Products Home直角プリズムミラー、誘電体コーティング付き
- Broadband Dielectric Coatings Available
for 400 - 750 nm or 750 - 1100 nm - Eight Leg Dimensions From 3.0 mm to 50.0 mm
MRA20-E03
(L = 20.0 mm)
MRA10-E03
(L = 10.0 mm)
MRA25-E02
(L = 25.0 mm)
MRA03-E02
(L = 3.0 mm)
Please Wait
プリズムのサイズは直角を挟む辺の長さLによって定義され、下記の製品リストに記載されています。 製品の全寸法については「仕様」タブをご参照ください。
入射ビームに対する直角プリズムミラーの配置方法を示した概略図
特長
- 400～750 nmまたは750～1100 nmの2種類の広帯域誘電体コーティング付き、Ravg ＞ 99%
- 直角を挟む辺の長さLについて3.0 mm、5.0 mm、10.0 mm、12.5 mm、15.0 mm、20.0 mm、25.0 mm、50.0 mmの8つのサイズをご用意
- 0°ならびに45°の入射角(AOI)用に設計
- N-BK7ガラス基板より加工
- 斜辺部が反射する設計
当社では400～750 nmまたは750～1100 nmの波長範囲用広帯域誘電体コーティング付き直角プリズムミラーをご提供しております。 この製品の仕様波長範囲における平均反射率は、＞99%となっております(詳細は、「グラフ」のタブをご覧ください)。 直角プリズムの斜辺部(右図参照)には、外側から入射する光を反射するよう光学品質の誘電体コーティングが施されております(詳細は「仕様」タブを参照してください)。金属コーティング付きならびにNd:YAGレーザーライン用コーティング付きの直角プリズムミラーもご用意しております。
上の写真にみられるように、コーティング付きの斜面の右と左の端には切削痕があります。 これは製造工程において生じるもので、ミラーの開口に影響するものではありません(詳細は「仕様」タブを参照してください)。
なお、コーティング工程で必要とされる接着層があるので、プリズム内部から入射した光をコーティング面で反射するのはお勧めできません。 そのため、プリズムの短辺(研磨済み)については仕様化されていません。 プリズムの上面と底面はすりガラス仕上げになっています。
25.0 mmと50.0 mmプリズムの上面には型番が刻印されており、識別が簡単です。この25.0 mmプリズムについては 30 mmケージキューブマウント済みのタイプもご用意しています。
| Right Angle Prism Mirror Selection Guide |
|---|
| Hypotenuse Coated |
| Metallic Coatings (250 nm - 20 µm) |
| Dielectric Coatings (400 nm - 1100 nm) |
| Laser Line (532 nm and 1064 nm) |
| Leg Coated |
| Knife-Edge, Metallic and Dielectric Coatings (250 nm - 20 µm) |
| Dielectric Coatings (400 nm - 1100 nm) |
| Item # | La | Xa | Prism Angular Tolerance | Reflectance (Click for Graph) |
|---|---|---|---|---|
| Broadband Dielectric Coating: 400 nm - 750 nm | ||||
| MRA03-E02 | 3.0 mm | 4.2 mm | ±10 arcmin | Ravg > 99% (400 nm - 750 nm) |
| MRA05-E02 | 5.0 mm | 7.1 mm | ±3 arcmin | |
| MRA10-E02 | 10.0 mm | 14.1 mm | ||
| MRA12-E02 | 12.5 mm | 17.7 mm | ||
| MRA15-E02 | 15.0 mm | 21.2 mm | ||
| MRA20-E02 | 20.0 mm | 28.3 mm | ||
| MRA25-E02 | 25.0 mm | 35.4 mm | ||
| MRA50-E02 | 50.0 mm | 70.7 mm | ||
| Broadband Dielectric Coating: 750 nm - 1100 nm | ||||
| MRA03-E03 | 3.0 mm | 4.2 mm | ±10 arcmin | Ravg > 99% (750 nm - 1100 nm) |
| MRA05-E03 | 5.0 mm | 7.1 mm | ±3 arcmin | |
| MRA10-E03 | 10.0 mm | 14.1 mm | ||
| MRA12-E03 | 12.5 mm | 17.7 mm | ||
| MRA15-E03 | 15.0 mm | 21.2 mm | ||
| MRA20-E03 | 20.0 mm | 28.3 mm | ||
| MRA25-E03 | 25.0 mm | 35.4 mm | ||
| MRA50-E03 | 50.0 mm | 70.7 mm | ||
| Common Specifications | |
|---|---|
| Substrate Material | N-BK7a |
| Dimensional Tolerance | ±0.1 mm |
| Surface Flatness (Coated Surface) | λ/10 @ 633 nm (Peak to Valley) |
| Surface Quality (Coated Surface) | 50 mm Prisms: 20-10 Scratch Dig All Other Sizes: 10-5 Scratch Dig |
| Clear Aperture | 70% of Face Length and Width |
プリズムのサイズは直角を挟む辺の長さLによって定義され、下記の製品リストに記載されています。 製品の全寸法については右の表をご覧ください。
入射ビームに対する直角プリズムミラーの配置方法を示した概略図
プロット図は、当社の典型的なコーティングである400 nm～750 nm(-E02誘電体コーティング)、750 nm～1100 nm(-E03誘電体コーティング)の反射特性を示しています。グラフの網掛け部分は、このコーティングの反射率が非常に高いスペクトル範囲を示しています。 ロット毎にバラツキがあるため、実際には、この推奨スペクトル範囲よりも広い範囲で高い反射率を示します。このデータの解釈について疑問点がありましたら当社にお問い合わせください。これらの2種類の誘電体コーティングのスペクトル範囲をまたぐようなミラーが必要な場合には、金属コーティングミラーをご検討ください。
400 nm～750 nm(-E02コーティング)
750 nm～1100 nm(-E03コーティング)
| Posted Comments: | |
Hung Cheng
(posted 2024-03-27 23:57:16.467) Could this product can also serve as Right-Angle Prisms so that we can inject the laser from the cathetus side and direct 90 degrees to another side? cdolbashian
(posted 2024-03-29 02:11:36.0) Thank you for reaching out to us with this inquiry Hung. While it seems like this would be a feasible application, we actually have a note on the product overview:
"Please note that reflecting light off of the coated surface from inside the prism is not recommended because of the adhesion layers used in the coating process. As a result, no specifications are given for the polished legs (short sides) of the prism....". I have contacted you to discuss your application and possible alternatives. Vitalie Nedelea
(posted 2023-03-24 12:01:43.85) Dear Thorlabs team.
I'm looking for a 45 degree reflective prism mirror, with coated side surfaces in red (700-1100). Is it possible to order such a prism from you ? What would be the delivery time and the price for 4 pieces ?
Have a nice day.
Kind regards. ksosnowski
(posted 2023-03-28 03:39:55.0) Hello Vitalie, thanks for reaching out to Thorlabs. For any custom requests we recommend contacting techsupport@thorlabs.com directly. Unfortunately we do not have a coating designed for this exact range. We have data for the -E03 coating on our Graphs Tab above and at AOI of 45 degrees, the reflection at 700nm is still above 95%. At normal incidence, the coating band is shifted towards longer wavelengths as does not cover 700nm as well. If a wider performance band is needed, metallic mirrors such as gold -M01 coating may be an option. I have reached out directly to discuss your application in more detail. George Correos
(posted 2021-02-10 18:33:12.42) Can you tell me the damage threshold for the MRA25-E03? Especially for QCW fiber laser running long pulses at 1070nm. YLohia
(posted 2021-03-25 11:58:21.0) Thank you for contacting Thorlabs. Unfortunately, we don't have formal damage threshold data for these coatings. That being said, perhaps we may be able to provide a comment based on your laser parameters, could you tell us the following parameters? Peak power, Average power, Pulse width, Rep rate, Beam diameter. Chen Avinadav
(posted 2021-01-06 01:46:51.983) Can you please provide information on the polarization phase shift of E03-coated prism mirrors? Can we expect consistent performance in this regard from prisms bought separately at different times, which have undergone different coating runs? YLohia
(posted 2021-01-19 03:45:51.0) I have reached out to you directly with the phase delay information of this coating. We expect the phase performance of these mirrors to vary between different production lots over time. user
(posted 2018-06-28 12:47:17.523) Why is the specified clear aperture so low ("70% of face length and width"), while the dielectric coating seems to extend until the beveled edge of the prism? For example, the 5mm prism has a specified clear aperture of only 3.5mm (height), but the bevels in the technical drawing seem to be only 0.25mm on each side so it would seem that the coated part of the mirror face is at least 4.5mm. What makes that we cannot use the outer parts of the coated area? YLohia
(posted 2018-07-03 10:28:44.0) The mirrors are laid out flat on two rails in the coating chamber with the surface being coated facing downwards and making contact with the rails. These rails are ~0.5mm thick each and cannot be placed on the beveled edges of the mirror surface. So now, the remaining clear aperture is 5 mm - 2*0.25 mm - 2*0.50 mm = 3.5 mm at best, which is the 70% spec. Please contact techsupport@thorlabs.com if you have further questions. mlippert
(posted 2016-12-07 13:31:07.067) Hello,
I'm using micro-prisms for my research (Ca-Imaging in the brain). Typically these prisms are very tiny (0.2-1 mm length). Would it be possible to take up such small prisms (dielectric or metallic) into your catalog?
And I would have another suggestion for an additional product: GRIN Lenses. Currently, the ones you carry are mainly useful for fiber coupling. However, recently people have been starting to do a lot of micro-endoscopy in the brain using GRIN lenses as relay to bring an image plane from deep within the brain to the surface (e.g. Mark Schnitzer and his Inscopix company). While the original lenses are from GRINTECH, GoFoton also now manufactures GRIN lenses for imaging applications. Usually the required lenses would be able to bring a imaging plane of 200 µm in front of one side up to the second side of a lens, which is typically 3,5 or 7 mm long. The wavelengths used are in the blue for excitation and green for emission. If you were to approach GoFoton, they will know which lenses I'm talking about. Maybe they'd be happy to find a distributor.
Best,
Michael tfrisch
(posted 2016-12-14 02:15:15.0) Hello Michael, thank you for your detailed feedback. I will reach out to you directly about our custom capabilities for prisms. As for the GRIN lenses, I have posted your idea in our internal engineering forum. Thank you for the suggestion. am
(posted 2016-10-11 13:49:20.247) Can you de prism 3mm? Right Angle Prism Mirrors, Dielectric Coatings jlow
(posted 2016-10-11 09:54:47.0) Response from Jeremy at Thorlabs: Yes we can make 3mm prism mirrors. We will release these as stock items online by the end of this month. |
ズーム- Lの寸法は8種類:3.0 mm、5.0 mm、10.0 mm、12.5 mm、15.0 mm、20.0 mm、25.0 mm、50.0 mm(詳細は上の概略図を参照)
- 平均反射率：> 99%(400～750 nm)
この広帯域誘電体コーティング付き直角プリズムミラーは、垂直反射および45°反射に適しています。400～750 nmの波長域において、S偏光、P偏光とも優れた性能を発揮します。このミラーの一般的な性能についての詳細は「グラフ」タブをご参照ください。また各プリズムミラーの仕様の詳細については「仕様」タブをご覧ください。
ズーム- Lの寸法は8種類: 3.0 mm、5.0 mm、10.0 mm、12.5 mm、15.0 mm、20.0 mm、25.0 mm、50.0 mm (詳細は上の概略図を参照)
- 平均反射率：> 99% (750 nm～1100 nm)
この広帯域誘電体コーティング付き直角プリズムミラーは、垂直反射および45°反射に適しています。750～1100 nmの波長域において、S偏光、P偏光とも優れた性能を発揮します。このミラーの一般的な性能についての詳細は「グラフ」タブをご参照ください。また各プリズムミラーの仕様の詳細については「仕様」タブをご覧ください。
誘電体コーティング付きプリズムミラー
