Photonics Society at UCSB
  • Home
  • Members
    • Alumni
  • Calendar
  • Events
    • Lectures >
      • Industry Perspective Lectures
      • IPS Lectures
      • Student Lectures
      • Alumni Lectures
      • OSA Lectures
    • Outreach Events
    • Women in Photonics Week >
      • WIPW 2019
      • WiPW 2018
      • WiPW 2017
      • WiPW 2016
    • Light Science Workshop >
      • Light Science 2018
      • Light Science 2017
    • Day of Light >
      • Day of Light 2019
      • 2015 Symposium
    • Banquet >
      • Banquet 2022
      • Banquet 2019
      • Banquet 2016
      • Banquet 2014
    • QIS >
      • QIS2022
      • QIS2021
    • Social Events
    • Sign-up for Student Talks
  • Education
    • Education Home
    • After-School Science >
      • Light-Pipes: Controlling Light
      • DIY Holograms
      • Color Mixing
      • LaserComm
      • Fluorescence
    • Classes
    • Outreach Events
    • Outreach Kits 2020
  • Home
  • Members
    • Alumni
  • Calendar
  • Events
    • Lectures >
      • Industry Perspective Lectures
      • IPS Lectures
      • Student Lectures
      • Alumni Lectures
      • OSA Lectures
    • Outreach Events
    • Women in Photonics Week >
      • WIPW 2019
      • WiPW 2018
      • WiPW 2017
      • WiPW 2016
    • Light Science Workshop >
      • Light Science 2018
      • Light Science 2017
    • Day of Light >
      • Day of Light 2019
      • 2015 Symposium
    • Banquet >
      • Banquet 2022
      • Banquet 2019
      • Banquet 2016
      • Banquet 2014
    • QIS >
      • QIS2022
      • QIS2021
    • Social Events
    • Sign-up for Student Talks
  • Education
    • Education Home
    • After-School Science >
      • Light-Pipes: Controlling Light
      • DIY Holograms
      • Color Mixing
      • LaserComm
      • Fluorescence
    • Classes
    • Outreach Events
    • Outreach Kits 2020
Picture
Picture
Picture
Picture

Santa Barbara Photonics Banquet

5/24/2019

 
The 3rd Santa Barbara Photonics Banquet took place on:
Tuesday June 4th, 6pm at Corwin Pavilion @ UCSB

See the event page for more info:

SB Photonics Banquet 2019

Student Lecture Series: May 31st 2019

5/22/2019

 
Picture

Picture
Kristina Davis
Mazin group
Physics Dept, UCSB

Coherent Differential Imaging Techniques for MKID Detectors

The field of direct imaging of exoplanetary systems allows astronomers to gain both photometric and spectroscopic analysis of these exoplanetary systems. I will present a technique I call Heterodyne Optical Phase Probe (HOPP) that measures the phase change of an incoming heterodyne signal incident on the kinetic inductance detector array as the deformable mirror is actuated. By measuring the phase response, we can improve our models of the DM surface shape under a variety of optical conditions, and have a better calibration of how to scale the offset positions we feed the DM when performing speckle nulling.

Picture
Chris Zollner
Nakamura group
Materials Dept, UCSB

MOCVD growth of AlN on SiC substrates for deep-UV optoelectronics: an inside the box approach

MOCVD growth of high-quality GaN on sapphire substrates is vital to today's blue LED industry, but the same methods cannot be applied to AlN/sapphire which is needed for deep-UV optoelectronics. We have developed a novel approach to MOCVD growth of AlN on SiC with quality comparable to industrial GaN/sapphire, and demonstrated UV-LEDs emitting at 280nm.
Friday, May 31st | 12:00 pm | Elings 1605

Fluency Lighting: The Path of a Startup

5/13/2019

 
Picture
Picture

Picture
​
​Dr. Kristin Denault
Fluency Founder & CEO
Picture

Friday, May 17th | 12:00 pm | ESB 2001
Fluency Lighting Technologies is an early stage start-up company developing technology out of UC Santa Barbara. At Fluency, we are creating next-generation bright and narrow-beam light sources for highly efficient illumination, using laser technology and materials design. Our focus is the development of low-cost, optical platforms that convert laser diode emission into high-quality white light in various light levels, beam angles, and color temperatures, designed for customer-driven metrics, in applications where energy-saving LED technology is not used because of the limited light output from an LED.
Refreshments will be provided
Picture
Dr. Denault begins her talk about the work done in lighting technology at her company, Fluency.

Fast, Widely Tunable MEMS-VCSELs for Imaging, Metrology, and Spectroscopy

5/13/2019

 
Picture
Picture

Picture



​Dr. Vijaysekhar Jayaraman
Founder
​Praevium Research
Picture

Thursday, May 16th | 12:00 pm | Elings 1601
In recent years, widely tunable micro-electro-mechanical systems vertical cavity surface-emitting lasers (MEMS-VCSELs) have found commercial application in swept source optical coherence tomography medical imaging and also show considerable promise in metrology and spectroscopy. These devices exhibit fractional tuning ranges of >11% of the center wavelength, wavelength tuning repetition rates over full tuning range of >1MHz, and clean single-mode operation. These properties, in conjunction with small size and wafer scale fabrication and testing, promise an economical optical source that can impact sensing applications from the visible to the mid-infrared.
Picture
Picture
I. Grulkowski, et al. Biomedical Optics Express 2012
Refreshments will be provided
Picture
Dr. Jayaraman begins his talk about different applications for MEMS-Tunable VCSELs

History and Key Development in GaN Based Photonics and Electronics at UCSB

5/13/2019

 
Picture

Picture


​Dr. Steven DenBaars
Mitsubishi Distinguished Professor 
Materials Distinguished Professor
Electrical & Computer Engineering

Wednesday, May 15th | 12:00 pm | ESB 1001
In this talk I will highlight the history of GaN research at UCSB, and some of the key breakthroughs and technologies developed by the faculty, students and staff.  Starting with one MOCVD system, UCSB Faculty were the first University world-wide to achieve a blue GaN Laser in 1996. In 2000, Prof. Shuji Nakamura joined the Faculty and along with Prof. DenBaars, Prof. Speck and Prof. Mishra co-founded the Solid State Lighting and Energy Electronics Center (SSLEEC), which has now become one of the largest academic GaN based Photonic and Electronic research centers in the world. SSLEEC has played a key role in developing numerous breakthroughs, some of which have led to the realization of high-efficiency Solid-State Lighting, which the Dept. of Energy estimates will save the equivalent annual electrical output of about fifty 1,000-megawatt power plants. 

​Looking into the future we see next generation GaN Laser Diode based solid state lighting as impacting high brightness specialty lighting. We have demonstrated laser based white lighting with luminous efficacies of 87 lm/watt, and over 1000 lumens from a single emitter.  In addition, tunnel junctions have been employed to achieve vertical cavity surface emitting lasers (VCSELs) in the blue spectral region. Blue and green lasers and Micro-LEDs based on GaN materials are expected to enable new full color projections displays for cinema, office and augmented reality (AR) applications.

Refreshments will be provided

Picture
Dr. DenBaars begins his talk about GaN photonics and electronics developments made at UCSB
Picture
Dr. DenBaars' talk filled the room with lots of interested students.

The Perils of Conventional Thinking

5/8/2019

 
Picture

Picture
Dr. Chris Cole

Finisar
Picture

Thursday, May 9th | 12:00 pm | Elings 1601
Chris will discuss next-generation optical interfaces for large scale datacenters, including Intensity Modulated Direct Detection and Coherent technologies at 100, 200, 400 and 800 Gb/s rates. He will show several examples of how applying insights gained from previously successful applications can lead to flawed conclusions about different applications. If he is persuasive, students will no longer trust what they are taught by their professors and other experts.
Picture
Refreshments Provided.
Picture
Dr. Cole outlines his discussion of Telecom and different modulation formats in the data center

Student Lecture Series: May 3rd 2019

5/2/2019

 
Picture
Picture
Yating Wan
Bowers group
​ECE Dept, UCSB
Low Threshold 1.55 um Quantum Dash Microring Lasers 
​
We report the first room-temperature-continuous-wave (CW) operation of electrically-injected InAs quantum-dash microring lasers emitting at 1.55 µm telecom window. The microrings sustain CW lasing up to 55°C, while the lowest threshold current density is 528 A/cm2 .

Picture
Lei Wang
Klamkin group
​ECE Dept, UCSB
Quantum dot devices on silicon grown by MOCVD 
Direct heteroepitaxy of III-V quantum dots (QDs) is promising for achieving a monolithic laser source for silicon photonics. QDs are believed to be less sensitive to defects than quantum wells, and also offer desirable characteristics for high temperature operation and reduced sensitivity to reflection, because of the 3D carrier confinement of individual QDs. In this talk, I will introduce my research on growth of aluminium-free InAs/GaAs quantum dot laser structure on CMOS-compatible (001) by MOCVD, and some initial fabrication works for both electrically and optically devices. 
Friday, May 3 | 12:00pm | Elings 1605
Pizza will be provided!

    Mailing List

    Supported By

    Picture
    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. ​
    Picture
    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.

    Picture

    Archives

    March 2023
    February 2023
    January 2023
    October 2022
    September 2022
    July 2022
    June 2022
    May 2022
    April 2022
    March 2022
    February 2022
    November 2021
    October 2021
    September 2021
    July 2021
    May 2021
    April 2021
    March 2021
    January 2021
    December 2020
    October 2020
    August 2020
    May 2020
    April 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    July 2019
    June 2019
    May 2019
    April 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    June 2018
    February 2018
    January 2018
    October 2017
    July 2017
    June 2017
    March 2017
    February 2017
    October 2016
    September 2016
    July 2016
    April 2016
    February 2016
    January 2016
    October 2015
    September 2015
    August 2015
    July 2015
    May 2015
    January 2015
    October 2014
    September 2014
    July 2014
    May 2014
    April 2014
    March 2014
    September 2013
    July 2013
    March 2013
    February 2013
    October 2012

    Categories

    All
    Alumni Lectures
    Industry Perspective Lectures
    IPS Distinguished Lectures
    Lectures
    OSA Lectures
    Outreach Events
    Past Events
    Social Events
    Student Lecture Series

Powered by Create your own unique website with customizable templates.