Retrieve Search Results Based on the First Letter in a Specific Field

Hey,

Is it possible to search based on the first letter in a specified field of documents?

for example, when the query is letter 'A", all documents that have titles that start with 'A' are returned.

thanks.

Using wildcard query . Here is a example:
GET /_search

{
     "query": {
        "wildcard": {
           "title": {
               "value": "A*"
                  }
              }
          }
     }