Mr. Dean T. Clarke Profile

Dean T. Clarke

PhD student at Optoelectronics Research Ctr

SPIE Involvement:

Author

Publications (2)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 14 September 2018 Open Access

Student-led outreach and public engagement activities at the University of Southampton to celebrate the inaugural International Day of Light

Callum Stirling, Andrei Donko, Neda Baktash, Katarzyna Grabska, Angeles Camacho Rosales, Dean Clarke, Jake Prentice, Matthew Posner

Proceedings Volume 10741, 107410B (2018) https://doi.org/10.1117/12.2320304

KEYWORDS: Video, Photonics, Outreach programs, Spectroscopy, Optoelectronics

Read Abstract +

The 16th May 2018 marks the first annual International Day of Light (IDL). The steering committee of the IDL initiative encouraged grassroots activities to increase the awareness and understanding of the applications of light. One such undertaking is the program of events developed by the postgraduate students of the Optoelectronics Research Centre (ORC) at the University of Southampton (UoS). The program focused on engaging with the public and local schools with low levels of progression to higher education. Three events were designed: an outreach masterclass, combining activities and demonstrations from well-established workshops covering light in telecommunications, manufacturing and medicine; an art competition in a local school, for students to express scientific knowledge in a creative way; and a public panel, to explore the uses of light in a multitude of disciplines and open academic research to a broader audience. This paper explains how the events built on the ORC students’ long history of outreach and the legacy of the International Year of Light. Each event is outlined in detail, explaining the objectives and the rationale behind the audience selection. The program outcomes are described, including the impact, the methods employed and the utilization of expert partners to increase the program reach (commercial media, local schools and UoS’s diversity and inclusion outreach department), and the lessons learned from the program are assessed. These experiences can be used to recycle and adapt this format for other grassroots IDL programs. This project received funding through a SPIE IDL Micro Grant.

DOWNLOAD PAPER

Proceedings Article | 29 May 2018 Presentation

Alignment requirements of Fabry-Perot microresonators for ion trap quantum information processing (Conference Presentation)

Dean Clarke, Peter Horak

Proceedings Volume 10674, 106740P (2018) https://doi.org/10.1117/12.2307152

KEYWORDS: Ions, Fabry–Perot interferometers, Quantum information processing, Microresonators, Mirrors, Photons, Fiber couplers, Quantum computing, Optical resonators, Quantum efficiency

Read Abstract +

In recent years there has been rapid progress into realising a working universal quantum computer, in particular with the development of chip-based radio frequency ion traps. The next significant leap will come with successfully integrating optical cavities into these ion traps to allow for interaction between remote ions via photons as required for more efficient and scalable quantum networking schemes. Fibre-tip cavities are especially interesting for such applications as they enable highly efficient coupling of photons from the cavity into optical fibres for onward transmission. Here we analyse theoretically and numerically the effects of parallel off-axial misalignment in millimetre scale optical Fabry-Perot cavities. While near-concentric cavity configurations produce the smallest mode waist and thus strongest coupling to a trapped ion, their mode is extremely sensitive to misalignment. Shorter cavities exhibit more robust modes, but at the cost of larger mode waists. For example, for typical experimental parameters (mirror radius of curvature 0.7 mm, mirror diameter 0.140 mm, operation wavelength 850 nm) we find that the cavity lifetime is reduced by a factor 1/e for a misalignment of 0.95 nm for a beam waist of 2.91 um (cavity length of 1.397 mm), which increases to 11.0 nm for a waist of 4.33 um (length of 1.386 mm), and 3.12 um for a waist of 7.38 um (length of 1.273 mm). In the parameter regimes of interest, we derive a simple relation between cavity length, mirror radius, and misalignment sensitivity. Finally, we also consider the effect of mode matching of the misaligned cavity mode with the optical mode of the fibre for efficient cavity to fibre coupling. In conclusion, our model allows us to optimise photon-ion coupling in fibre-tip resonators for quantum information processing in the presence of finite fabrication and alignment tolerances.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years