<p>Kolkata: Researchers from IIT Kharagpur have developed a 'zero-threshold Raman laser' that could revolutionise nanoscale laser technology with immense potential for quantum communications, the institute said in a statement.</p>.<p>A Zero Threshold Raman Laser refers to a type of laser based on the Raman scattering effect allowing highly efficient light generation with very low power requirements.</p>.<p>Pointing out that the development marks a significant milestone in the field of laser technology, the statement issued on Friday said the research team's work was recently published as a letter in the prestigious journal <em>Physical Review B</em>.</p>.<p>The work was funded by the Science and Engineering Research Board (CRG) and the Ministry of Education (STARS), Government of India.</p>.<p>Unlike conventional lasers, this Raman laser enhances the ability to shift the frequency of a pump laser to ranges previously unattainable through traditional methods.</p>.Japan, India startups to study laser-equipped satellite to tackle space debris.<p>The key innovation of this zero-threshold Raman laser is its capacity to convert the frequency of quantum light sources while preserving their inherent quantum nature, a crucial factor for the future of quantum communication technologies, the statement explained.</p>.<p>A significant breakthrough has been attained through the creation of an optical microcavity utilising highly reflective mirrors, within which a layer of semiconductor, only a few atomic layers thick, is sandwiched, it said.</p>.<p>The researchers' team, led by Dr Sajal Dhara, affirmed that their work on the zero-threshold Raman laser offers new insights into light-matter interactions, which could pave the way for ground-breaking research in semiconductor quantum optics.</p>.<p>This advancement holds the potential to uncover remarkable phenomena that may play a pivotal role in shaping the future of quantum technologies.</p>
<p>Kolkata: Researchers from IIT Kharagpur have developed a 'zero-threshold Raman laser' that could revolutionise nanoscale laser technology with immense potential for quantum communications, the institute said in a statement.</p>.<p>A Zero Threshold Raman Laser refers to a type of laser based on the Raman scattering effect allowing highly efficient light generation with very low power requirements.</p>.<p>Pointing out that the development marks a significant milestone in the field of laser technology, the statement issued on Friday said the research team's work was recently published as a letter in the prestigious journal <em>Physical Review B</em>.</p>.<p>The work was funded by the Science and Engineering Research Board (CRG) and the Ministry of Education (STARS), Government of India.</p>.<p>Unlike conventional lasers, this Raman laser enhances the ability to shift the frequency of a pump laser to ranges previously unattainable through traditional methods.</p>.Japan, India startups to study laser-equipped satellite to tackle space debris.<p>The key innovation of this zero-threshold Raman laser is its capacity to convert the frequency of quantum light sources while preserving their inherent quantum nature, a crucial factor for the future of quantum communication technologies, the statement explained.</p>.<p>A significant breakthrough has been attained through the creation of an optical microcavity utilising highly reflective mirrors, within which a layer of semiconductor, only a few atomic layers thick, is sandwiched, it said.</p>.<p>The researchers' team, led by Dr Sajal Dhara, affirmed that their work on the zero-threshold Raman laser offers new insights into light-matter interactions, which could pave the way for ground-breaking research in semiconductor quantum optics.</p>.<p>This advancement holds the potential to uncover remarkable phenomena that may play a pivotal role in shaping the future of quantum technologies.</p>