YOUR PRIVACY IS IMPORTANT TO US

Edmund Optics uses cookies to optimize and enhance the features and content on our website. Click “OK” for the full user experience, you can view additional information on the cookies we use by clicking the “Details” button. We do NOT sell your information from marketing cookies, we use it to improve ONLY YOUR experience with Edmund Optics.

Details

Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.
- Cookiebot
  1
  Learn more about this provider
  CookieConsentStores the user's cookie consent state for the current domain
  Maximum Storage Duration: 1 yearType: HTTP Cookie
- Google
  2
  Learn more about this provider
  Some of the data collected by this provider is for the purposes of personalization and measuring advertising effectiveness.
  rc::aThis cookie is used to distinguish between humans and bots. This is beneficial for the website, in order to make valid reports on the use of their website.
  Maximum Storage Duration: PersistentType: HTML Local Storage
  rc::cThis cookie is used to distinguish between humans and bots.
  Maximum Storage Duration: SessionType: HTML Local Storage
- LinkedIn
  1
  Learn more about this provider
  li_gcStores the user's cookie consent state for the current domain
  Maximum Storage Duration: 180 daysType: HTTP Cookie
- Livechat
  1
  Learn more about this provider
  #:stateNecessary for the functionality of the website's chat-box function.
  Maximum Storage Duration: PersistentType: HTML Local Storage
- edmundoptics.com
  eogo.edmundoptics.com
  2
  __cf_bm [x2]This cookie is used to distinguish between humans and bots. This is beneficial for the website, in order to make valid reports on the use of their website.
  Maximum Storage Duration: 1 dayType: HTTP Cookie
- eogo.edmundoptics.com
  1
  BIGipServer#Used to distribute traffic to the website on several servers in order to optimise response times.
  Maximum Storage Duration: SessionType: HTTP Cookie
- productimages.edmundoptics.com
  www.edmundoptics.ca
  4
  AWSALB [x2]Registers which server-cluster is serving the visitor. This is used in context with load balancing, in order to optimize user experience.
  Maximum Storage Duration: 7 daysType: HTTP Cookie
  AWSALBCORS [x2]Registers which server-cluster is serving the visitor. This is used in context with load balancing, in order to optimize user experience.
  Maximum Storage Duration: 7 daysType: HTTP Cookie
- service.mtcaptcha.com
  3
  jsVThese cookies are used to secure the website from unwanted bots and automated scripts and help verify human users.
  Maximum Storage Duration: SessionType: HTTP Cookie
  mtv1ConfSumhttps://www.mtcaptcha.com/faq-cookie-declaration
  Maximum Storage Duration: SessionType: HTTP Cookie
  mtv1Pulsehttps://www.mtcaptcha.com/faq-cookie-declaration
  Maximum Storage Duration: SessionType: HTTP Cookie
- www.edmundoptics.ca
  3
  .AspNetCore.Antiforgery.#Helps prevent Cross-Site Request Forgery (CSRF) attacks.
  Maximum Storage Duration: SessionType: HTTP Cookie
  .AspNetCore.Mvc.CookieTempDataProviderPreserves the visitor's session state across page requests.
  Maximum Storage Duration: SessionType: HTTP Cookie
  UMB_SESSIONStores domain prefix to determine whether it holds https or http URL properties.
  Maximum Storage Duration: SessionType: HTTP Cookie
Preference cookies enable a website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in.
- LiveChat
  3
  Learn more about this provider
  __lc_cidNecessary for the functionality of the website's chat-box function.
  Maximum Storage Duration: 400 daysType: HTTP Cookie
  __lc_cstNecessary for the functionality of the website's chat-box function.
  Maximum Storage Duration: 400 daysType: HTTP Cookie
  __oauth_redirect_detectorAllows the website to recoqnise the visitor, in order to optimize the chat-box functionality.
  Maximum Storage Duration: 1 dayType: HTTP Cookie
- Livechat
  2
  Learn more about this provider
  @@lc_auth_token:3b0f44ba-5eb5-4bb1-a9e1-2214776a186bIdentifies the visitor across devices and visits, in order to optimize the chat-box function on the website.
  Maximum Storage Duration: PersistentType: HTML Local Storage
  @@lc_idsIdentifies the visitor across devices and visits, in order to optimize the chat-box function on the website.
  Maximum Storage Duration: PersistentType: HTML Local Storage
Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.
- Convert Insight
  3
  Learn more about this provider
  _conv_rThis cookie is used as a referral-cookie that stores the visitor’s profile – the cookie is overwritten when the visitor re-enters the website and new information on the visitor is collected and stored.
  Maximum Storage Duration: SessionType: HTTP Cookie
  _conv_sThis cookie contains an ID string on the current session. This contains non-personal information on what subpages the visitor enters – this information is used to optimize the visitor's experience.
  Maximum Storage Duration: 1 dayType: HTTP Cookie
  _conv_vThis cookie is used to identify the frequency of visits and how long the visitor is on the website. The cookie is also used to determine how many and which subpages the visitor visits on a website – this information can be used by the website to optimize the domain and its subpages.
  Maximum Storage Duration: 6 monthsType: HTTP Cookie
- Google
  2
  Learn more about this provider
  Some of the data collected by this provider is for the purposes of personalization and measuring advertising effectiveness.
  _gaRegisters a unique ID that is used to generate statistical data on how the visitor uses the website.
  Maximum Storage Duration: 25 monthsType: HTTP Cookie
  _ga_#Used by Google Analytics to collect data on the number of times a user has visited the website as well as dates for the first and most recent visit.
  Maximum Storage Duration: 25 monthsType: HTTP Cookie
- Livechat
  1
  Learn more about this provider
  _livechat_has_visitedIdentifies the visitor across devices and visits, in order to optimize the chat-box function on the website.
  Maximum Storage Duration: PersistentType: HTML Local Storage
Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.
- Meta Platforms, Inc.
  3
  Learn more about this provider
  lastExternalReferrerDetects how the user reached the website by registering their last URL-address.
  Maximum Storage Duration: PersistentType: HTML Local Storage
  lastExternalReferrerTimeDetects how the user reached the website by registering their last URL-address.
  Maximum Storage Duration: PersistentType: HTML Local Storage
  _fbpUsed by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.
  Maximum Storage Duration: 3 monthsType: HTTP Cookie
- Convert Insight
  2
  Learn more about this provider
  conv_randThis cookie is used by the website’s operator in context with multi-variate testing. This is a tool used to combine or change content on the website. This allows the website to find the best variation/edition of the site.
  Maximum Storage Duration: PersistentType: HTML Local Storage
  _conv_sptestThis cookie is used by the website’s operator in context with multi-variate testing. This is a tool used to combine or change content on the website. This allows the website to find the best variation/edition of the site.
  Maximum Storage Duration: SessionType: HTTP Cookie
- Google
  7
  Learn more about this provider
  Some of the data collected by this provider is for the purposes of personalization and measuring advertising effectiveness.
  IDEUsed by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user.
  Maximum Storage Duration: 400 daysType: HTTP Cookie
  pagead/landing [x2]Collects data on visitor behaviour from multiple websites, in order to present more relevant advertisement - This also allows the website to limit the number of times that they are shown the same advertisement.
  Maximum Storage Duration: SessionType: Pixel Tracker
  test_cookieUsed to check if the user's browser supports cookies.
  Maximum Storage Duration: 1 dayType: HTTP Cookie
  _gcl_auUsed by Google AdSense for experimenting with advertisement efficiency across websites using their services.
  Maximum Storage Duration: 3 monthsType: HTTP Cookie
  NIDRegisters a unique ID that identifies a returning user's device. The ID is used for targeted ads.
  Maximum Storage Duration: 6 monthsType: HTTP Cookie
  pagead/1p-user-list/#Tracks if the user has shown interest in specific products or events across multiple websites and detects how the user navigates between sites. This is used for measurement of advertisement efforts and facilitates payment of referral-fees between websites.
  Maximum Storage Duration: SessionType: Pixel Tracker
- LinkedIn
  2
  Learn more about this provider
  bcookieUsed by the social networking service, LinkedIn, for tracking the use of embedded services.
  Maximum Storage Duration: 1 yearType: HTTP Cookie
  lidcUsed by the social networking service, LinkedIn, for tracking the use of embedded services.
  Maximum Storage Duration: 1 dayType: HTTP Cookie
- Marketo
  1
  Learn more about this provider
  _mkto_trkContains data on visitor behaviour and website interaction. This is used in context with the email marketing service Marketo.com, which allows the website to target visitors via email.
  Maximum Storage Duration: 2 yearsType: HTTP Cookie
- Usercentrics GmbH
  1
  Learn more about this provider
  1.gifUsed to count the number of sessions to the website, necessary for optimizing CMP product delivery.
  Maximum Storage Duration: SessionType: Pixel Tracker
- Wisepops
  16
  Learn more about this provider
  __tld__Used to track visitors on multiple websites, in order to present relevant advertisement based on the visitor's preferences.
  Maximum Storage Duration: SessionType: HTTP Cookie
  wisepops [x2]Used in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTTP Cookie
  wisepops_props [x2]Used in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTTP Cookie
  wisepops_session [x2]Used in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTTP Cookie
  wisepops_visitor [x2]Used in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTTP Cookie
  wisepops_visits [x2]Used in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTTP Cookie
  wisepops_session_idUsed in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTML Local Storage
  wisepops_session_landing_urlUsed in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTML Local Storage
  wisepops_session_referrerUsed in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTML Local Storage
  wisepops-pageview_idUsed in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTML Local Storage
  wisepops-uses-attentionUsed in context with pop-up advertisement-content on the website. The cookie determines which ads the visitor should be shown, as well as ensuring that the same ads does not get shown more than intended.
  Maximum Storage Duration: SessionType: HTML Local Storage
- YouTube
  21
  Learn more about this provider
  #-#Used to track user’s interaction with embedded content.
  Maximum Storage Duration: SessionType: HTML Local Storage
  iU5q-!O9@$Registers a unique ID to keep statistics of what videos from YouTube the user has seen.
  Maximum Storage Duration: SessionType: HTML Local Storage
  LAST_RESULT_ENTRY_KEYUsed to track user’s interaction with embedded content.
  Maximum Storage Duration: SessionType: HTTP Cookie
  LogsDatabaseV2:V#||LogsRequestsStoreStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: PersistentType: IndexedDB
  nextIdUsed to track user’s interaction with embedded content.
  Maximum Storage Duration: SessionType: HTTP Cookie
  remote_sidNecessary for the implementation and functionality of YouTube video-content on the website.
  Maximum Storage Duration: SessionType: HTTP Cookie
  requestsUsed to track user’s interaction with embedded content.
  Maximum Storage Duration: SessionType: HTTP Cookie
  ServiceWorkerLogsDatabase#SWHealthLogNecessary for the implementation and functionality of YouTube video-content on the website.
  Maximum Storage Duration: PersistentType: IndexedDB
  TESTCOOKIESENABLEDUsed to track user’s interaction with embedded content.
  Maximum Storage Duration: 1 dayType: HTTP Cookie
  VISITOR_INFO1_LIVETries to estimate the users' bandwidth on pages with integrated YouTube videos.
  Maximum Storage Duration: 180 daysType: HTTP Cookie
  YSCRegisters a unique ID to keep statistics of what videos from YouTube the user has seen.
  Maximum Storage Duration: SessionType: HTTP Cookie
  yt.innertube::nextIdRegisters a unique ID to keep statistics of what videos from YouTube the user has seen.
  Maximum Storage Duration: PersistentType: HTML Local Storage
  ytidb::LAST_RESULT_ENTRY_KEYStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: PersistentType: HTML Local Storage
  YtIdbMeta#databasesUsed to track user’s interaction with embedded content.
  Maximum Storage Duration: PersistentType: IndexedDB
  yt-remote-cast-availableStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: SessionType: HTML Local Storage
  yt-remote-cast-installedStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: SessionType: HTML Local Storage
  yt-remote-connected-devicesStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: PersistentType: HTML Local Storage
  yt-remote-device-idStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: PersistentType: HTML Local Storage
  yt-remote-fast-check-periodStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: SessionType: HTML Local Storage
  yt-remote-session-appStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: SessionType: HTML Local Storage
  yt-remote-session-nameStores the user's video player preferences using embedded YouTube video
  Maximum Storage Duration: SessionType: HTML Local Storage
Unclassified cookies are cookies that we are in the process of classifying, together with the providers of individual cookies.

Cookie declaration last updated on 9/22/24 by Cookiebot

[#IABV2_TITLE#]

[#IABV2_BODY_INTRO#]

[#IABV2_BODY_LEGITIMATE_INTEREST_INTRO#]

[#IABV2_BODY_PREFERENCE_INTRO#]

[#IABV2_BODY_PURPOSES_INTRO#]

[#IABV2_BODY_PURPOSES#]

[#IABV2_BODY_FEATURES_INTRO#]

[#IABV2_BODY_FEATURES#]

[#IABV2_BODY_PARTNERS_INTRO#]

[#IABV2_BODY_PARTNERS#]

Cookies are small text files that can be used by websites to make a user's experience more efficient.

The law states that we can store cookies on your device if they are strictly necessary for the operation of this site. For all other types of cookies we need your permission.

This site uses different types of cookies. Some cookies are placed by third party services that appear on our pages.

You can at any time change or withdraw your consent from the Cookie Declaration on our website.

Learn more about who we are, how you can contact us and how we process personal data in our Privacy Policy.

Please state your consent ID and date when you contact us regarding your consent.

Most web browsers allow you to view your cookies in the browser preferences, typically within the "Privacy" or "Security" tab. Some browsers allow you to delete specific cookies or even prevent cookies from being created. While disallowing cookies in your browser may provide a higher level of privacy, it is not recommended since many websites require cookies to function properly. Alternatively, you can visit www.aboutcookies.org which provides directions on how to block or delete cookies on all major browsers.

Do not sell or share my personal information

Family ID The Family ID is used to identify product family presentations and can be used to quickly access presentations utilizing the search. #4147

ISP Optics Germanium (Ge) Wedged Windows

See More by ISP Optics

Germanium (Ge) Wedged Windows

30 Arcmin Wedge
High Transmission from 2 – 10µm
Ideal for Infrared Applications Requiring Rugged Optics
Precision Flat Germanium Windows Also Available
Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.

Common Specifications

Bevel:

Protective as needed

Clear Aperture (%):

Edges:

Fine Ground

Knoop Hardness (kg/mm²):

780

Poisson's Ratio:

0.28

Young's Modulus (GPa):

102.7

Coating:

Uncoated

Substrate:

Germanium (Ge)

Surface Quality:

60-40

Wavelength Range (nm):

2000 - 14000

Coefficient of Thermal Expansion CTE (10^-6/°C):

6.1

Products
Product Details
Accessories
Related Products
Resources

Products

Dia. (mm)	Thickness (mm)	Coating	Wedge Angle	Stock Number	Price	Buy

25.40 25.40	4.00 4.00	Uncoated Uncoated	30' 30'	#16-810	599.20 C$599.20 Request Quote	In Stock ×
38.10 38.10	5.00 5.00	Uncoated Uncoated	30' ±15' 30' ±15'	#24-581	691.60 C$691.60 Request Quote	In Stock ×
50.80 50.80	6.00 6.00	Uncoated Uncoated	30' 30'	#16-811	1,470.00 C$1,470.00 Qty 11+ C$1,323.00 Request Quote	In Stock ×

Product Details

ISP Optics Germanium (Ge) Wedged Windows provide laser output protection for beam sampling applications and are used to eliminate fringe patterns from etalon effects as well as prevent cavity feedback. Germanium is insoluble, making it inert to water, air, alkalis and acids except nitric acid. Because germanium is subject to thermal runaway, these windows should be used at temperatures below 100°C. Germanium’s high density (5.33g/cm³) should be considered when designing for weight-sensitive systems, and its high index of refraction (~4.0 from 2 - 14μm) should be considered for applications looking to maximize throughput. ISP Optics Germanium (Ge) Wedged Windows offers a broad transmission range and a Knoop Hardness of 780 (approximately twice that of magnesium fluoride), making it suitable for infrared applications requiring rugged optics.

Accessories

Related Products

Diamond-Like Carbon (DLC) Coated Germanium Windows

Germanium (Ge) Windows

PUROSOL™ Optical Cleaner

E-Series Kinematic Optical Mirror Mounts

Resources

Filter

Anti-Reflection (AR) Coatings

Anti-reflection (AR) coatings are applied to optical components to increase throughput and reduce hazards caused by back-reflections.

View Now

An Introduction to Optical Coatings

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

View Now

Advantages of using engineered chalcogenide glass for color corrected, passively athermalized LWIR imaging systems

View Now

Infrared Light

Optical Engineer Andrew Fisher explains how you can see the "invisible" light, or infrared light, from your own TV remote.

View Now

Short Wave Infrared (SWIR)

View Now

Beam Displacement Calculator

View Now

Understanding Optical Windows

Determine how to select an optical window based on its material transmission, thermal and mechanical properties, and other specifications at Edmund Optics.

View Now

Optical Windows Review

Optical Windows provide protection between an optical system or sensitive electronics and an outside environment.

View Now

I need a window for imaging underwater. The water is filtered and at room temperature with a very small amount of detergent in it. It is flowing at low speed. Will a MgF2 coated window survive this for a few years?

View Now

Advantages of Using Meniscus Lenses in Infrared Applications

Meniscus lenses offer superior performance compared to plano convex lenses in IR applications. Find out the benefits of using a meniscus lens at Edmund Optics.

View Now

The Correct Material for Infrared (IR) Applications

Using an Infrared Application? Discover the importance of choosing the right material and comparisons of each at Edmund Optics.

View Now

Is it okay to clean an infrared lens, for example one made of germanium, with ethanol?

View Now

Infrared (IR) Spectrum

View Now

What is SWIR?

Have a question about short-wave infrared (SWIR)? Find definitions, application uses, and examples at Edmund Optics.

View Now

Hyperspectral and Multispectral Imaging

Are you trying to gauge depth of field in your imaging system? Take a closer look at this article on depth of field calculations at Edmund Optics.

View Now

UV vs. IR Grade Fused Silica

UV grade fused silica is ideal for UV and visible applications, but IR grade fused silica has better transmission in the IR due to a lack of OH- impurities.

View Now

Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

Hyperspectral and multispectral imaging are imaging technologies that capture information from a broader portion of the electromagnetic spectrum.

View Now

You offer many substrates for UV and IR applications. How do I know which is best for me?

View Now

Optical Glass

Choosing the right optical glass is important. Find out factors and properties on how to select the right optical glass at Edmund Optics.

View Now

Surface Accuracy

View Now

BBAR Coating

View Now

Understanding Surface Quality Specifications

The surface quality of optical components the scattering off of its surface, which is especially important in laser optics applications.

View Now

Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

View Now

Anti-Reflection (AR) Coating

View Now

Bevel

View Now

Parallelism

View Now

Seamed Edge

View Now

Introduction to Basic Ray Optics

An understanding of refraction and basic ray optics is a critical foundation for understanding more complicated optical concepts and technologies.

View Now

Surface Flatness

View Now

Transmission

View Now

How do I clean my optics?

View Now

Clear Aperture (CA)

View Now

Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

View Now

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

View Now

Surface Quality

View Now

ISP Optics Germanium (Ge) Wedged Windows

Can't find what you need?

Common Specifications

Products

Product Details

Accessories

Related Products

Resources

Anti-Reflection (AR) Coatings

An Introduction to Optical Coatings

Advantages of using engineered chalcogenide glass for color corrected, passively athermalized LWIR imaging systems

Infrared Light

Short Wave Infrared (SWIR)

Beam Displacement Calculator

Understanding Optical Windows

Optical Windows Review

I need a window for imaging underwater. The water is filtered and at room temperature with a very small amount of detergent in it. It is flowing at low speed. Will a MgF2 coated window survive this for a few years?

Advantages of Using Meniscus Lenses in Infrared Applications

The Correct Material for Infrared (IR) Applications

Is it okay to clean an infrared lens, for example one made of germanium, with ethanol?

Infrared (IR) Spectrum

What is SWIR?

Hyperspectral and Multispectral Imaging

UV vs. IR Grade Fused Silica

Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

You offer many substrates for UV and IR applications. How do I know which is best for me?

Optical Glass

Surface Accuracy

BBAR Coating

Understanding Surface Quality Specifications

Removing Protective Plastic Coating

Anti-Reflection (AR) Coating

Bevel

Parallelism

Seamed Edge

Introduction to Basic Ray Optics

Surface Flatness

Transmission

How do I clean my optics?

Clear Aperture (CA)

Edmund Optics Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Surface Quality