div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Yablonovitch Research Group Electrical Engineering optoelectronicseecsberkeleyeduey1987prl5820pdfVOLUME 58 NUMBER 20 PHYSICAL REVIEW LETTERS 18 MAY 1987 good match to the src=https:reader035fdocumentsusreader035viewer20220630025f2b2b9034c1dd164151f393html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Yablonovitch Research Group Electrical Engineering optoelectronicseecsberkeleyeduey1987prl5820pdfVOLUME 58 NUMBER 20 PHYSICAL REVIEW LETTERS 18 MAY 1987 good match to the src=https:reader035fdocumentsusreader035viewer20220630025f2b2b9034c1dd164151f393html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Yablonovitch Research Group Electrical Engineering optoelectronicseecsberkeleyeduey1987prl5820pdfVOLUME 58 NUMBER 20 PHYSICAL REVIEW LETTERS 18 MAY 1987 good match to the src=https:reader035fdocumentsusreader035viewer20220630025f2b2b9034c1dd164151f393html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Yablonovitch Research Group Electrical Engineering optoelectronicseecsberkeleyeduey1987prl5820pdfVOLUME 58 NUMBER 20 PHYSICAL REVIEW LETTERS 18 MAY 1987 good match to the src=https:reader035fdocumentsusreader035viewer20220630025f2b2b9034c1dd164151f393html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv