Spin noise spectroscopy in semiconductors: from a billion down to single spins

J. Hübner; R. Dahbashi; F. Berski; J. Wiegand; H. Kuhn; J. Lonnemann; M. Oestreich

doi:10.1117/12.2061926

28 August 2014 Spin noise spectroscopy in semiconductors: from a billion down to single spins

J. Hübner, R. Dahbashi, F. Berski, J. Wiegand, H. Kuhn, J. Lonnemann, M. Oestreich

Proceedings Volume 9167, Spintronics VII; 91672R (2014) https://doi.org/10.1117/12.2061926
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

Spin noise spectroscopy in semiconductors has matured during the past nine years into a versatile and well developed technique being capable to unveil the intrinsic and unaltered spin dynamics in a wide range of semiconductor systems. Originating from atom and quantum optics as a potential true quantum non-demolition measurement technique, SNS is capable of unearthing the intricate dynamics of free or localized electron and hole spins in semiconductors being eventually coupled to the nuclear spin bath as well. In this contribution, we review shortly the major steps which inspired the success of spin noise spectroscopy in semiconductors and present the most recent extensions into the low-invasive detection regime of the spin dynamics for the two extreme limits of very high and extremely low rates of spin decoherence, respectively. On the one hand, merging ultrafast laser spectroscopy with spin noise spectroscopy enables the detection of spin noise with picosecond resolution, i.e., with THz bandwidths yielding access to otherwise concealed microscopic electronic processes. On the other hand, we present very high sensitivity SNS being capable to measure the extremely long spin coherence of single holes enclosed in individual quantum dots venturing a step forward towards true optical quantum non-demolition experiments in semiconductors. In addition, higher-order spin noise statistics of, e.g., single charges can give information beyond the linear response regime governed by the fundamental fluctuationdissipation theorem and thereby possibly shed some light on the nested coupling between electronic and nuclear spins.

Citation Download Citation

J. Hübner, R. Dahbashi, F. Berski, J. Wiegand, H. Kuhn, J. Lonnemann, and M. Oestreich "Spin noise spectroscopy in semiconductors: from a billion down to single spins", Proc. SPIE 9167, Spintronics VII, 91672R (28 August 2014); https://doi.org/10.1117/12.2061926

ACCESS THE FULL ARTICLE

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