JP2010516124A5 - - Google Patents
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- JP2010516124A5 JP2010516124A5 JP2009545015A JP2009545015A JP2010516124A5 JP 2010516124 A5 JP2010516124 A5 JP 2010516124A5 JP 2009545015 A JP2009545015 A JP 2009545015A JP 2009545015 A JP2009545015 A JP 2009545015A JP 2010516124 A5 JP2010516124 A5 JP 2010516124A5
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- Prior art keywords
- photonic crystal
- acoustic sensor
- crystal structure
- optical fiber
- slab
- Prior art date
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- 239000004038 photonic crystal Substances 0.000 claims 37
- 239000003365 glass fiber Substances 0.000 claims 20
- 239000000463 material Substances 0.000 claims 8
- 230000001808 coupling Effects 0.000 claims 6
- 238000010168 coupling process Methods 0.000 claims 6
- 238000005859 coupling reaction Methods 0.000 claims 6
- 230000035945 sensitivity Effects 0.000 claims 6
- 238000004519 manufacturing process Methods 0.000 claims 5
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000003989 dielectric material Substances 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 1
- 230000000737 periodic Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Claims (33)
- 音響センサであって、
少なくとも1つのフォトニック結晶構造と、
前記少なくとも1つのフォトニック結晶構造に光学的に結合された端部を有する光ファイバと、
前記少なくとも1つのフォトニック結晶構造および前記光ファイバに機械的に結合された構造部分とを含み、前記少なくとも1つのフォトニック結晶構造、前記光ファイバおよび前記構造部分は、前記音響センサの周波数応答が音響周波数の範囲において全体的に平坦となるように、ある体積を有する領域と実質的に境をなす、音響センサ。 - 前記体積は約(0.1mm)3より大きい、請求項1に記載の音響センサ。
- 前記周波数応答は、約10kHzと約40kHzの間の音響周波数の範囲において約10dBまで全体的に平坦である、請求項1に記載の音響センサ。
- 前記周波数応答は、約1kHzと約70kHzの間の音響周波数の範囲において約10dBまで全体的に平坦である、請求項1に記載の音響センサ。
- 前記構造部分は、少なくとも1つの孔を含み、前記孔を通して前記体積の外側の媒体が前記体積の中に入ることができる、請求項1に記載の音響センサ。
- 前記少なくとも1つのフォトニック結晶構造は、実質的に平面の構成を有する少なくとも1つのフォトニック結晶スラブを含む、請求項1に記載の音響センサ。
- 前記少なくとも1つのフォトニック結晶スラブは、前記少なくとも1つのフォトニック結晶構造に入射する圧力波に対し、前記光ファイバの端部に対して動くことによって応答するように構成される、請求項6に記載の音響センサ。
- 前記少なくとも1つのフォトニック結晶スラブの直径は、前記音響センサの感度を向上させるように選択される、請求項6に記載の音響センサ。
- 前記少なくとも1つのフォトニック結晶スラブは、第1の材料と、前記スラブ内の領域のアレイとを含み、各領域は、第1の材料の屈折率とは異なる屈折率を有する第2の材料を含む、請求項6に記載の音響センサ。
- 前記領域のアレイは、前記スラブの厚みの少なくとも一部を通して延在するとともに前記第2の材料を含む複数の孔を含み、前記複数の孔は、前記スラブ内において実質的に周期的な分布を有する、請求項9に記載の音響センサ。
- 前記第1の材料は固体誘電体材料を含み、前記第2の材料は空気を含む、請求項10に記載の音響センサ。
- 前記第1の材料は固体誘電体材料を含み、前記第2の材料は水を含む、請求項10に記載の音響センサ。
- 前記孔は実質的に前記スラブ全体に分布する、請求項10に記載の音響センサ。
- 前記孔は前記スラブの中央部分内に分布する、請求項10に記載の音響センサ。
- 前記少なくとも1つのフォトニック結晶構造は、1対のフォトニック結晶スラブを含み、前記対は、前記音響センサ内に固定装着された第1のフォトニック結晶スラブと、前記音響センサ内に可動装着された第2のフォトニック結晶スラブとを含み、前記第2のフォトニック結晶スラブは、前記第1のフォトニック結晶スラブに対して実質的に平行であるとともに前記第1のフォトニック結晶スラブに光学的に結合され、前記第2のフォトニック結晶スラブは、前記少なくとも1つのフォトニック結晶構造に入射する圧力波に応答して前記第1のフォトニック結晶スラブに対して動く、請求項1に記載の音響センサ。
- 少なくとも1つのフォトニック結晶スラブと前記光ファイバとの間に反射層をさらに含み、前記反射層は前記光ファイバから放出される光を少なくとも部分的に透過させる、請求項1に記載の音響センサ。
- 前記反射層は、前記光ファイバの端部に金属コーティングを含む、請求項16に記載の音響センサ。
- 前記反射層は、前記光ファイバの端部に誘電体コーティングを含む、請求項16に記載の音響センサ。
- 音響センサの製造方法であって、
少なくとも1つのフォトニック結晶構造を与えるステップと、
光ファイバの端部を前記少なくとも1つのフォトニック結晶構造に光学的に結合するステップと、
構造部分を与えるとともに、前記構造部分を前記少なくとも1つのフォトニック結晶構造および前記光ファイバに機械的に結合するステップとを含み、前記少なくとも1つのフォトニック結晶構造、前記光ファイバおよび前記構造部分は、前記音響センサの周波数応答が音響周波数の範囲内で全体的に平坦となるように、ある体積を有する領域と実質的に境をなす、音響センサの製造方法。 - 音響センサであって、
少なくとも1つのフォトニック結晶構造と、
前記少なくとも1つのフォトニック結晶構造に光学的に結合された端部を有する光ファイバと、
前記少なくとも1つのフォトニック結晶構造および前記光ファイバに機械的に結合された構造部分とを含み、前記少なくとも1つのフォトニック結晶構造、前記光ファイバおよび前記構造部分は、前記音響センサの感度が、20kHz未満の音響周波数の範囲において約100μPa/Hz1/2より良好となるように、ある体積を有する領域と実質的に境をなす、音響センサ。 - 前記感度は、約100kHz未満の音響周波数の範囲において約65μPa/Hz1/2より良好である、請求項20に記載の音響センサ。
- 前記感度は、約15kHzと約50kHzの間の音響周波数の範囲において約30μPa/Hz1/2より良好である、請求項20に記載の音響センサ。
- 前記感度は、約25kHzと約100kHzの間の音響周波数について約10μPa/Hz1/2より良好である、請求項20に記載の音響センサ。
- 音響センサの製造方法であって、
少なくとも1つのフォトニック結晶構造を与えるステップと、
光ファイバの端部を前記少なくとも1つのフォトニック結晶構造に光学的に結合するステップと、
構造部分を与えるとともに、前記構造部分を前記少なくとも1つのフォトニック結晶構造および前記光ファイバに機械的に結合するステップとを含み、前記少なくとも1つのフォトニック結晶構造、前記光ファイバおよび前記構造部分は、前記音響センサの感度が20kHz未満の音響周波数の範囲において約100μPa/Hz1/2より良好となるように、ある体積を有する領域と実質的に境をなす、音響センサの製造方法。 - 音響センサの製造方法であって、
少なくとも1つのフォトニック結晶構造を与えるステップと、
光ファイバの端部を前記少なくとも1つのフォトニック結晶構造に光学的に結合するステップと、
構造部分を与えるとともに、前記構造部分を前記少なくとも1つのフォトニック結晶構造および前記光ファイバに機械的に結合するステップとを含み、前記少なくとも1つのフォトニック結晶構造と前記光ファイバの端部との間の距離は、前記音響センサの温度安定性を向上させるように選択される、音響センサの製造方法。 - 前記体積は(0.1mm) 3 と(3mm) 3 の間の範囲にある、請求項1に記載の音響センサ。
- 前記体積は(0.1mm) 3 より大きい、請求項19に記載の方法。
- 前記体積は(0.1mm) 3 と(3mm) 3 の間の範囲にある、請求項19に記載の方法。
- 前記体積は(0.1mm) 3 より大きい、請求項20に記載の音響センサ。
- 前記体積は(0.1mm) 3 と(3mm) 3 の間の範囲にある、請求項20に記載の音響センサ。
- 前記体積は(0.1mm) 3 より大きい、請求項24に記載の方法。
- 前記体積は(0.1mm) 3 と(3mm) 3 の間の範囲にある、請求項24に記載の方法。
- 前記距離は約15ミクロン未満である、請求項25に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87946507P | 2007-01-09 | 2007-01-09 | |
US60/879,465 | 2007-01-09 | ||
US307P | 2007-10-23 | 2007-10-23 | |
US61/000,003 | 2007-10-23 | ||
PCT/US2008/050677 WO2008086448A2 (en) | 2007-01-09 | 2008-01-09 | Photonic crystal structure sensor |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2012107240A Division JP5317373B2 (ja) | 2007-01-09 | 2012-05-09 | 向上したフォトニック結晶構造センサ |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010516124A JP2010516124A (ja) | 2010-05-13 |
JP2010516124A5 true JP2010516124A5 (ja) | 2011-01-20 |
JP4995926B2 JP4995926B2 (ja) | 2012-08-08 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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JP2009545015A Expired - Fee Related JP4995926B2 (ja) | 2007-01-09 | 2008-01-09 | 向上したフォトニック結晶構造センサ |
JP2012107240A Expired - Fee Related JP5317373B2 (ja) | 2007-01-09 | 2012-05-09 | 向上したフォトニック結晶構造センサ |
Family Applications After (1)
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JP2012107240A Expired - Fee Related JP5317373B2 (ja) | 2007-01-09 | 2012-05-09 | 向上したフォトニック結晶構造センサ |
Country Status (6)
Country | Link |
---|---|
US (3) | US7630589B2 (ja) |
EP (2) | EP2104842B1 (ja) |
JP (2) | JP4995926B2 (ja) |
AT (1) | ATE523769T1 (ja) |
CA (2) | CA2928100C (ja) |
WO (1) | WO2008086448A2 (ja) |
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