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Title: Ultrafast optical switches using quantum wells

Abstract

Colloidal quantum wells have discrete energy states and electrons in the quantum wells undergo interband and intersubband state transitions. The transmissivity of a colloidal quantum well may be tuned by actively controlling the states of the colloidal quantum wells enabling ultrafast optical switching. A primary excitation source is configured to provide a primary excitation to promote a colloidal quantum well from a ground state to a first excitation state. A secondary excitation source is configured to provide a secondary excitation to the colloidal quantum well to promote the colloidal quantum well from the first excitation state to the second excitation state with the first and second excitation states being subbands in the conduction band of the colloidal quantum well.

Inventors:
;
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1892936
Patent Number(s):
11333908
Application Number:
16/431,777
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/05/2019
Country of Publication:
United States
Language:
English

Citation Formats

Diroll, Benjamin, and Schaller, Richard D. Ultrafast optical switches using quantum wells. United States: N. p., 2022. Web.
Diroll, Benjamin, & Schaller, Richard D. Ultrafast optical switches using quantum wells. United States.
Diroll, Benjamin, and Schaller, Richard D. Tue . "Ultrafast optical switches using quantum wells". United States. https://www.osti.gov/servlets/purl/1892936.
@article{osti_1892936,
title = {Ultrafast optical switches using quantum wells},
author = {Diroll, Benjamin and Schaller, Richard D.},
abstractNote = {Colloidal quantum wells have discrete energy states and electrons in the quantum wells undergo interband and intersubband state transitions. The transmissivity of a colloidal quantum well may be tuned by actively controlling the states of the colloidal quantum wells enabling ultrafast optical switching. A primary excitation source is configured to provide a primary excitation to promote a colloidal quantum well from a ground state to a first excitation state. A secondary excitation source is configured to provide a secondary excitation to the colloidal quantum well to promote the colloidal quantum well from the first excitation state to the second excitation state with the first and second excitation states being subbands in the conduction band of the colloidal quantum well.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {5}
}

Works referenced in this record:

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patent-application, August 2017


Carrier Cooling in Colloidal Quantum Wells
journal, February 2012


Semiconductor nanoparticle assembly and method for manufacturing the same
patent, February 2019


Near- and mid-infrared intersubband absorption in top-down GaN/AlN nano- and micro-pillars
journal, November 2018


Systems and Methods for Ultrafast Plasmonic Response in Doped, Colloidal Nanostructures
patent-application, April 2018


Sub-picosecond electron relaxation of near-infrared intersubband transitions in n -doped (CdS/ZnSe)/BeTe quantum wells
journal, October 2002


Nanoparticles
patent, January 2011


Optimization of barrier layer thickness in MgSe/CdSe quantum wells for intersubband devices in the near infrared region
journal, October 2015