[et_pb_section fb_built=”1″ admin_label=”section” _builder_version=”4.5.1″ background_color=”#e1e1e1″ custom_padding=”0px||0px|” transparent_background=”off” make_fullwidth=”off” use_custom_width=”off” width_unit=”on”][et_pb_row column_structure=”1_3,1_3,1_3″ use_custom_gutter=”on” gutter_width=”1″ make_equal=”on” admin_label=”row” module_class=” et_pb_row_fullwidth” _builder_version=”4.5.1″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” width=”100%” width_tablet=”100%” width_phone=”” width_last_edited=”on|desktop” max_width=”100%” max_width_tablet=”100%” max_width_phone=”” max_width_last_edited=”on|desktop” custom_padding=”0px||0px|” make_fullwidth=”on” use_custom_width=”off” width_unit=”on”][et_pb_column type=”1_3″ _builder_version=”4.5.1″ background_color=”#3b4249″ custom_padding=”45px|45px|22.5px|45px|false|false” custom_padding__hover=”|||”][et_pb_post_title meta=”off” featured_image=”off” _builder_version=”4.5.6″ _module_preset=”default” title_text_color=”#d7ac2f”][\/et_pb_post_title][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.5.1″ background_color=”#d1d1cb” custom_padding=”45px|45px|22.5px|45px|false|false” custom_padding__hover=”|||”][et_pb_text admin_label=”Texto” _builder_version=”4.5.7″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” use_border_color=”off” border_color=”#ffffff” border_style=”solid”]<\/p>\n
<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.5.1″ background_color=”#d1d1cb” custom_padding=”45px|45px|22.5px|45px|false|false” custom_padding__hover=”|||”][et_pb_text admin_label=”Texto” _builder_version=”4.5.1″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” use_border_color=”off” border_color=”#ffffff” border_style=”solid”]<\/p>\n Light is a wave or it is a particle? Actually is both of them, as quantum physics explain. As it acts as a particle, it interacts with matter. This interaction is studied by optomechanics. Even in a macroscopic scale light pressure has its effects, light can move a mirror or can make some flat panels rotate. But what happens if the object that interacts with is a nanowire? [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.5.1″ _module_preset=”default” background_color=”#e1e1e1″][et_pb_column type=”4_4″ _builder_version=”4.5.1″ _module_preset=”default” background_color=”#e1e1e1″][et_pb_image src=”https:\/\/outreach-wp.ixole.es\/wp-content\/uploads\/2020\/08\/fuster.jpg” title_text=”fuster” url=”https:\/\/outreach-wp.ixole.es\/wp-content\/uploads\/2020\/08\/fuster.jpg” align=”center” force_fullwidth=”on” _builder_version=”4.5.7″ _module_preset=”default” hover_enabled=”0″][\/et_pb_image][et_pb_post_nav _builder_version=”4.5.1″ _module_preset=”default” title_font=”|600|||||||” title_text_color=”#918050″][\/et_pb_post_nav][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ use_custom_gutter=”on” gutter_width=”1″ make_equal=”on” admin_label=”row” module_class=” et_pb_row_fullwidth” _builder_version=”4.5.1″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” width=”100%” width_tablet=”100%” width_phone=”” width_last_edited=”on|desktop” max_width=”100%” max_width_tablet=”100%” max_width_phone=”” max_width_last_edited=”on|desktop” custom_padding=”0px||0px|” make_fullwidth=”on” use_custom_width=”off” width_unit=”on”][et_pb_column type=”1_3″ _builder_version=”4.5.1″ background_color=”#e1e1e1″ custom_padding=”|45px||45px|false|false” custom_padding__hover=”|||”][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.5.1″ background_color=”#e1e1e1″ custom_padding=”|45px||45px|false|false” custom_padding__hover=”|||”][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.5.1″ background_color=”#e1e1e1″ custom_padding=”|45px||45px|false|false” custom_padding__hover=”|||”][et_pb_button button_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wb3N0Iiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjYzNjUifX0=@” button_text=”Tornar als projectes” button_alignment=”left” admin_label=”Bot\u00f3n Dorado” module_id=”botons” module_class=”botons” _builder_version=”4.5.7″ _dynamic_attributes=”button_url” custom_button=”on” button_text_color=”#918050″ button_border_color=”#918050″ button_icon_color=”#918050″ button_on_hover=”off” custom_css_main_element=”margin-top: 10px;” custom_css_after=” margin-left: 0px !important;” button_text_color_hover=”#918050″ button_border_color_hover=”#918050″ button_border_radius_hover=”0″ button_letter_spacing_hover=”0″ saved_tabs=”all” button_text_size__hover_enabled=”off” button_one_text_size__hover_enabled=”off” button_two_text_size__hover_enabled=”off” button_text_color__hover_enabled=”on” button_text_color__hover=”#918050″ button_one_text_color__hover_enabled=”off” button_two_text_color__hover_enabled=”off” button_border_width__hover_enabled=”off” button_one_border_width__hover_enabled=”off” button_two_border_width__hover_enabled=”off” button_border_color__hover_enabled=”on” button_border_color__hover=”#918050″ button_one_border_color__hover_enabled=”off” button_two_border_color__hover_enabled=”off” button_border_radius__hover_enabled=”on” button_border_radius__hover=”0″ button_one_border_radius__hover_enabled=”off” button_two_border_radius__hover_enabled=”off” button_letter_spacing__hover_enabled=”on” button_letter_spacing__hover=”0″ button_one_letter_spacing__hover_enabled=”off” button_two_letter_spacing__hover_enabled=”off” button_bg_color__hover_enabled=”off” button_one_bg_color__hover_enabled=”off” button_two_bg_color__hover_enabled=”off”][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" marc fuster la salle manlleu – manlleuLight is a wave or it is a particle? Actually is both of them, as quantum physics explain. As it acts as a particle, it interacts with matter. This interaction is studied by optomechanics. Even in a macroscopic scale light pressure has its effects, light can move a mirror […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"project_category":[215,222,257],"project_tag":[],"acf":[],"yoast_head":"\n<\/h3>\n
la salle manlleu – manlleu<\/span><\/h4>\n
In such dimensions (the diameter of the nanowire is 100 nm) quantum mechanics have an important weight on the motion of the resonator, another way to name our nanowire. In this level even the tiny pressure of the light or the contact with some particle might be decisive in our resonator\u2019s motion. If our aim is to study this nanotube\u2019s motion, and as some of you may know, stabilizing the nanowire\u2019s natural frequency is imperative, as we will need to apply our own forces to help us to study its motion. Is at this point where lasers are vital.
As nanowires act as objects with a motion a bit more complicated than the SHM. For this reason, they have frequency, a spring constant and a mass. In order to know its frequency we use a circuit of a collimated and
polarized laser, converged to lower than its wavelength and we make it reflex to our resonator. We detect it with a photodiode and we send our data to a computer via a hardware called Redpitaya.
As we receive a matrix of number it\u2019s hard to know our nanowire\u2019s motion. With the purpose of knowing the frequency we apply a procedure called demodulation, consisting of multiplication of a signal with a known frequency and amplitude (they must be as close as possible to the nanotube\u2019s one) and the application of a device called low pass filter to cut off the noise frequency. This demodulation will give us two constants and with a simple linear equation system we can know the frequency, phase and amplitude of the motion.
Once the demodulation is done, we can apply a signal with a secondary laser and an opposite phase in order to block the motion of our oscillator and make the experiments we want to do!<\/p>\n