Publication detail
Near field optical beam induced current measurements on heterostructures
LÉTAL, P. TOMÁNEK, P. GRMELA, L.
Czech title
Měření opticky indukovaného fotoproudu v blízkém poli na heterostrukturách
English title
Near field optical beam induced current measurements on heterostructures
Type
conference paper
Language
en
Original abstract
We report near field optical beam induced current (NOBIC) measurements on semiconductor quantum well (QW) structures. A sub-wavelength fiber tip is coupled with a tunable laser source and scanned over a sample surface. The induced photocurrent reveals the compositional profile of quantum structures. We demonstrated that the resolution of this technique depends strongly on the aperture size.
Czech abstract
Článek přináší informace o měření opticky indukovaného fotoproudu v blízkém poli na heterostrukturách s kvantovou jámou. Hrot sondy je připojen k laditelnému laseru a skenuje povrch. Indukovaný fotoproud odráží profil složení kvantové struktury. Ukazuje se, že rozlišení těsně závisí na velikosti apertury sondy.
English abstract
We report near field optical beam induced current (NOBIC) measurements on semiconductor quantum well (QW) structures. A sub-wavelength fiber tip is coupled with a tunable laser source and scanned over a sample surface. The induced photocurrent reveals the compositional profile of quantum structures. We demonstrated that the resolution of this technique depends strongly on the aperture size.
Keywords in Czech
optika v blízkém poli, lokálně indukovaný fotoproud, kvantová jáma, příčná rozlišovací schopnost
Keywords in English
near field optics, locally induced photocurrent, quantum wells, lateral resolution
RIV year
2001
Released
15.11.2001
Publisher
Vysoké učení technické v Brně
Location
Brno
ISBN
80-214-1992-X
Book
Nové trendy ve fyzice (New trends in Physics)
Pages count
7
BIBTEX
@inproceedings{BUT6610,
author="Petr {Létal} and Pavel {Tománek} and Lubomír {Grmela},
title="Near field optical beam induced current measurements on heterostructures",
booktitle="Nové trendy ve fyzice (New trends in Physics)",
year="2001",
month="November",
publisher="Vysoké učení technické v Brně",
address="Brno",
isbn="80-214-1992-X"
}