ON DEMAND: Learn how to enhance uptime and quality control with next-gen vision sensors at Photonics Media's Summit!
Register
Sign In
Suppliers
Products
Categories
Handbook
Dictionary
Careers
Resources
Photonics Spectra
BioPhotonics
Vision Spectra
Virtual Events & Summits
Educational Institutions
Add/Update Your Listing
Exhibitor Listing Portal
Become an Exhibitor
Buyers' Guide Print Edition
Marketplace Help
Subscribe
Advertise
Suppliers
Products
Categories
Handbook
Dictionary
Careers
Resources
Photonics Spectra
BioPhotonics
Vision Spectra
Virtual Events & Summits
Educational Institutions
Add/Update Your Listing
Exhibitor Listing Portal
Become an Exhibitor
Buyers' Guide Print Edition
Marketplace Help
Register
Sign In
Photonics Dictionary
surface-enhanced Raman spectroscopy
Surface-enhanced Raman spectroscopy (SERS) is an analytical technique that combines the principles of Raman spectroscopy with the enhancement provided by nanostructured metallic surfaces. Raman spectroscopy is a method used to study vibrational, rotational, and other low-frequency modes in a system by measuring the inelastic scattering of monochromatic light, typically from a laser source. SERS enhances the Raman signal by many orders of magnitude, enabling the detection and identification of trace amounts of molecules.
Key features and components of surface-enhanced Raman spectroscopy include:
Noble metal substrates:
SERS relies on the interaction between molecules and noble metal surfaces, such as gold or silver. These metals support the excitation of localized surface plasmon resonances, leading to a significant enhancement of the Raman scattering signal.
Enhancement mechanisms:
The enhancement in SERS arises from two main mechanisms: electromagnetic enhancement and chemical enhancement. The former is related to the excitation of localized surface plasmons, which intensify the incident electromagnetic field at the metal surface. The latter involves charge transfer between the metal and adsorbed molecules.
High sensitivity:
SERS provides high sensitivity, allowing the detection of molecules at extremely low concentrations. This property makes it valuable in fields such as chemistry, biology, environmental science, and materials science.
Molecular fingerprints:
Like traditional Raman spectroscopy, SERS provides molecular fingerprints based on the vibrational modes of chemical bonds. This enables the identification and characterization of various substances, even at low concentrations.
Biomedical applications:
SERS has applications in biomedical research and diagnostics. It can be used for the detection of biomolecules, such as DNA, proteins, and drugs, and has potential applications in medical imaging and disease diagnosis.
Chemical imaging:
SERS can be employed for chemical imaging, providing spatially resolved information about the distribution of different molecular species. This is particularly useful for studying heterogeneous samples.
Substrate design:
The design and fabrication of nanostructured substrates play a crucial role in optimizing SERS performance. Substrates with specific nanostructures, such as nanoparticles or nanowires, enhance the electromagnetic field and facilitate the adsorption of molecules.
Popular Articles
Diffraction Gratings: Selection Guidelines
What Is Photonics?
Fiber Lasers: Continuing to Power Growth
Scatter and BSDF Measurements: Theory and Practice
Detectors: Options for Low-Light Applications
Explore Our Content
News
Features
Latest Products
Webinars
White Papers
All Things Photonics Podcast
Photonics Spectra
Now
Videos
Our Summits & Conferences
Industry Events
Bookstore
Join Our Community
Subscribe
Advertise
Become a member
Sign in
Contribute a Feature
Suggest a Webinar
Submit a Press Release
Mobile Apps
About Us
Our Company
Our Publications
Contact Us
Career Opportunities
Teddi C. Laurin Scholarship
Terms & Conditions
Privacy Policy
California Consumer Privacy Act (CCPA)
©2024 Photonics Media
100 West St.
Pittsfield, MA, 01201 USA
[email protected]
Requesting information about:
*
First Name:
*
Last Name:
*
Email Address:
*
Company:
*
Country:
Please select your country
Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antigua and Barbuda
Argentina
Armenia
Aruba
Ascension Island
Australia
Austria
Azerbaijan
Bahamas
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Belize
Benin
Bermuda
Bhutan
Bolivia
Bonaire
Bosnia & Herzegovina
Botswana
Brazil
British Indian Ocean Territory
Brunei Darussalam
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Canada
Cape Verde
Cayman Islands
Central African Republic
Chad
Chile
China
Colombia
Comoros
Congo
Cook Islands
Costa Rica
Croatia
Cuba
Curacao
Cyprus
Czech Republic
Denmark
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Eswatini
Ethiopia
Falkland Islands
Faroe Islands
Fiji
Finland
France
French Guiana
French Polynesia
Gabon
Gambia
Gaza
Georgia
Germany
Ghana
Gibraltar
Greece
Greenland
Grenada
Guadeloupe
Guam
Guatemala
Guernsey
Guinea
Guinea-Bissau
Guyana
Haiti
Honduras
Hong Kong
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Isle of Man
Israel
Italy
Ivory Coast
Jamaica
Japan
Jersey
Jordan
Kazakhstan
Kenya
Kiribati
Kosovo
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Macao
Madagascar
Malawi
Malaysia
Maldives
Mali
Malta
Marshall Islands
Martinique
Mauritania
Mauritius
Mexico
Micronesia
Moldova
Monaco
Mongolia
Montenegro
Montserrat
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
Netherlands
New Caledonia
New Zealand
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Korea
North Macedonia
Northern Mariana Islands
Norway
Oman
Pakistan
Palau
Palestine
Panama
Papua New Guinea
Paraguay
Peru
Philippines
Pitcairn Islands
Poland
Portugal
Puerto Rico
Qatar
Reunion
Romania
Russia
Rwanda
Saint Helena
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Samoa
San Marino
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Korea
South Sudan
Spain
Sri Lanka
Sudan
Suriname
Sweden
Switzerland
Syria
Taiwan
Tajikistan
Tanzania
Thailand
Timor-Leste
Togo
Tonga
Trinidad and Tobago
Tunisia
Turkey
Turkmenistan
Turks and Caicos
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom
United States
Uruguay
Uzbekistan
Vanuatu
Vatican City State
Venezuela
Vietnam
Virgin Islands - British
Virgin Islands - U.S.
Yemen
Zambia
Zimbabwe
Message:
When you click "Send Request", we will record and send your personal contact information to the supplier by email so they may respond directly. You also agree that Photonics Media may contact you with information related to this inquiry, and that you have read and accept our
Privacy Policy
and
Terms and Conditions of Use
.
* Required
We use cookies to improve user experience and analyze our website traffic as stated in our
Privacy Policy
. By using this website, you agree to the use of
cookies
unless you have disabled them.