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2D material controls light twice stronger


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IMAGE: The SH light produced in the MoS2 double layer has the same phase as the MoS2 layer so the overlaid secondary harmonic wave has linear polarization. However, in a heterobilayer.
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Credit: POSTECH
Since the invention of world s first laser - the ruby laser - in 1960, the human desire to control light has spread to various industries, including telecommunications, medicine, GPS, optical sensors and optical computers. Recently, a POSTECH research team has taken a step closer to its goal of controlling light by identifying nonlinear optical phenomena occurring in heterobilayers composed of two-dimensional materials.
A nonlinear optical phenomenon refers to the occurrence of light whose intensity is not doubled when optical input intensity becomes doubled, in which the resulting output has different frequencies from original input. This phenomenon is easily understood if you think of electrons and nuclei as spring-connected oscillat ....

South Korea , Sunmin Ryu , Wontaek Kim , Department Of Chemistry , Research Lab Program , Career Researcher Program , Professor Sunmin Ryu , Nano Letters , Mid Career Researcher Program , Basic Research Lab Program , Waals Material Science , Chemical Engineering Lab , National Research Foundation , தெற்கு கொரியா , துறை ஆஃப் வேதியியல் , ஆராய்ச்சி ஆய்வகம் ப்ரோக்ர்யாம் , தொழில் ஆராய்ச்சியாளர் ப்ரோக்ர்யாம் , நானோ எழுத்துக்கள் , நடுவில் தொழில் ஆராய்ச்சியாளர் ப்ரோக்ர்யாம் , அடிப்படை ஆராய்ச்சி ஆய்வகம் ப்ரோக்ர்யாம் , இரசாயன பொறியியல் ஆய்வகம் , தேசிய ஆராய்ச்சி அடித்தளம் ,