Yu-Hwa Lo | |
---|---|
Nationality | Taiwanese |
Occupation(s) | Physicist, engineer, academic and researcher |
Awards | Fellow, Optical Society of America Fellow, IEEE Fellow, AAIA Fellow, NAI |
Academic background | |
Alma mater | National Taiwan University University of California, Berkeley |
Academic work | |
Institutions | University of California at San Diego (UCSD) |
Yu-Hwa Lo is a physicist,engineer,academic and researcher. He is a Professor of Electrical and Computer Engineering at University of California at San Diego (UCSD). [1]
Lo has published over 500 articles and owns 55 patents. His research interests include biophotonics,nanophotonics,single photon detectors,condensed matter physics for advanced device concept,microfluidics,and biomedical devices and instruments. [2]
Lo is the Founding Director and Executive Committee Member of San Diego Nanotechnology Infrastructure (SDNI) [3] and is the site director for NSF National Nanotechnology Coordinated Infrastructure. [4]
Lo received his bachelor's degree in electrical engineering from the National Taiwan University in 1981. At the University of California,Berkeley,he completed his master's degree and Ph.D. in electrical engineering in 1986 and 1987 respectively. [5]
After working at Bellcore from 1987 to 1990 as a member of technical staff,Lo became an assistant professor at Cornell University in 1991 for the School of Electrical Engineering where later,he was appointed associate professor in 1996. At the University of California at San Diego (UCSD) since 1999,he is a professor in the Department of Electrical and Computer Engineering, [6] where he was awarded the Distinguished William S. C. Chang Endowed Chair in Electrical and Computer Engineering. [7] He has been a visiting professor at the Bioengineering Department,National Chia-Tung University,Taiwan since 2012.
Among his non-academic positions,Lo has held the position of the CTO and board of director of Nova Crystals,the Director of San Diego Nanotechnology Infrastructure (SDNI),which is a Center for National Nanotechnology Coordinated Infrastructure (NNCI), [8] and the co-founder and advisor of NanoCellect Biomedical,a biotech company. [9]
Lo's research is focused on two areas,the first one being on condensed matter photonics and optoelectronic materials and devices with an emphasis on devices and novel physical mechanisms for ultrasensitive light detection with applications in imaging,LiDAR,and medical and bioimaging. [10] The second area of focus is microfluidics,lab-on-a-chip devices,and biomedical and biophotonic devices for single cell analysis,diagnosis,and drug discovery.
Lo invented the direct wafer fusion (i.e. bonding of two semiconductors without an intermediate layer) process with Raj Bhat. The process was licensed to industry to produce high brightness light emitting diodes (LEDs),which commenced the transition of traffic lights (red and ember colors) and automobile lighting from incandescent light to solid state lighting. [11] He formulated and demonstrated the concept of compliant substrate to enable growth of epitaxial layers beyond the Matthew and Blakeslee's critical thickness limit. [12]
Along with his group,Lo invented and theorized the self-quenching and self-recovering mechanisms for semiconductor detectors capable of detecting single photons. He discovered the effect of cycling excitation process (CEP) in disordered materials and invented photodetectors with intrinsic carrier multiplication gain based on this mechanism. The devices are used for LiDAR and low light imaging. [13]
Lo's group invented the first bench-top microfluidic fluorescence-activated-cell-sorter (FACS),which is the most compact system of its kind. [14]
Lo's lab furthered the development by integrating the imaging capability to the system and demonstrated one of the world's first image-guided FACS systems. Another major advancement his lab has achieved is to produce the world's first 3D imaging flow cytometers capable of producing 1000 high quality 3D cell images per second,and incorporate artificial intelligence into the above system for cell analysis,classification,and cell type discovery. [15]
A charge-coupled device (CCD) is an integrated circuit containing an array of linked,or coupled,capacitors. Under the control of an external circuit,each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a major technology used in digital imaging.
Photonics is a branch of optics that involves the application of generation,detection,and manipulation of light in the form of photons through emission,transmission,modulation,signal processing,switching,amplification,and sensing. Photonics is closely related to quantum electronics,where quantum electronics deals with the theoretical part of it while photonics deal with its engineering applications. Though covering all light's technical applications over the whole spectrum,most photonic applications are in the range of visible and near-infrared light. The term photonics developed as an outgrowth of the first practical semiconductor light emitters invented in the early 1960s and optical fibers developed in the 1970s.
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Photodetectors,also called photosensors,are sensors of light or other electromagnetic radiation. There are a wide variety of photodetectors which may be classified by mechanism of detection,such as photoelectric or photochemical effects,or by various performance metrics,such as spectral response. Semiconductor-based photodetectors typically use a p–n junction that converts photons into charge. The absorbed photons make electron–hole pairs in the depletion region. Photodiodes and photo transistors are a few examples of photo detectors. Solar cells convert some of the light energy absorbed into electrical energy.
Indium gallium arsenide (InGaAs) is a ternary alloy of indium arsenide (InAs) and gallium arsenide (GaAs). Indium and gallium are group III elements of the periodic table while arsenic is a group V element. Alloys made of these chemical groups are referred to as "III-V" compounds. InGaAs has properties intermediate between those of GaAs and InAs. InGaAs is a room-temperature semiconductor with applications in electronics and photonics.
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The following outline is provided as an overview of and topical guide to chemical engineering:
Karen L. Kavanagh is a professor of physics at Simon Fraser University in Burnaby,British Columbia,Canada,where she heads the Kavanagh Lab,a research lab working on semiconductor nanoscience.
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Luke Pyungse Lee is the Arnold and Barbara Silverman Distinguished Professor of Bioengineering,Biophysics,Electrical Engineering and Computer Science,at University of California,Berkeley. He is founding director of the Biomedical Institute for Global Health Research and Technology (BIGHEART) at the National University of Singapore.
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Brian T. Cunningham is an American engineer,researcher and academic. He is a Donald Biggar Willett Professor of Engineering at University of Illinois at Urbana-Champaign. He is a professor of Electrical and Computer Engineering,and a professor of bioengineering.
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