Coherent control of exiton in a single quantum dot using a high-resolution Michelson interferometer

Takumi Okada, K. Komori, K. Goshima +4 more

Michelson Interferometer Takumi OKADA , Kazuhiro KOMORI, Keishiro GOSHIMA, Shohgo YAMAUCHI, Isao MOROHASHI, Takeyoshi SUGAYA, Osamu YAMAZAKI, Mutsuo OGURA and Toshiaki HATTORI Department of Information and Network, Tokai University Junior College, 2-3-23 Takanawa, Minato-ku, Tokyo 108-8619, Japan National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Ibaraki 305-8568, Japan CREST, Japan Science and Technology Corporation (JST), 4-1-8 Honcyou, Kawaguchi, Saitama 332-0012, Japan Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennoudai, Ibaraki 305-8573, Japan

N. H. Bonadeo, John Erland Østergaard, Dan Gammon +3 more

Jeppe Johansen, Peter Lodahl, J. M. Hvam

Takumi Okada, Kazuhiro Komori, Keishiro Goshima +6 more

We developed a high-resolution Michelson interferometer with a He–Ne two-frequency laser positioning system, and measured the coherent carrier dynamics of a single InAs self-assembled quantum dot (SAQD) using a micro-spectroscopy system. The phase-locked double pulses were stabilized, with the maximum deviation being below 10 nm during the long measurement time of 1 h. Using this system, coherent control of an exciton in an InAs SAQD with very fine phase stabilization was demonstrated. The dephasing time of the single quantum dots was 9.5 ps which is close to that estimated from the homogeneous linewidth in the photoluminescence excitation (PLE) spectrum.

John Erland, N. H. Bonadeo, Duncan G. Steel +3 more

Takumi Okada, Kazuhiro Komori, Keishiro Goshima +5 more

We developed a high resolution Michelson interferometer with a two-frequency He-Ne laser positioning system in order to stabilize the relative phase of a pulse pair. The control resolution corresponded to a 12 as time resolution or a phase of 1.5 degrees at 900 nm. This high resolution Michelson interferometer can generate a phase-locked pulse pair either with a specific relative phase such as 0 or pi radians or with an arbitrary phase. Coherent control of an InAs self-assembled quantum dot was demonstrated using the high resolution Michelson interferometer with a microspectroscopy system.