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Title: Giant Modal Gain Coefficients in Colloidal II–VI Nanoplatelets

Abstract

Modal gain coefficient is a key figure of merit for a laser material. Previously, net modal gain coefficients larger than a few thousand cm–1 were achieved in II–VI and III–V semiconductor gain media, but this required operation at cryogenic temperatures. In this work, using pump-fluence-dependent variable-stripe-length measurements, we show that colloidal CdSe nanoplatelets enable giant modal gain coefficients at room temperature up to 6600 cm–1 under pulsed optical excitation. Furthermore, we show that exceptional gain performance is common to the family of CdSe nanoplatelets, as shown by examining samples having different vertical thicknesses and lateral areas. Altogether, colloidal II–VI nanoplatelets with superior optical gain properties are promising for a broad range of applications, including high-speed light amplification and loss compensation in plasmonic photonic circuits.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Bilkent Univ., Ankara (Turkey)
  2. Univ. of Maryland Baltimore County (UMBC), Baltimore, MD (United States)
  3. Bilkent Univ., Ankara (Turkey); Bolu Abant Izzet Baysal Univ., Bolu (Turkey)
  4. Nanyang Technological Univ. (Singapore); Bilkent Univ., Ankara (Turkey)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1493457
Grant/Contract Number:  
AC02-76SF00515; NRFI2016-08
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 19; Journal Issue: 1; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CdSe; Colloidal nanoplatelets; colloidal quantum wells; modal gain coefficient; optical gain; variable stripe length method

Citation Formats

Guzelturk, Burak, Pelton, Matthew, Olutas, Murat, and Demir, Hilmi Volkan. Giant Modal Gain Coefficients in Colloidal II–VI Nanoplatelets. United States: N. p., 2018. Web. https://doi.org/10.1021/acs.nanolett.8b03891.
Guzelturk, Burak, Pelton, Matthew, Olutas, Murat, & Demir, Hilmi Volkan. Giant Modal Gain Coefficients in Colloidal II–VI Nanoplatelets. United States. https://doi.org/10.1021/acs.nanolett.8b03891
Guzelturk, Burak, Pelton, Matthew, Olutas, Murat, and Demir, Hilmi Volkan. Wed . "Giant Modal Gain Coefficients in Colloidal II–VI Nanoplatelets". United States. https://doi.org/10.1021/acs.nanolett.8b03891. https://www.osti.gov/servlets/purl/1493457.
@article{osti_1493457,
title = {Giant Modal Gain Coefficients in Colloidal II–VI Nanoplatelets},
author = {Guzelturk, Burak and Pelton, Matthew and Olutas, Murat and Demir, Hilmi Volkan},
abstractNote = {Modal gain coefficient is a key figure of merit for a laser material. Previously, net modal gain coefficients larger than a few thousand cm–1 were achieved in II–VI and III–V semiconductor gain media, but this required operation at cryogenic temperatures. In this work, using pump-fluence-dependent variable-stripe-length measurements, we show that colloidal CdSe nanoplatelets enable giant modal gain coefficients at room temperature up to 6600 cm–1 under pulsed optical excitation. Furthermore, we show that exceptional gain performance is common to the family of CdSe nanoplatelets, as shown by examining samples having different vertical thicknesses and lateral areas. Altogether, colloidal II–VI nanoplatelets with superior optical gain properties are promising for a broad range of applications, including high-speed light amplification and loss compensation in plasmonic photonic circuits.},
doi = {10.1021/acs.nanolett.8b03891},
journal = {Nano Letters},
number = 1,
volume = 19,
place = {United States},
year = {2018},
month = {12}
}

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Cited by: 13 works
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    Works referencing / citing this record:

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