PSL at MNTL
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Article: Direct laser writing of volumetric gradient index lenses and waveguides.
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Article: Octahedral crystal growth during photochemical etching of a GaAs wafer.
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Article: Hydrogen is sensed by measuring the nanoscale deflection of a palladium coated cantilever.
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Article: Real-time monitoring of the etching dynamics of a GaAs wafer.
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Silicon on insulator (SOI) distributed Bragg reflector in a microring resonator (DBR-MRR).
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Article: Pd coated fiber tip with
nano-aperture at the center for hydrogen sensing
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Article: A quasi-continuous broadband anti-reflective coating
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Article: Lateral surface coated hydrogen sensor
Selected Publications
Journal Articles
- [J92] C. A. Richards, C. R. Ocier, J. Zhu, L. L. Goddard, and P. V. Braun, "Towards the Realization of Volumetric Integrated Optical Systems," (invited) Appl Phys Lett 119, 130503-1-10 (Oct 2021).
Link
- [J91] A. E. Hassanien, S. Link, Y. Yang, E. Chow, L. L. Goddard, and S. Gong, "Efficient and wideband acousto-optic modulation on thin-film lithium niobate for microwave-to-photonic conversion," (editor's pick) Photon Res 9, 1182-1190 (July 2021).
Link
- [J89] C. R. Ocier, C. A. Richards, D. A. Bacon-Brown, Q. Ding, R. Kumar, T. J. Garcia, J. Van de Groep, J.-H. Song, A. J. Cyphersmith, A. Rhode, A. N. Perry, A. J. Littlefield, J. Zhu, D. Xie, H. Gao, J. Messinger, M. L. Brongersma, K. C. Toussaint, L. L. Goddard, and P. V. Braun, "Direct laser writing of volumetric gradient index lenses and waveguides," Light Sci Appl 9, 196 (Dec 2020).
Link
- [J87] M. Bahadori, Y. Yang, A. E. Hassanien, L. L. Goddard, and S. Gong, "Ultra-efficient and fully isotropic monolithic microring modulators in a thin-film lithium niobate photonics platform," Opt. Express 28, 29644-29661 (Sep 2020).
Link
- [J85] J. Zhu*, A. Udupa, and L. L. Goddard*, "Visualizable detection of nanoscale objects using anti-symmetric excitation and non-resonance amplification," Nat. Commun. 11, 2754 (Jun 2020).
Link
- [J83] J. Zhu and L. L. Goddard, "All-dielectric concentration of electromagnetic fields at the nanoscale: the role of photonic nanojets," (review article), Nanoscale Adv. 1, 4615-4643 (Nov. 2019).
Link
- [J80] A. Udupa*, J. Zhu*, and L. L. Goddard, "Voxelized topology optimization for fabrication-compatible inverse design of 3D photonic devices," Opt. Express 27 (15), 21988-21998 (July 2019).
Link
- [J78] J. Zhu, Y. Liu, X. Yu, R. Zhou, J.-M. Jin, and L. L. Goddard, "Sensing Sub-10 nm Wide Perturbations in Background Nanopatterns Using Optical Pseudoelectrodynamics Microscopy (OPEM)," Nano Letters 19 (8), 5347-5355 (May 2019).
Link
- [J66] S. J. McKeown, X. Wang, X. Yu, and L. L. Goddard, "Realization of a Palladium Based Optomechanical Cantilever Hydrogen Sensor," Microsystems & Nanoengineering 3, 16087 (Mar 2017).
Link
- [J62] J. Zhu and L. L. Goddard, "Spatial control of photonic nanojets," Opt. Express 24, 30444-30464 (Dec 2016).
Link
- [J57] C. Edwards, A. Arbabi, B. Bhaduri, X. Wang, R. Ganti, P. Yunker, A. Yodh, G. Popescu, and L. L. Goddard, "Measuring the Nonuniform Evaporation Dynamics of Sprayed Sessile Microdroplets with Quantitative Phase Imaging," Langmuir 31 (40), 11020-11032 (Sep 2015).
Link
- [J55] S.M. Kamali, E. Arbabi, and L. L. Goddard, "A zeroth order modification of coupled mode theory for waveguide gratings," IEEE Photon. Technol. Lett. 27 (7) 790-793 (Apr 2015).
Link
- [J54] A. Arbabi, S. M. Kamali, E. Arbabi, B. G. Griffin, and L. L. Goddard, "Grating Integrated Single Mode Microring Laser," Opt. Express 23, 5335-5347 (Feb 2015).
Link
- [J53] E. Arbabi, S.M. Kamali, S. Arnold, and L. L. Goddard, "Hybrid whispering gallery mode/plasmonic chain ring resonators for biosensing," Appl. Phys. Lett. 105, 231107-1-4 (Dec 2014).
Link
- [J52] C. Edwards, S. J. McKeown, J. Zhou, G. Popescu, and L. L. Goddard, "In situ measurements of the axial expansion of palladium microdisks during hydrogen exposure using diffraction phase microscopy," Opt. Mater. Express 4 , 2559-2564 (Nov 2014).
Link
- [J47] S.-W. Hwang, G. Park, C. Edwards, E. Corbin, S.-K. Kang, H. Cheng, J.-K. Song, J.-H. Kim, S. Yu, J. Ng, J. E. Lee, J. Kim, C. Yee, B. Bhaduri, Y. Su, F. G. Omennetto, Y. Huang, R. Bashir, L. Goddard, G. Popescu, K.-M. Lee, and J. A. Rogers "Dissolution Chemistry and Biocompatibility of Single-Crystalline Silicon Nanomembranes and Associated Materials for Transient Electronics," ACS Nano 8 (6), 5843-5851 (Mar 2014).
Link
- [J45] B. Bhaduri, C. Edwards, H. Pham, R. Zhou, L. L. Goddard and G. Popescu, "Diffraction phase microscopy: principles and applications in materials and life sciences," (invited) Advances in Optics and Photonics 6, 57-119 (Mar 2014).
Link
- [J44] C. Edwards, H. Pham, T. Nguyen, B. Bhaduri, M. Mir, G. Popescu, and L. L. Goddard, "Effects of Spatial Coherence in Diffraction Phase Microscopy," Opt. Express 22, 5133-5146 (Feb 2014).
Link
- [J43] M.-F. Xue, Y. M. Kang, A. Arbabi, S. J. McKeown, L. L. Goddard, and J.-M. Jin, "Fast and Accurate Finite Element Analysis of Large-Scale Three-Dimensional Photonic Devices with a Robust Domain Decomposition Method," Opt. Express 22, 4437-4452 (Feb 2014).
Link
- [J41] T. Kim, R. Zhou, M. Mir, S. D. Babacan, P. S. Carney, L. L. Goddard, and G. Popescu, "White-light diffraction tomography of unlabelled live cells," Nature Photonics 8, 256-263 (Jan 2014).
Link
- [J39] A. Arbabi and L. L. Goddard, "Measurements of the refractive indices and thermo-optic coefficients of Si3N4 and SiOx using microring resonances," Optics Letters 38 (19), 3878-3881 (Oct 2013).
Link
- [J37] R. Zhou, C. Edwards, A. Arbabi, G. Popescu, and L. L. Goddard, "Detecting 20 nm Defects in Large Area Nanopatterns using Optical Interferometric Microscopy," Nano Letters 13 (8), 3716-3721 (Aug 2013).
Link
- [J35] C. Edwards, K. Wang, R. Zhou, B. Bhaduri, G. Popescu, and L. Goddard, "Digital projection photochemical etching defines gray-scale features," Opt. Express 21, 13547-13554 (Jun 2013).
Link
- [J32] S. McKeown and L. Goddard, "Hydrogen Detection using Polarization Diversity via a Sub-wavelength Fiber Aperture," IEEE Photonics Journal 4, pp 1752-1761 (Oct 2012).
Link
- [J31] A. Arbabi and L. Goddard, "Dynamics of Self-heating in Microring Resonators," IEEE Photonics Journal 4, pp. 1702-1711 (Oct 2012).
Link
- [J30] C. Edwards, A. Arbabi, G. Popescu, and L. Goddard, "Optically monitoring and controlling nanoscale topography during semiconductor etching," Light Sci Appl 1, e30 (Sep 2012).
Link
- [J29] A. Arbabi and L. Goddard, "Integrated Optical Resonators: Progress in 2011," (invited) IEEE Photonics Journal 4, (2), pp. 574-577 (Apr 2012).
Link
- [J28] B. Griffin, A. Arbabi, A. Kasten, K. Choquette, and L. Goddard, "Hydrogen Detection Using a Functionalized Photonic Crystal Vertical Cavity Laser," (invited) IEEE J. Quantum Electronics Special Issue 48, pp. 160-168 (Feb 2012).
Link
- [J27] A. Arbabi, Y. M. Kang, C.-Y. Lu, E. Chow, and L. Goddard, "Realization of a narrowband single wavelength microring mirror," Appl. Phys. Lett. 99, pp. 091105-1-3 (Aug 2011).
Link
- [J26] A. Arbabi, Y. M. Kang, and L. Goddard, "Cylindrical coordinates coupled mode theory," IEEE J. Quantum Electron. 46, pp. 1769-1774 (Dec 2010). Link
- [J25] Y. M. Kang, A. Arbabi, and L. Goddard, "Engineering the spectral reflectance of microring resonators with integrated reflective elements," Opt. Express. 18, pp. 16813-16825 (Jul 2010). Link
- [J24] Y. M. Kang, A. Arbabi, and L. Goddard, "A microring resonator with an integrated Bragg grating: a compact replacement for a sampled grating distributed Bragg reflector," Opt. Quantum Electron. 41, pp. 689-697, (Apr 2010). Link
- [J23] W. Qiu, Y. M. Kang, and L. Goddard, "Quasi-continuous Refractive Index Tailoring of SiNx and SiOxNy for Broadband Anti-reflective Coatings," Appl. Phys. Lett. 96, pp. 141116-1-3 (Apr 2010). Link
- [J20] M. Pocha, L. Goddard, T. Bond, R. Nikolic, S. Vernon, J. Kallman, and E. Behymer, "Electrical and optical gain lever effects in InGaAs/GaAs double quantum well lasers," IEEE J. Quantum Electron. 43, (10), pp. 860-868 (Oct 2007). Link
- [J11] L. Goddard, S. Bank, M. Wistey, H. Yuen, Z. Rao, and J.S. Harris Jr., "Recombination, gain, band structure, efficiency, and reliability of 1.5-µm GaInNAsSb/GaAs lasers," J. Appl. Phys. 97, pp. 083101-1-15 (Apr 2005). Link
- [J8] S. Bank, M. Wistey, L. Goddard, H. Yuen, V. Lordi, and J.S. Harris Jr., "Low-Threshold Continuous-Wave 1.5-µm GaInNAsSb Lasers Grown on GaAs," IEEE J. Quantum Electron. 40 (6), pp. 656-664 (Jun 2004). Link
- [J3] L. Goddard, M. Kneissl, D. Bour, and N. Johnson, "Gain characteristic of continuous-wave InGaN multiple quantum well laser diodes during life testing," J. Appl. Phys. 88 (7), pp. 3820-3823 (Oct 2000). Link
PhD Theses
- L. Goddard, "Characterization and Modeling of the Intrinsic Properties of 1.5µm GaInNAsSb/GaAs Lasers," PDF (Mar 2005).
Articles in Conference Proceedings
- [C143] A. Udupa and L. L. Goddard, "Pre-College Students Learn Cross-Cutting STEM Concepts by Building an Optical Imaging Projector," in Education and Training in Optics & Photonics Conference (ETOP), paper W4B.7 (Sept 2021). Link
- [C132] A. Simpson, L. Hebert, L. Baber, M. Pollock, W. Trent, and L. Goddard, "Impacting Teacher and Counselor Practices as They Support Traditionally Underrepresented Students to Pursue STEM Majors and Careers," IEEE Frontiers in Education Conference (FIE), Uppsala, Sweden, pp. 1-7 (Oct 202). Link
- [C129] A. Udupa, J. Carlson, J. Dallesasse, and L. L. Goddard, "Coupling between heterogeneously integrated edge-emitting lasers and passive photonic waveguides," TechCon 2019. [Top 10 Presenter Award]
- [C116] J. Zhu, S. Purandare, and L. L. Goddard, "Enhanced Parallel Bridge Defect Inspection Using a Metalens Assisted Off-Focus Scanning Imaging" Conference on Lasers and Electro Optics (CLEO), San Jose, CA, paper ATh4B.6 (May 2017). [Finalist for the Tingye Li Innovation Award]
- [C91] R. Zhou, C. Edwards, C. Bryniarski, G. Popescu, and L. L. Goddard, "9nm node wafer defect inspection using three-dimensional scanning: a 405nm diode laser, and a broadband source," SPIE Advanced Lithography, paper 942416-1-7 (Feb 2015).
- [C68] R. Zhou, G. Popescu, and L. Goddard, "9nm node wafer defect inspection using visible light," SPIE Advanced Lithography Conference, San Jose, CA, paper 9050-41 (Feb 2014).
- [C67] A. Arbabi and L. L. Goddard, "Grating Assisted Mode Coupling in Microring Resonators," (invited) IEEE Photonics Conference, Bellevue WA, paper WD2.1 (Sep 2013).
- [C66] A. Arbabi, B. G. Griffin, and L. L. Goddard, "An Active-Passive Monolithic Integration Platform with Low Loss Passive Section," IEEE Photonics Conference, Bellevue WA, paper MF3.2 (Sep 2013).
- [C60] A. Arbabi and L. Goddard, "Single Wavelength Microring Laser," Conference on Lasers and Electro Optics (CLEO), San Jose CA, paper CM3F.2 (Jun 2013).
- [C59] R. Zhou, L. Goddard, and G. Popescu, "Finding defects in a 22 nm node wafer with visible light," Conference on Lasers and Electro Optics (CLEO), San Jose CA, paper AF1J.2 (Jun 2013).
- [C58] R. Zhou, L. Goddard, and G. Popescu, "22nm node wafer inspection using diffraction phase microcopy and image post processing," Advanced Lithography Conference, Proc. SPIE 8681, pp. 86810G-1-7 (Apr 2013).
- [C57] R. Zhou, C. Edwards, G. Popescu, and L. Goddard, "Diffraction Phase Microscopy for Wafer Inspection," IEEE Photonics Conference (IPC), Burlingame CA, pp. 644-645 (Sep 2012).
- [C48] B. Griffin, A. Arbabi, and L. Goddard, "Mode suppression in metal filled photonic crystal vertical cavity lasers," (invited), 2012 SPIE Photonics West Conference (PW), San Francisco, CA, Session 8276-22 (Jan 2012).
- [C44] L. Goddard, "Research Activities of the Photonic Systems Laboratory," (invited by the US National Academy of Sciences) Indonesian-American Kavli Frontiers of Science symposium, Bogor, Indonesia (Jul 2011).
- [C39] S. McKeown, B. Griffin, and L. Goddard, "Fiber Optic Hydrogen Sensor Utilizing Facet-Etched Metal Nano-apertures," in Proc. IEEE Photonics Annual Meeting, Denver, CO (Nov 2010). Semifinalist for Best Student Paper Award.
- [C37] A. Arbabi, Y. M. Kang, and L. Goddard, "Analysis and Design of a Microring Inline Single Wavelength Reflector," in Proc. Frontiers in Optics (FiO) Conf., Rochester, NY (Oct 2010).
- [C35] Y. M. Kang and L. Goddard, "Semi-analytical modeling of microring resonators with distributed Bragg reflectors," 9th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Gwangju, Republic of Korea, pp. 123-124 (Sep 2009).
- [C33] L. Goddard, K. Wong, A. Garg, E. Behymer, G. Cole, and T. Bond, "Measurements of the complex refractive index of Pd and Pt films in air and upon adsorption of H2 gas," IEEE LEOS Annual Meeting, Newport Beach, CA, Session WS2 (Nov 2008).
- [C28] L. Goddard, J. Kallman, and T. Bond, "Rapidly reconfigurable all-optical universal logic gates," (invited) Proc. SPIE 6368, pp. 63680H-1-13 (Oct 2006).
- [C20] L. Goddard, S. Bank, M. Wistey, H. Yuen, H. Bae, and J.S. Harris, Jr., "High power 1.5µm GaInNAsSb/GaAs lasers," (invited) IEEE LEOS Workshop on Semiconductor Lasers, Baltimore, MD (May 2005).
- [C16] L. Goddard, S. Bank, M. Wistey, H. Yuen, and J.S. Harris Jr., "High performance GaInNAsSb/GaAs lasers at 1.5µm," (invited) Proc. SPIE 5738, pp. 180-191 (Apr 2005).
- [C15] L. Goddard, S. Bank, M. Wistey, H. Yuen, H. Bae, and J.S. Harris Jr., "Reduced monomolecular recombination in GaInNAsSb/GaAs lasers at 1.5µm," 2004 Lasers and Electro-Optics Society Conference (LEOS), Rio Mar, PR, Session MO6 (Nov 2004).
Issued Patents
- [P15] L. L. Goddard, K. C. Toussaint, P. V. Braun, J. Zhu, D. Bacon-Brown, C. H. Ocier, Q. Ding, and C. Richards, "Volumetric Optical Integrated Circuits," US patent #11,237,343 B2 (filed Dec. 2019, issued Feb. 2022).
- [P14] G. L. Liu, L. Goddard, A. Ameen, L. P. Hackett, and F. Dar, "Plasmon Resonance Imaging Apparatus Having Metal-Insulator-Metal Nanocups," US patent #11,060,973 B2 (filed 2018, issued June 2021).
- [P13] L. Goddard, K. Wang, C. Edwards, L. Edwards, X. Yu, G. Liu, and T. Koker, "Spectrally and temporally engineered processing using photoelectrochemistry," US Patent #10,734,237 B2 (filed May 2018, issued Aug. 2020).
- [P12] L. Goddard, K. Wang, C. Edwards, L. Edwards, X. Yu, G. Liu, and T. Koker, "Spectrally and temporally engineered processing using photoelectrochemistry," US Patent #10,115,599 B2 (filed Jan 2016, issued Oct. 2019).
- [P11] L. L. Goddard and J. Zhu, "Spatial control of the optical focusing properties of photonic nanojets," US Patent #10,416,383 (filed Jul 2018, issued Sep 2019).
- [P10] T. Bond, G. Cole, and L. Goddard, "Resonant Optical Transducers for in-situ Gas Detection," US Patent #9,880,096 B2 (filed Oct 2015, issued Jan 2018).
- [P9] G. Popescu, L. Goddard, P. S. Carney, T. Kim, R. Zhou, M. Mir, and S. Babacan, "White Light Diffraction Tomography of Unlabeled Live Cells," US Patent #9,404,857 B2 (filed Jun 2014, issued Aug 2016).
- [P8] T. Bond, G. Cole, and L. Goddard, "Resonant Optical Transducers for in-situ Gas Detection," US Patent #9,377,399 B2 (filed Nov 2012, issued Jun 2016).
- [P7] G. Popescu, L. Goddard, C. Edwards, and A. Arbabi, "Optically Monitoring and Controlling Nanoscale Topography," US Patent #9,255,791 (filed Sep 2012, issued Feb 2016).
- [P6] L. Goddard, Y. M. Kang, and A. Arbabi, "Distributed reflector in a microring resonator," US patent #8,670,476 (filed Sep 2011, issued Mar 2014).
- [P5] W. Qiu and L. Goddard, "Method of Plasma Etching Ga-Based Compound Semiconductors," (low rate etching) US Patent #8,343,878 (filed Dec 2009, issued Jan 2013).
- [P4] W. Qiu and L. Goddard, "Method of Plasma Etching Ga-Based Compound Semiconductors," (high rate etching) US Patent #8,338,308 (filed Dec 2009, issued Dec 2012).
- [P3] T. Bond, L. Goddard, and G. Cole, "Tunable Photonic Cavities for in-situ Spectroscopic Trace Gas Detection," US Patent #8,309,929 (filed Mar 2009, issued Nov 2012).
- [P2] T. Bond, G. Cole, L. Goddard, and J. Kallman, "Low Loss, High and Low Index Contrast Waveguides in Semiconductors," US Patent #7,995,892 (filed Dec 2008, issued Aug 2011).
- [P1] L. Goddard, T. Bond, and J. Kallman, "Rapidly Reconfigurable All-Optical Universal Logic Gates," US Patent #7,791,781 (filed May 2007, issued Sep 2010).