發送短信

數:

提供者:

CAPTCHA:

 _    _     _____     ______    ______    _____   
| || | ||  |  ___||  /_____//  /_   _//  / ____|| 
| || | ||  | ||__    `____ `    -| ||-  / //---`' 
| \\_/ ||  | ||__    /___//     _| ||_  \ \\___   
 \____//   |_____||  `__ `     /_____//  \_____|| 
  `---`    `-----`   /_//      `-----`    `----`  
                     `-`

Please enter what you see:

發送短信 : Theoretical comparison of 0.78% tensile strained InGaAs/InAlGaAs and InGaAs/InGaAsP quantum-well lasers emitting at 1.55 μm