TY  - JOUR
AU  - Nozaki, Kengo
AU  - Shinya, Akihiko
AU  - Matsuo, Shinji
AU  - Suzaki, Yasumasa
AU  - Segawa, Toru
AU  - Sato, Tomonari
AU  - Kawaguchi, Yoshihiro
AU  - Takahashi, Ryo
AU  - Notomi, Masaya
PY  - 2012
DA  - 2012//
TI  - Ultralow-power all-optical RAM based on nanocavities
T2  - Nat. Photon.
JO  - Nature Photonics
SP  - 248
EP  - 252
VL  - 6
IS  - 4
KW  - fromIPMRAS
AB  - Optical random-access memory (o-RAM) has been regarded as one of the most difficult challenges in terms of replacing its various functionalities in electronic circuitry with their photonic counterparts. Nevertheless, it constitutes a key device in optical routing and processing. Here, we demonstrate that photonic crystal nanocavities with an ultrasmall buried heterostructure design can solve most of the problems encountered in previous o-RAMs. By taking advantage of the strong confinement of photons and carriers and allowing heat to escape efficiently, we have realized all-optical RAMs with a power consumption of only 30 nW, which is more than 300 times lower than the previous record, and have achieved continuous operation. We have also demonstrated their feasibility in multibit integration. This paves the way for constructing a low-power large-scale o-RAM system that can handle high-bit-rate optical signals.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=786), last updated on Mon, 07 May 2012 21:16:58 -0500
ID  - Nozaki_etal2012
ER  -