Joseph Pankert

General Manager Philips Photonics　Philips Group Innovation

Theme：”VCSELs in every car, every home and every mobile device”

9：15 – 9：55

Vertical Cavity Surface Emitting Lasers (“VCSELs”) have been first demonstrated more than 40 years ago by Kenichi Iga. First commercial applications in optical data transmission were introduced more than 20 years ago, but it appears that true mass adoption of VCSELs is happening only now. The main drivers for this development are widespread use of VCSEL in optical sensors in mobile devices (proximity, auto-focus, identification) and the ever-increasing data traffic that requires optical interconnects even for consumer devices. Industrial robots and autonomous vehicles will drive another wave of optical sensors that most likely will rely on VCSELs.

The first part of talk will cover the main properties of VCSELs and its main applications. The second part will address current developments and potential new fields that VCSEL technology will conquer in the future.

Mutsuko Hatano

Tokyo Institute of Technology,
Professor, Graduate School of Engineering, Department of electrical engineering

Theme：”Diamond Electronics and Photonics: Application to Quantum Sensors”

9：55 – 10：35

Nitrogen-vacancy centers (NVC) in diamond have superior physical properties at room temperature for quantum sensing of magnetic field, electronic field, temperature, and pressure with scalable applications from atomic-scale to macroscopic range. Spin state (S=1) of electrons localized at the NV center can be initialized and read out optically. In conjunction with spin state manipulation using microwave radiation, optically detected magnetic resonance (ODMR) can be performed. We would like to introduce highly sensitive diamond sensors by applying advanced nano-device technologies, quantum sensing protocols and module system. For application, we will show the biological imaging, nano-scale NMR, and the device sensing. To develop the diamond quantum sensor further, advanced technologies for both photonics and electronics are needed.

Lihong V. Wang

Bren Professor, Medical and Electrical Engineering at California Institute of Technology

Theme：”Photoacoustic Tomography: Omniscale Imaging from Organelles to Patients by Ultrasonically Beating Optical Diffusion”

10：50 – 11：30

Photoacoustic tomography (PAT) has been developed for in vivo functional, metabolic, molecular, and histologic imaging by physically combining optical and ultrasonic waves. Broad applications include early-cancer detection and brain imaging. High-resolution pure optical imaging—such as confocal microscopy, two-photon microscopy, and optical coherence tomography—is limited to superficial imaging within the optical diffusion limit (~1 mm in the skin) in scattering tissue. By synergistically combining light and sound, PAT in the form of either photoacoustic computed tomography or photoacoustic microscopy provides deep penetration at high ultrasonic resolution and high optical contrast. PAT is the only modality capable of imaging across the length scales of organelles, cells, tissues, and organs (or small-animal organisms) with consistent contrast. The annual conference on PAT has become the largest in SPIE’s 20,000-attendee Photonics West since 2010. Also, wavefront engineering and compressed ultrafast photography (world’s fastest camera) will be touched upon.

Wim Leemans

Director, Accelerator Technology and Applied Physics Division, Director, BELLA Center Lawrence Berkeley National Laboratory

Theme：”Experiments on laser plasma accelerators with the BELLA laser and exploring the path towards future applications.”

11：30 – 12：10

We will discuss the progress on building laser powered, plasma based particle accelerators where electrons surf on waves and can reach energy levels in a fraction of a meter that, if one relies on conventional methods, would require machines multiple football fields long. Although many challenges remain, this new technology is at the brink of offering a profoundly different way in which we may build particle accelerators such as those used in light sources, compact gamma ray sources, medical cancer therapy devices, and even colliders.