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Photonic Device Engineering Lab
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The lab controls light freely with photonic crystals.
AboutAbout the lab
Controlling light freely with optical nanostructures
The Photonic Device Engineering Lab studies a variety of photonic devices based on photonic crystals, optical nanostructures that can control light freely.
Light has physical quantities such as color (wavelength), intensity (amplitude), phase, and polarization.
The lab specializes in spatially designing the physical quantities of laser beams.
Its work includes research on controlling the polarization state of beams emitted from photonic-crystal lasers, and research on strained photonic crystals that can bend light.
Key terms
- Photonic crystal
- A nanoscale periodic structure used to control light freely
- Polarization
- The direction in which the waves of light oscillate. It is one of the physical quantities of light, and, along with wavelength, intensity, and phase, it is a target of design
- Doughnut beam
- A laser beam whose cross section is doughnut-shaped. It is expected to achieve both a small focal spot and a deep depth of focus
ResearchResearch themes
The lab studies a variety of photonic devices that control light freely, based on optical nanostructures called photonic crystals. Its research includes designing the beams of photonic-crystal lasers and creating new science of photonic crystals.
*Illustrative imageBeam control of photonic-crystal lasers
By designing the arrangement of lattice points in a photonic crystal, the lab controls the polarization state of the laser beam in many different ways. The doughnut beam, a representative example, is expected to achieve a smaller focal spot and a deeper depth of focus than usual at the same time, and this lab can generate it with a single device.
*Illustrative imageNew photonic crystal science
The lab has devised "strained photonic crystals," in which the structure of a photonic crystal is changed gradually. With this structure, light that normally travels in a straight line can be bent.
MembersFaculty
- ProfessorKyoko Kitamura
- Project Associate ProfessorShun Takahashi
- Assistant ProfessorRyohei Morita
- Project Assistant ProfessorZijun Bian
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Military laser experiment” US Air Force / Public domain (cropped)
- Beam control of photonic-crystal lasers: “Laser Interference” Wisky / CC BY-SA 3.0 (cropped)
- New photonic crystal science: “Photonic-crystal fiber” Разумовский Алексей Сергеевич Наний Олег Евгеньевич / CC BY-SA 3.0 (cropped)
- Related lab (Mizukami Lab): “Film VO2” Nerfles / CC BY-SA 4.0 (cropped)
- Related lab (Photonic Quantum Information and Communication Lab): “Optical Table with doubled Nd-YAG Laser” Giorgio Brida from Torino, Italy / CC BY 2.0 (cropped)
- Related lab (Dielectric Nanodevices Lab): “Ferroelectric-wiki-w3” Chem538w10grp5 / Public domain (cropped)
- Related lab (Okamoto Lab): “Ferromagnetic domains in spiral pattern for Fe60Al40” Magnunor / CC BY-SA 4.0 (cropped)
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