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Student Lecture Oct 28 - KaiKai Liu and Jake Ewing

10/23/2021

 
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Join us at Henley Hall 1010 on 10/28 at 1pm! Free Pizza Provided! 

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Jake Ewing
DenBaars Group
Materials Dept, UCSB
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MicroLEDs for next-generation display technologies

Micro light-emitting diodes (µLEDs) are promising candidate many next-generation displays technologies including television screens and augmented reality (AR) glasses. Advantages of µLEDs include high efficiencies, self-emissivity, high brightness and long operating lifetimes. Current research focuses on improving growth methods and processing of µLEDs to achieve size-independent efficiency across the entire color spectrum. This talk will provide an overview of the progress of µLED technology as well as current research being conducted at UCSB

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KaiKai Liu
Blumenthal Group
ECE Dept, UCSB

Photonic integrated coil resonator for laser stabilization with ultra-low thermodynamic noise limit

Stable lasers and reference cavities provide the frequency standards and precision measurement references and are an essential component in a wide range of applications including coherent communications, atomic and optical clocks, and quantum communications and computation. On-chip laser frequency reference cavities have been drawing attention and interests, as on-chip optical ultra-low loss waveguide resonators are able to achieve Q factors above 100 Million.
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In this talk, I will introduce the landscape of table-top stable lasers and bulk optical reference cavities and move on to our recent progress towards on-chip ultra-high Q reference resonator and the resonator design and engineering to mitigate the thermodynamically driven noise. We demonstrate the stabilized laser reaches the resonator intrinsic thermorefractive noise limit.

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    Thorlabs designs and produces a variety of optomechanical and optoelectronic components in 15 facilities around the globe. Thorlabs seeks to listen and serve its customers with over 20,000 products available. ​
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    Founded in 2018, Nexus Photonics has developed integrated photonics ready to scale. Smaller, lighter and faster, their platform outperforms industry benchmarks, and operates in an ultra-broadband wavelength range from ultraviolet to infrared to support a wide breadth of practical applications.

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