN Substrate from a Thick AlN Layer Grown by Hydride Vapor Phase Epitaxy on a Bulk AlN Substrate Prepared by Physical Vapor Transport journal May 2012
Bulk AlN growth by physical vapour transport journal June 2014
Surface damage of thin AlN films with increased oxygen content by nanosecond and femtosecond laser pulses conference October 2009
Novel high-pressure phases of AlN: A first-principles study journal May 2016
Femtosecond and nanosecond nonlinear optical properties of alkyl phthalocyanines studied using Z-scan technique journal October 2007
Growth of AlN single crystalline boules journal September 2010
The growth and optical properties of large, high-quality AlN single crystals journal November 2004
Highly Nondegenerate Two-Photon Absorption in Silicon Wire Waveguides journal August 2018
A first-principles study of novel cubic AlN phases journal July 2019
Origins of optical absorption and emission lines in AlN journal September 2014
In-plane enhanced epitaxy for step-flow AlN yielding a high-performance vacuum-ultraviolet photovoltaic detector journal January 2020
Characterizations of the nonlinear optical properties for (010) and (2¯01) beta-phase gallium oxide journal January 2018
Anisotropy of two-photon absorption and free-carrier effect in nonpolar GaN journal March 2015
Characterizations of nonlinear optical properties on GaN crystals in polar, nonpolar, and semipolar orientations journal May 2017
Review—Status and Challenges in Hetero-epitaxial Growth Approach for Large Diameter AlN Single Crystalline Substrates journal February 2021
Linear optical effects in Z-scan measurements of thin films journal April 1998